Common Name: FLEETWELD 37, 1/8" (3.2 MM)
Manufacturer: LINCOLN ELECTRIC
SDS Revision Date: 7/8/2021
SDS Format: GHS-US
   
Item Number(s): 12C120, 12C129, 786VU3, 786VU4, 786VU5, 786WX8, 786WX9, 786WY0, 786WY1, 786WY2
Manufacturer Model Number(s):



SDS Table of Contents
Click the desired link below to jump directly to that section in the SDS.
1. PRODUCT AND COMPANY IDENTIFICATION 
2. HAZARDS IDENTIFICATION 
3. COMPOSITION / INFORMATION ON INGREDIENTS 
4. FIRST AID MEASURES 
5. FIRE-FIGHTING MEASURES 
6. ACCIDENTAL RELEASE MEASURES 
7. HANDLING AND STORAGE 
8. EXPOSURE CONTROLS / PERSONAL PROTECTION 
9. PHYSICAL AND CHEMICAL PROPERTIES 
10. STABILITY AND REACTIVITY 
11. TOXICOLOGICAL INFORMATION 
12. ECOLOGICAL INFORMATION 
13. DISPOSAL CONSIDERATIONS 
14. TRANSPORT INFORMATION 
15. REGULATORY INFORMATION 
16. OTHER INFORMATION 



LINCOLN(R*) ELECTRIC

REVISION DATE: 07/08/2021

SAFETY DATA SHEET


1. PRODUCT AND COMPANY IDENTIFICATION 


PRODUCT NAME: FLEETWELD(R*) 37

PRODUCT SIZE: 1/8" (3.2 MM)

OTHER MEANS OF IDENTIFICATION:
SDS NUMBER: 200000000593

RECOMMENDED USE AND RESTRICTION ON USE:
RECOMMENDED USE: SMAW (SHIELDED METAL ARC WELDING)
RESTRICTIONS ON USE: NOT KNOWN. READ THIS SDS BEFORE USING THIS PRODUCT.

MANUFACTURER/IMPORTER/SUPPLIER/DISTRIBUTOR INFORMATION:

COMPANY NAME: THE LINCOLN ELECTRIC COMPANY

ADDRESS:
22801 SAINT CLAIR AVENUE
CLEVELAND, OHIO 44117
USA

TELEPHONE: +1 (216) 481-8100

CONTACT PERSON:
SAFETY DATA SHEET QUESTIONS: WWW.LINCOLNELECTRIC.COM/SDS
ARC WELDING SAFETY INFORMATION: WWW.LINCOLNELECTRIC.COM/SAFETY

COMPANY NAME: LINCOLN ELECTRIC MEXICANA S.A. DE C.V.

ADDRESS:
CALZ. AZCAPOTZALCO LA VILLA NO. 869
DELEGACION AZCAPOTZALCO 02300 MEXICO, D.F.
MEXICO

TELEPHONE: +1 52 55 5063 0030

CONTACT PERSON:
SAFETY DATA SHEET QUESTIONS: WWW.LINCOLNELECTRIC.COM/SDS
ARC WELDING SAFETY INFORMATION: WWW.LINCOLNELECTRIC.COM/SAFETY

COMPANY NAME: THE LINCOLN ELECTRIC COMPANY OF CANADA LP

ADDRESS:
179 WICKSTEED AVENUE
TORONTO, ONTARIO M4G 2B9
CANADA

TELEPHONE: +1 (416) 421-2600

CONTACT PERSON:
SAFETY DATA SHEET QUESTIONS: WWW.LINCOLNELECTRIC.COM/SDS
ARC WELDING SAFETY INFORMATION: WWW.LINCOLNELECTRIC.COM/SAFETY

EMERGENCY TELEPHONE NUMBER:
USA/CANADA/MEXICO: +1 (888) 609-1762
AMERICAS/EUROPE: +1 (216) 383-8962
ASIA PACIFIC: +1 (216) 383-8966
MIDDLE EAST/AFRICA: +1 (216) 383-8969

3E COMPANY ACCESS CODE: 333988


2. HAZARDS IDENTIFICATION 


CLASSIFIED ACCORDING TO THE CRITERIA OF THE GLOBALLY HARMONIZED SYSTEM OF
CLASSIFICATION AND LABELING OF CHEMICALS (GHS), THE UNITED STATES
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION'S HAZARD COMMUNICATION
STANDARD (29 CFR 1910.1200), CANADA'S HAZARDOUS PRODUCT REGULATIONS AND
MEXICO'S HARMONIZED SYSTEM FOR THE IDENTIFICATION AND COMMUNICATION OF
HAZARDS AND RISKS FROM HAZARDOUS CHEMICALS IN THE WORKPLACE.

HAZARD CLASSIFICATION:
NOT CLASSIFIED AS HAZARDOUS ACCORDING TO APPLICABLE GHS HAZARD
CLASSIFICATION CRITERIA.

LABEL ELEMENTS:

HAZARD SYMBOL: NO SYMBOL

SIGNAL WORD: NO SIGNAL WORD.

HAZARD STATEMENT: NOT APPLICABLE

PRECAUTIONARY STATEMENTS: NOT APPLICABLE

OTHER HAZARDS WHICH DO NOT RESULT IN GHS CLASSIFICATION:
ELECTRICAL SHOCK CAN KILL. IF WELDING MUST BE PERFORMED IN DAMP LOCATIONS
OR WITH WET CLOTHING, ON METAL STRUCTURES OR WHEN IN CRAMPED POSITIONS SUCH
AS SITTING, KNEELING OR LYING, OR IF THERE IS A HIGH RISK OF UNAVOIDABLE OR
ACCIDENTAL CONTACT WITH WORK PIECE, USE THE FOLLOWING EQUIPMENT:
SEMIAUTOMATIC DC WELDER, DC MANUAL (STICK) WELDER, OR AC WELDER WITH
REDUCED VOLTAGE CONTROL.

ARC RAYS CAN INJURE EYES AND BURN SKIN. WELDING ARC AND SPARKS CAN IGNITE
COMBUSTIBLES AND FLAMMABLE MATERIALS. OVEREXPOSURE TO WELDING FUMES AND
GASES CAN BE HAZARDOUS. READ AND UNDERSTAND THE MANUFACTURER'S
INSTRUCTIONS, SAFETY DATA SHEETS AND THE PRECAUTIONARY LABELS BEFORE USING
THIS PRODUCT. REFER TO SECTION 8.

SUBSTANCE(S) FORMED UNDER THE CONDITIONS OF USE:
THE WELDING FUME PRODUCED FROM THIS WELDING ELECTRODE MAY CONTAIN THE
FOLLOWING CONSTITUENT(S) AND/OR THEIR COMPLEX METALLIC OXIDES AS WELL AS
SOLID PARTICLES OR OTHER CONSTITUENTS FROM THE CONSUMABLES, BASE METAL, OR
BASE METAL COATING NOT LISTED BELOW.

CHEMICAL IDENTITY                              CAS-NO.

CARBON DIOXIDE                                   124-38-9

CARBON MONOXIDE                                  630-08-0

NITROGEN DIOXIDE                               10102-44-0

OZONE                                          10028-15-6

MANGANESE                                       7439-96-5


3. COMPOSITION / INFORMATION ON INGREDIENTS 


REPORTABLE HAZARDOUS INGREDIENTS:

MIXTURES:

CHEMICAL IDENTITY                  CAS NUMBER       CONTENT IN PERCENT (%)*

IRON                                7439-89-6        50 - <100%

TITANIUM DIOXIDE                   13463-67-7        10 - <20%
(NATURALLY OCCURRING)

MICA                               12001-26-2         1 - <5%

POTASSIUM SILICATE                  1312-76-1         1 - <5%

MANGANESE                           7439-96-5         1 - <5%

CALCIUM CARBONATE                    471-34-1       0.1 - <1%

MAGNESITE                            546-93-0       0.1 - <1%

QUARTZ                             14808-60-7       0.1 - <1%

IRON OXIDE                          1309-37-1       0.1 - <1%

ZIRCONIUM OXIDE                     1314-23-4       0.1 - <1%

ALUMINUM OXIDE                      1344-28-1       0.1 - <1%

CELLULOSE, PULP                    65996-61-4       0.1 - <1%

FELDSPAR                           68476-25-5       0.1 - <1%

SILICON DIOXIDE (AMORPHOUS)         7631-86-9       0.1 - <1%

HYDROXYETHYL CELLULOSE              9004-62-0       0.1 - <1%

SILICON                             7440-21-3       0.1 - <1%

VANADIUM PENTOXIDE                  1314-62-1       0.1 - <1%

*ALL CONCENTRATIONS ARE PERCENT BY WEIGHT UNLESS INGREDIENT IS A GAS. GAS
CONCENTRATIONS ARE IN PERCENT BY VOLUME.

COMPOSITION COMMENTS:
THE TERM "HAZARDOUS INGREDIENTS" SHOULD BE INTERPRETED AS A TERM DEFINED IN
HAZARD COMMUNICATION STANDARDS AND DOES NOT NECESSARILY IMPLY THE EXISTENCE
OF A WELDING HAZARD. THE PRODUCT MAY CONTAIN ADDITIONAL NON-HAZARDOUS
INGREDIENTS OR MAY FORM ADDITIONAL COMPOUNDS UNDER THE CONDITION OF USE.
REFER TO SECTIONS 2 AND 8 FOR MORE INFORMATION.


4. FIRST AID MEASURES 


INGESTION:
AVOID HAND, CLOTHING, FOOD, AND DRINK CONTACT WITH FLUXES, METAL FUME OR
POWDER WHICH CAN CAUSE INGESTION OF PARTICULATE DURING HAND TO MOUTH
ACTIVITIES SUCH AS DRINKING, EATING, SMOKING, ETC. IF INGESTED, DO NOT
INDUCE VOMITING. CONTACT A POISON CONTROL CENTER. UNLESS THE POISON CONTROL
CENTER ADVISES OTHERWISE, WASH OUT MOUTH THOROUGHLY WITH WATER. IF SYMPTOMS
DEVELOP, SEEK MEDICAL ATTENTION AT ONCE.

INHALATION:
MOVE TO FRESH AIR IF BREATHING IS DIFFICULT. IF BREATHING HAS STOPPED,
PERFORM ARTIFICIAL RESPIRATION AND OBTAIN MEDICAL ASSISTANCE AT ONCE.

SKIN CONTACT:
REMOVE CONTAMINATED CLOTHING AND WASH THE SKIN THOROUGHLY WITH SOAP AND
WATER. FOR REDDENED OR BLISTERED SKIN, OR THERMAL BURNS, OBTAIN MEDICAL
ASSISTANCE AT ONCE.

EYE CONTACT:
DUST OR FUME FROM THIS PRODUCT SHOULD BE FLUSHED FROM THE EYES WITH COPIOUS
AMOUNTS OF CLEAN, TEPID WATER UNTIL TRANSPORTED TO AN EMERGENCY MEDICAL
FACILITY. DO NOT ALLOW VICTIM TO RUB OR KEEP EYES TIGHTLY CLOSED. OBTAIN
MEDICAL ASSISTANCE AT ONCE.

ARC RAYS CAN INJURE EYES. IF EXPOSED TO ARC RAYS, MOVE VICTIM TO DARK ROOM,
REMOVE CONTACT LENSES AS NECESSARY FOR TREATMENT, COVER EYES WITH A PADDED
DRESSING AND REST. OBTAIN MEDICAL ASSISTANCE IF SYMPTOMS PERSIST.

MOST IMPORTANT SYMPTOMS/EFFECTS, ACUTE AND DELAYED:

SYMPTOMS:
SHORT-TERM (ACUTE) OVEREXPOSURE TO FUMES AND GASES FROM WELDING AND ALLIED
PROCESSES MAY RESULT IN DISCOMFORT SUCH AS METAL FUME FEVER, DIZZINESS,
NAUSEA, OR DRYNESS OR IRRITATION OF NOSE, THROAT, OR EYES. MAY AGGRAVATE
PRE-EXISTING RESPIRATORY PROBLEMS (E.G. ASTHMA, EMPHYSEMA). LONG-TERM
(CHRONIC) OVEREXPOSURE TO FUMES AND GASES FROM WELDING AND ALLIED PROCESSES
CAN LEAD TO SIDEROSIS (IRON DEPOSITS IN LUNG), CENTRAL NERVOUS SYSTEM
EFFECTS, BRONCHITIS AND OTHER PULMONARY EFFECTS. REFER TO SECTION 11 FOR
MORE INFORMATION.

HAZARDS:
THE HAZARDS ASSOCIATED WITH WELDING AND ITS ALLIED PROCESSES SUCH AS
SOLDERING AND BRAZING ARE COMPLEX AND MAY INCLUDE PHYSICAL AND HEALTH
HAZARDS SUCH AS BUT NOT LIMITED TO ELECTRIC SHOCK, PHYSICAL STRAINS,
RADIATION BURNS (EYE FLASH), THERMAL BURNS DUE TO HOT METAL OR SPATTER AND
POTENTIAL HEALTH EFFECTS OF OVEREXPOSURE TO FUMES, GASES OR DUSTS
POTENTIALLY GENERATED DURING THE USE OF THIS PRODUCT. REFER TO SECTION 11
FOR MORE INFORMATION.

INDICATION OF IMMEDIATE MEDICAL ATTENTION AND SPECIAL TREATMENT NEEDED:
TREATMENT: TREAT SYMPTOMATICALLY.


5. FIRE-FIGHTING MEASURES 


GENERAL FIRE HAZARDS:
AS SHIPPED, THIS PRODUCT IS NONFLAMMABLE. HOWEVER, WELDING ARC AND SPARKS
AS WELL AS OPEN FLAMES AND HOT SURFACES ASSOCIATED WITH BRAZING AND
SOLDERING CAN IGNITE COMBUSTIBLE AND FLAMMABLE MATERIALS. READ AND
UNDERSTAND AMERICAN NATIONAL STANDARD Z49.1, "SAFETY IN WELDING, CUTTING
AND ALLIED PROCESSES" AND NATIONAL FIRE PROTECTION ASSOCIATION NFPA 51B,
"STANDARD FOR FIRE PREVENTION DURING WELDING, CUTTING AND OTHER HOT WORK"
BEFORE USING THIS PRODUCT.

SUITABLE (AND UNSUITABLE) EXTINGUISHING MEDIA:

SUITABLE EXTINGUISHING MEDIA:
AS SHIPPED, THE PRODUCT WILL NOT BURN. IN CASE OF FIRE IN THE SURROUNDINGS:
USE APPROPRIATE EXTINGUISHING AGENT.

UNSUITABLE EXTINGUISHING MEDIA:
DO NOT USE WATER JET AS AN EXTINGUISHER, AS THIS WILL SPREAD THE FIRE.

SPECIFIC HAZARDS ARISING FROM THE CHEMICAL:
WELDING ARC AND SPARKS CAN IGNITE COMBUSTIBLES AND FLAMMABLE PRODUCTS.

SPECIAL PROTECTIVE EQUIPMENT AND PRECAUTIONS FOR FIREFIGHTERS:

SPECIAL FIRE FIGHTING PROCEDURES:
USE STANDARD FIREFIGHTING PROCEDURES AND CONSIDER THE HAZARDS OF OTHER
INVOLVED MATERIALS.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE-FIGHTERS:
SELECTION OF RESPIRATORY PROTECTION FOR FIRE FIGHTING:
FOLLOW THE GENERAL FIRE PRECAUTIONS INDICATED IN THE WORKPLACE.
SELF-CONTAINED BREATHING APPARATUS AND FULL PROTECTIVE CLOTHING MUST BE
WORN IN CASE OF FIRE.


6. ACCIDENTAL RELEASE MEASURES 


PERSONAL PRECAUTIONS, PROTECTIVE EQUIPMENT AND EMERGENCY PROCEDURES:
IF AIRBORNE DUST AND/OR FUME IS PRESENT, USE ADEQUATE ENGINEERING CONTROLS
AND, IF NEEDED, PERSONAL PROTECTION TO PREVENT OVEREXPOSURE. REFER TO
RECOMMENDATIONS IN SECTION 8.

METHODS AND MATERIAL FOR CONTAINMENT AND CLEANING UP:
ABSORB WITH SAND OR OTHER INERT ABSORBENT. STOP THE FLOW OF MATERIAL, IF
THIS IS WITHOUT RISK. CLEAN UP SPILLS IMMEDIATELY, OBSERVING PRECAUTIONS IN
THE PERSONAL PROTECTIVE EQUIPMENT IN SECTION 8. AVOID GENERATING DUST.
PREVENT PRODUCT FROM ENTERING ANY DRAINS, SEWERS OR WATER SOURCES. REFER
TO SECTION 13 FOR PROPER DISPOSAL.

ENVIRONMENTAL PRECAUTIONS:
AVOID RELEASE TO THE ENVIRONMENT. PREVENT FURTHER LEAKAGE OR SPILLAGE IF
SAFE TO DO SO. DO NOT CONTAMINATE WATER SOURCES OR SEWER. ENVIRONMENTAL
MANAGER MUST BE INFORMED OF ALL MAJOR SPILLAGES.


7. HANDLING AND STORAGE 


PRECAUTIONS FOR SAFE HANDLING:
PREVENT FORMATION OF DUST. PROVIDE APPROPRIATE EXHAUST VENTILATION AT
PLACES WHERE DUST IS FORMED.

READ AND UNDERSTAND THE MANUFACTURER'S INSTRUCTION AND THE PRECAUTIONARY
LABEL ON THE PRODUCT. REFER TO LINCOLN SAFETY PUBLICATIONS AT
WWW.LINCOLNELECTRIC.COM/SAFETY. SEE AMERICAN NATIONAL STANDARD Z49.1,
"SAFETY IN WELDING, CUTTING AND ALLIED PROCESSES" PUBLISHED BY THE
AMERICAN WELDING SOCIETY, HTTP://PUBS.AWS.ORG AND OSHA PUBLICATION 2206
(29CFR1910), U.S. GOVERNMENT PRINTING OFFICE, WWW.GPO.GOV.

CONDITIONS FOR SAFE STORAGE, INCLUDING ANY INCOMPATIBILITIES:
STORE IN CLOSED ORIGINAL CONTAINER IN A DRY PLACE. STORE IN ACCORDANCE WITH
LOCAL/REGIONAL/NATIONAL REGULATIONS. STORE AWAY FROM INCOMPATIBLE
MATERIALS.


8. EXPOSURE CONTROLS / PERSONAL PROTECTION 


CONTROL PARAMETERS:

OCCUPATIONAL EXPOSURE LIMITS: US

CHEMICAL IDENTITY         TYPE        EXPOSURE LIMIT   SOURCE
                                      VALUES

TITANIUM DIOXIDE          TWA         10 MG/M3         US. ACGIH THRESHOLD
(NATURALLY OCCURRING)                                  LIMIT VALUES
                                                       (12 2010)

                          IDLH        5,000 MG/M3      US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

TITANIUM DIOXIDE          PEL         15 MG/M3         US. OSHA TABLE Z-1
(NATURALLY OCCURRING) -                                LIMITS FOR AIR
TOTAL DUST.                                            CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

TITANIUM DIOXIDE          TWA         5 MG/M3          US. OSHA TABLE Z-3
(NATURALLY OCCURRING) -                                (29 CFR 1910.1000)
RESPIRABLE FRACTION.                                   (03 2016)

TITANIUM DIOXIDE          TWA         50 MILLIONS OF   US. OSHA TABLE Z-3
(NATURALLY OCCURRING) -               PARTICLES PER    (29 CFR 1910.1000)
TOTAL DUST.                           CUBIC FOOT OF    (03 2016)
                                      AIR

TITANIUM DIOXIDE          TWA         15 MILLIONS OF   US. OSHA TABLE Z-3
(NATURALLY OCCURRING) -               PARTICLES PER    (29 CFR 1910.1000)
RESPIRABLE FRACTION.                  CUBIC FOOT OF    (03 2016)
                                      AIR

TITANIUM DIOXIDE          TWA         15 MG/M3         US. OSHA TABLE Z-3
(NATURALLY OCCURRING) -                                (29 CFR 1910.1000)
TOTAL DUST.                                            (03 2016)

MICA                      TWA         20 MILLIONS OF   US. OSHA TABLE Z-3
                                      PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (2000)
                                      AIR

MICA - RESPIRABLE.        REL         3 MG/M3          US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

MICA                      IDLH        1,500 MG/M3      US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

MICA - RESPIRABLE         TWA         0.1 MG/M3        US. ACGIH THRESHOLD
FRACTION.                                              LIMIT VALUES
                                                       (01 2021)

                          PEL         5 MG/M3          US. OSHA TABLE Z-1
                                                       LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (01 2017)

MICA - TOTAL DUST.        PEL         15 MG/M3         US. OSHA TABLE Z-1
                                                       LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (01 2017)

MANGANESE - FUME. -       CEILING     5 MG/M3          US. OSHA TABLE Z-1
AS Mn                                                  LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

                          REL         1 MG/M3          US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          STEL        3 MG/M3          US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

MANGANESE - INHALABLE     TWA         0.1 MG/M3        US. ACGIH THRESHOLD
FRACTION. - AS Mn                                      LIMIT VALUES
                                                       (03 2014)

MANGANESE - RESPIRABLE    TWA         0.02 MG/M3       US. ACGIH THRESHOLD
FRACTION. - AS Mn                                      LIMIT VALUES
                                                       (03 2014)

MANGANESE                 IDLH        500 MG/M3        US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

CALCIUM CARBONATE -       REL         10 MG/M3         US. NIOSH:
TOTAL                                                  POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2010)

CALCIUM CARBONATE -       REL         5 MG/M3          US. NIOSH:
RESPIRABLE.                                            POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2010)

CALCIUM CARBONATE -       PEL         15 MG/M3         US. OSHA TABLE Z-1
TOTAL DUST.                                            LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

CALCIUM CARBONATE -       PEL         5 MG/M3          US. OSHA TABLE Z-1
RESPIRABLE FRACTION.                                   LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

CALCIUM CARBONATE -       TWA         10 MG/M3 US.     ACGIH THRESHOLD
INHALABLE PARTICLES.                                   LIMIT VALUES
                                                       (01 2021)

CALCIUM CARBONATE -       TWA         3 MG/M3          US. ACGIH THRESHOLD
RESPIRABLE PARTICLES.                                  LIMIT VALUES
                                                       (01 2021)

CALCIUM CARBONATE -       PEL         15 MG/M3         US. OSHA TABLE Z-1
TOTAL DUST.                                            LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (01 2017)

CALCIUM CARBONATE -       PEL         5 MG/M3          US. OSHA TABLE Z-1
RESPIRABLE FRACTION.                                   LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (01 2017)

                          TWA         15 MILLIONS OF   US. OSHA TABLE Z-3
                                      PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (09 2016)
                                      AIR

CALCIUM CARBONATE -       TWA         15 MG/M3         US. OSHA TABLE Z-3
TOTAL DUST.                                            (29 CFR 1910.1000)
                                                       (09 2016)

                          TWA         50 MILLIONS OF   US. OSHA TABLE Z-3
                                      PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (09 2016)
                                      AIR

CALCIUM CARBONATE -       TWA         5 MG/M3          US. OSHA TABLE Z-3
RESPIRABLE FRACTION.                                   (29 CFR 1910.1000)
                                                       (09 2016)

MAGNESITE - TOTAL         REL         10 MG/M3         US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

MAGNESITE - RESPIRABLE.   REL         5 MG/M3          US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

MAGNESITE - TOTAL DUST.   PEL         15 MG/M3         US. OSHA TABLE Z-1
                                                       LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

MAGNESITE - RESPIRABLE    PEL         5 MG/M3          US. OSHA TABLE Z-1
FRACTION.                                              LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

MAGNESITE - RESPIRABLE    TWA         3 MG/M3          US. ACGIH THRESHOLD
PARTICLES.                                             LIMIT VALUES
                                                       (01 2021)

MAGNESITE - INHALABLE     TWA         10 MG/M3         US. ACGIH THRESHOLD
PARTICLES.                                             LIMIT VALUES
                                                       (01 2021)

MAGNESITE - TOTAL DUST.   TWA         15 MG/M3         US. OSHA TABLE Z-3
                                                       (29 CFR 1910.1000)
                                                       (09 2016)

                          TWA         50 MILLIONS OF   US. OSHA TABLE Z-3
                                      PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (09 2016)
                                      AIR

MAGNESITE - RESPIRABLE    TWA         15 MILLIONS OF   US. OSHA TABLE Z-3
FRACTION.                             PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (09 2016)
                                      AIR

                          TWA         5 MG/M3          US. OSHA TABLE Z-3
                                                       (29 CFR 1910.1000)
                                                       (09 2016)

QUARTZ - RESPIRABLE.      TWA         2.4 MILLIONS OF  US. OSHA TABLE Z-3
                                      PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (2000)
                                      AIR

                          TWA         0.1 MG/M3        US. OSHA TABLE Z-3
                                                       (29 CFR 1910.1000)
                                                       (2000)

QUARTZ - RESPIRABLE       REL         0.05 MG/M3       US. NIOSH:
DUST.                                                  POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

QUARTZ - RESPIRABLE       TWA         0.05 MG/M3       US. OSHA
DUST.                                                  SPECIFICALLY
                                                       REGULATED SUBSTANCES
                                                       (29 CFR
                                                       1910.1001-1050)
                                                       (03 2016)

                          OSHA_ACT    0.025 MG/M3      US. OSHA
                                                       SPECIFICALLY
                                                       REGULATED SUBSTANCES
                                                       (29 CFR
                                                       1910.1001-1050)
                                                       (03 2016)

QUARTZ - RESPIRABLE       PEL         0.05 MG/M3       US. OSHA TABLE Z-1
DUST.                                                  LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (03 2016)

QUARTZ                    IDLH        50 MG/M3         US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

QUARTZ - RESPIRABLE       TWA         0.025 MG/M3      US. ACGIH THRESHOLD
FRACTION.                                              LIMIT VALUES
                                                       (02 2020)

IRON OXIDE - RESPIRABLE   TWA         5 MG/M3          US. ACGIH THRESHOLD
FRACTION.                                              LIMIT VALUES
                                                       (12 2010)

IRON OXIDE - FUME.        PEL         10 MG/M3         US. OSHA TABLE Z-1
                                                       LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

IRON OXIDE - DUST AND     REL         5 MG/M3          US. NIOSH:
FUME. - AS Fe                                          POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

IRON OXIDE                IDLH        2,500 MG/M3      US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

ZIRCONIUM OXIDE - AS Zr   STEL        10 MG/M3         US. ACGIH THRESHOLD
                                                       LIMIT VALUES
                                                       (12 2010)

                          TWA         5 MG/M3          US. ACGIH THRESHOLD
                                                       LIMIT VALUES
                                                       (12 2010)

                          REL         5 MG/M3          US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          STEL        10 MG/M3         US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          PEL         5 MG/M3          US. OSHA TABLE Z-1
                                                       LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

ZIRCONIUM OXIDE           IDLH        25 MG/M3         US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

ZIRCONIUM OXIDE -         TWA         3 MG/M3          US. ACGIH THRESHOLD
RESPIRABLE PARTICLES.                                  LIMIT VALUES
                                                       (01 2021)

ZIRCONIUM OXIDE -         TWA         10 MG/M3         US. ACGIH THRESHOLD
INHALABLE PARTICLES.                                   LIMIT VALUES
                                                       (01 2021)

ZIRCONIUM OXIDE -         TWA         5 MG/M3          US. OSHA TABLE Z-3
RESPIRABLE FRACTION.                                   (29 CFR 1910.1000)
                                                       (03 2016)

                          TWA         15 MILLIONS OF   US. OSHA TABLE Z-3
                                      PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (03 2016)
                                      AIR

ZIRCONIUM OXIDE -         TWA         15 MG/M3         US. OSHA TABLE Z-3
TOTAL DUST.                                            (29 CFR 1910.1000)
                                                       (03 2016)

                          TWA         50 MILLIONS OF   US. OSHA TABLE Z-3
                                      PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (03 2016)
                                      AIR

ALUMINUM OXIDE -          TWA         1 MG/M3          US. ACGIH THRESHOLD
RESPIRABLE FRACTION.                                   LIMIT VALUES
                                                       (12 2010)

                          PEL         5 MG/M3          US. OSHA TABLE Z-1
                                                       LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

ALUMINUM OXIDE -          PEL         15 MG/M3         US. OSHA TABLE Z-1
TOTAL DUST.                                            LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

ALUMINUM OXIDE -          TWA         15 MILLIONS OF   US. OSHA TABLE Z-3
RESPIRABLE FRACTION.                  PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (03 2016)
                                      AIR

                          TWA         5 MG/M3          US. OSHA TABLE Z-3
                                                       (29 CFR 1910.1000)
                                                       (03 2016)

ALUMINUM OXIDE -          TWA         15 MG/M3         US. OSHA TABLE Z-3
TOTAL DUST.                                            (29 CFR 1910.1000)
                                                       (03 2016)

                          TWA         50 MILLIONS OF   US. OSHA TABLE Z-3
                                      PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (03 2016)
                                      AIR

ALUMINUM OXIDE -          TWA         10 MG/M3         US. ACGIH THRESHOLD
INHALABLE PARTICLES.                                   LIMIT VALUES
                                                       (01 2021)

ALUMINUM OXIDE -          TWA         3 MG/M3          US. ACGIH THRESHOLD
RESPIRABLE PARTICLES.                                  LIMIT VALUES
                                                       (01 2021)

SILICON DIOXIDE           TWA         20 MILLIONS OF   US. OSHA TABLE Z-3
(AMORPHOUS)                           PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (2000)
                                      AIR

                          TWA         0.8 MG/M3        US. OSHA TABLE Z-3
                                                       (29 CFR 1910.1000)
                                                       (2000)

                          REL         6 MG/M3          US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          IDLH        3,000 MG/M3      US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

SILICON DIOXIDE           TWA         10 MG/M3         US. ACGIH THRESHOLD
(AMORPHOUS) -                                          LIMIT VALUES
INHALABLE PARTICLES.                                   (01 2021)

SILICON DIOXIDE           TWA         3 MG/M3          US. ACGIH THRESHOLD
(AMORPHOUS) -                                          LIMIT VALUES
RESPIRABLE PARTICLES.                                  (01 2021)

SILICON DIOXIDE           TWA         50 MILLIONS OF   US. OSHA TABLE Z-3
(AMORPHOUS) -                         PARTICLES PER    (29 CFR 1910.1000)
TOTAL DUST.                           CUBIC FOOT OF    (09 2016)
                                      AIR

SILICON DIOXIDE           TWA         15 MILLIONS OF   US. OSHA TABLE Z-3
(AMORPHOUS) -                         PARTICLES PER    (29 CFR 1910.1000)
RESPIRABLE FRACTION.                  CUBIC FOOT OF    (09 2016)
                                      AIR

                          TWA         5 MG/M3          US. OSHA TABLE Z-3
                                                       (29 CFR 1910.1000)
                                                       (09 2016)

SILICON DIOXIDE           TWA         15 MG/M3         US. OSHA TABLE Z-3
(AMORPHOUS) -                                          (29 CFR 1910.1000)
TOTAL DUST.                                            (09 2016)

SILICON - TOTAL DUST.     PEL         15 MG/M3         US. OSHA TABLE Z-1
                                                       LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

SILICON - RESPIRABLE      PEL         5 MG/M3          US. OSHA TABLE Z-1
FRACTION.                                              LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

SILICON - RESPIRABLE.     REL         5 MG/M3          US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

SILICON - TOTAL           REL         10 MG/M3         US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

SILICON - RESPIRABLE      TWA         3 MG/M3          US. ACGIH THRESHOLD
PARTICLES.                                             LIMIT VALUES
                                                       (01 2021)

SILICON - INHALABLE       TWA         10 MG/M3         US. ACGIH THRESHOLD
PARTICLES.                                             LIMIT VALUES
                                                       (01 2021)

SILICON - RESPIRABLE      TWA         5 MG/M3          US. OSHA TABLE Z-3
FRACTION.                                              (29 CFR 1910.1000)
                                                       (09 2016)

SILICON - TOTAL DUST.     TWA         50 MILLIONS OF   US. OSHA TABLE Z-3
                                      PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (09 2016)
                                      AIR

                          TWA         15 MG/M3         US. OSHA TABLE Z-3
                                                       (29 CFR 1910.1000)
                                                       (09 2016)

SILICON - RESPIRABLE      TWA         15 MILLIONS OF   US. OSHA TABLE Z-3
FRACTION.                             PARTICLES PER    (29 CFR 1910.1000)
                                      CUBIC FOOT OF    (09 2016)
                                      AIR

VANADIUM PENTOXIDE -      TWA         0.05 MG/M3       US. ACGIH THRESHOLD
INHALABLE FRACTION. -                                  LIMIT VALUES
AS V                                                   (12 2010)

VANADIUM PENTOXIDE -      CEILING     0.1 MG/M3        US. OSHA TABLE Z-1
FUME. - AS V2O5                                        LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

VANADIUM PENTOXIDE -      CEILING     0.5 MG/M3        US. OSHA TABLE Z-1
RESPIRABLE DUST. -                                     LIMITS FOR AIR
AS V2O5                                                CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

VANADIUM PENTOXIDE -      CEIL_TIME   0.05 MG/M3       US. NIOSH:
FUME. - AS V                                           POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

VANADIUM PENTOXIDE -      CEIL_TIME   0.05 MG/M3       US. NIOSH:
DUST. - AS V                                           POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

VANADIUM PENTOXIDE        IDLH        35 MG/M3         US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

OCCUPATIONAL EXPOSURE LIMITS: CANADA

CHEMICAL IDENTITY         TYPE        EXPOSURE LIMIT   SOURCE
                                      VALUES

TITANIUM DIOXIDE          TWA         10 MG/M3         CANADA. ALBERTA OELS
(NATURALLY OCCURRING)                                  (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

TITANIUM DIOXIDE          TWA         10 MG/M3         CANADA. BRITISH
(NATURALLY OCCURRING) -                                COLUMBIA OELS.
TOTAL DUST.                                            (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

TITANIUM DIOXIDE          TWA         3 MG/M3          CANADA. BRITISH
(NATURALLY OCCURRING) -                                COLUMBIA OELS.
RESPIRABLE FRACTION.                                   (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

TITANIUM DIOXIDE          TWA         10 MG/M3         CANADA. MANITOBA
(NATURALLY OCCURRING)                                  OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2011)

                          TWA         10 MG/M3         CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (11 2010)

                          8 HR ACL    10 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  20 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

TITANIUM DIOXIDE          TWA         10 MG/M3         CANADA. QUEBEC OELS.
(NATURALLY OCCURRING) -                                (MINISTRY OF LABOR -
TOTAL DUST.                                            REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

MICA - RESPIRABLE.        TWA         3 MG/M3          CANADA. ALBERTA OELS
                                                       (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          TWA         3 MG/M3          CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

MICA - RESPIRABLE         TWA         3 MG/M3          CANADA. ONTARIO
FRACTION.                                              OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (11 2010)

                          8 HR ACL    3 MG/M3          CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  6 MG/M3          CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

MICA - RESPIRABLE DUST.   TWA         3 MG/M3          CANADA. QUEBEC OELS.
                                                       (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

MICA - RESPIRABLE         TWA         0.1 MG/M3        CANADA. MANITOBA
FRACTION.                                              OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

MANGANESE - AS Mn         TWA         0.2 MG/M3        CANADA. ALBERTA OELS
                                                       (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          8 HR ACL    0.2 MG/M3        CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  0.6 MG/M3        CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

MANGANESE - RESPIRABLE    TWA         0.02 MG/M3       CANADA. MANITOBA
FRACTION. - AS Mn                                      OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2014)

MANGANESE - INHALABLE     TWA         0.1 MG/M3        CANADA. MANITOBA
FRACTION. - AS Mn                                      OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2014)

MANGANESE - AS Mn         TWA         0.2 MG/M3        CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (06 2015)

MANGANESE - FUME,         TWA         0.2 MG/M3        CANADA. QUEBEC OELS.
TOTAL DUST. - AS Mn                                    (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

MANGANESE -               TWA         0.02 MG/M3       CANADA. BRITISH
RESPIRABLE. - AS Mn                                    COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2018)

MANGANESE - TOTAL -       TWA         0.2 MG/M3        CANADA. BRITISH
AS Mn                                                  COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2018)

CALCIUM CARBONATE         TWA         10 MG/M3         CANADA. ALBERTA OELS
                                                       (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

CALCIUM CARBONATE -       STEL        20 MG/M3         CANADA. BRITISH
TOTAL DUST.                                            COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

CALCIUM CARBONATE -       TWA         3 MG/M3          CANADA. BRITISH
RESPIRABLE FRACTION.                                   COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

CALCIUM CARBONATE -       TWA         10 MG/M3         CANADA. BRITISH
TOTAL DUST.                                            COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

CALCIUM CARBONATE         8 HR ACL    10 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  20 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

CALCIUM CARBONATE -       TWA         10 MG/M3         CANADA. QUEBEC OELS.
TOTAL DUST.                                            (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

                          TWA         10 MG/M3         CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

CALCIUM CARBONATE -       TWA         3 MG/M3          CANADA. BRITISH
RESPIRABLE FRACTION.                                   COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

CALCIUM CARBONATE -       TWA         3 MG/M3          CANADA. MANITOBA
RESPIRABLE PARTICLES.                                  OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

CALCIUM CARBONATE -       TWA         10 MG/M3         CANADA. MANITOBA
INHALABLE PARTICLES.                                   OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

CALCIUM CARBONATE -       TWA         3 MG/M3          CANADA. ONTARIO
RESPIRABLE FRACTION.                                   OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

CALCIUM CARBONATE -       TWA         10 MG/M3         CANADA. ONTARIO
INHALABLE PARTICLES.                                   OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

CALCIUM CARBONATE -       TWA         10 MG/M3         CANADA. ONTARIO
INHALABLE FRACTION.                                    OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

CALCIUM CARBONATE -       TWA         3 MG/M3          CANADA. ONTARIO
RESPIRABLE PARTICLES.                                  OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

MAGNESITE - TOTAL DUST.   TWA         10 MG/M3         CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (07 2010)

MAGNESITE                 8 HR ACL    10 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  20 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

MAGNESITE - TOTAL DUST.   TWA         10 MG/M3         CANADA. QUEBEC OELS.
                                                       (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

MAGNESITE - RESPIRABLE    TWA         3 MG/M3          CANADA. ALBERTA OELS
PARTICLES.                                             (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (01 2019)

MAGNESITE - TOTAL         TWA         10 MG/M3         CANADA. ALBERTA OELS
PARTICULATE.                                           (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (01 2019)

MAGNESITE - RESPIRABLE    TWA         3 MG/M3          CANADA. BRITISH
FRACTION.                                              COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

MAGNESITE - TOTAL DUST.   TWA         10 MG/M3         CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

MAGNESITE - RESPIRABLE    TWA         3 MG/M3          CANADA. MANITOBA
PARTICLES.                                             OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

MAGNESITE - INHALABLE     TWA         10 MG/M3         CANADA. MANITOBA
PARTICLES.                                             OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

MAGNESITE - RESPIRABLE    TWA         3 MG/M3          CANADA. ONTARIO
PARTICLES.                                             OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

MAGNESITE - RESPIRABLE    TWA         3 MG/M3          CANADA. ONTARIO
FRACTION.                                              OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

MAGNESITE - INHALABLE     TWA         10 MG/M3         CANADA. ONTARIO
PARTICLES.                                             OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

MAGNESITE - INHALABLE     TWA         10 MG/M3         CANADA. ONTARIO
FRACTION.                                              OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

QUARTZ - RESPIRABLE       TWA         0.025 MG/M3      CANADA. ALBERTA OELS
PARTICLES.                                             (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

QUARTZ - RESPIRABLE       8 HR ACL    0.05 MG/M3       CANADA. SASKATCHEWAN
FRACTION.                                              OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          TWA         0.10 MG/M3       CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (06 2015)

QUARTZ - RESPIRABLE       TWA         0.1 MG/M3        CANADA. QUEBEC OELS.
DUST.                                                  (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

QUARTZ - RESPIRABLE       TWA         0.025 MG/M3      CANADA. BRITISH
FRACTION.                                              COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

                          TWA         0.025 MG/M3      CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

IRON OXIDE - RESPIRABLE.  TWA         5 MG/M3          CANADA. ALBERTA OELS
                                                       (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

IRON OXIDE - TOTAL DUST.  TWA         10 MG/M3         CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

IRON OXIDE - DUST. -      TWA         5 MG/M3          CANADA. BRITISH
AS Fe                                                  COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

IRON OXIDE - FUME. -      STEL        10 MG/M3         CANADA. BRITISH
AS Fe                                                  COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

IRON OXIDE - RESPIRABLE   TWA         3 MG/M3          CANADA. BRITISH
FRACTION.                                              COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

IRON OXIDE - FUME. -      TWA         5 MG/M3          CANADA. BRITISH
AS Fe                                                  COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

IRON OXIDE -              TWA         5 MG/M3          CANADA. MANITOBA
RESPIRABLE FRACTION.                                   OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2011)

                          TWA         5 MG/M3          CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (11 2010)

IRON OXIDE                8 HR ACL    10 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  20 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

IRON OXIDE - DUST AND     15 MIN ACL  10 MG/M3         CANADA. SASKATCHEWAN
FUME. - AS Fe                                          OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          8 HR ACL    5 MG/M3          CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          TWA         5 MG/M3          CANADA. QUEBEC OELS.
                                                       (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

ZIRCONIUM OXIDE -         TWA         5 MG/M3          CANADA. ALBERTA OELS
AS Zr                                                  (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          STEL        10 MG/M3         CANADA. ALBERTA OELS
                                                       (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          STEL        10 MG/M3         CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          TWA         5 MG/M3          CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          STEL        10 MG/M3         CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2011)

                          TWA         5 MG/M3          CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2011)

                          TWA         5 MG/M3          CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (11 2010)

                          STEL        10 MG/M3         CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (11 2010)

                          8 HR ACL    5 MG/M3          CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  10 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          TWA         5 MG/M3          CANADA. QUEBEC OELS.
                                                       (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

                          STEL        10 MG/M3         CANADA. QUEBEC OELS.
                                                       (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

ZIRCONIUM OXIDE -         TWA         3 MG/M3          CANADA. ALBERTA OELS
RESPIRABLE PARTICLES.                                  (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (01 2019)

ZIRCONIUM OXIDE -         TWA         10 MG/M3         CANADA. ALBERTA OELS
TOTAL PARTICULATE.                                     (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (01 2019)

ZIRCONIUM OXIDE -         TWA         3 MG/M3          CANADA. BRITISH
RESPIRABLE FRACTION.                                   COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

ZIRCONIUM OXIDE -         TWA         10 MG/M3         CANADA. BRITISH
TOTAL DUST.                                            COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

ZIRCONIUM OXIDE -         TWA         3 MG/M3          CANADA. MANITOBA
RESPIRABLE PARTICLES.                                  OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

ZIRCONIUM OXIDE -         TWA         10 MG/M3         CANADA. MANITOBA
INHALABLE PARTICLES.                                   OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

ZIRCONIUM OXIDE -         TWA         3 MG/M3          CANADA. ONTARIO
RESPIRABLE FRACTION.                                   OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

ZIRCONIUM OXIDE -         TWA         10 MG/M3         CANADA. ONTARIO
INHALABLE PARTICLES.                                   OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

ZIRCONIUM OXIDE -         TWA         3 MG/M3          CANADA. ONTARIO
RESPIRABLE PARTICLES.                                  OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

ZIRCONIUM OXIDE -         TWA         10 MG/M3         CANADA. ONTARIO
INHALABLE FRACTION.                                    OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

                          15 MIN ACL  20 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (06 2016)

ZIRCONIUM OXIDE -         8 HR ACL    3 MG/M3          CANADA. SASKATCHEWAN
RESPIRABLE FRACTION.                                   OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (06 2016)

ZIRCONIUM OXIDE -         8 HR ACL    10 MG/M3         CANADA. SASKATCHEWAN
INHALABLE FRACTION.                                    OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (06 2016)

ZIRCONIUM OXIDE -         15 MIN ACL  6 MG/M3          CANADA. SASKATCHEWAN
RESPIRABLE FRACTION.                                   OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (06 2016)

ZIRCONIUM OXIDE -         TWA         10 MG/M3         CANADA. QUEBEC OELS.
TOTAL DUST.                                            (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (04 2019)

ALUMINUM OXIDE            TWA         10 MG/M3         CANADA. ALBERTA OELS
                                                       (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

ALUMINUM OXIDE -          TWA         1 MG/M3          CANADA. MANITOBA
RESPIRABLE FRACTION.                                   OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2011)

                          TWA         3 MG/M3          CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (06 2015)

                          TWA         1 MG/M3          CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (11 2010)

ALUMINUM OXIDE -          TWA         10 MG/M3         CANADA. ONTARIO
INHALABLE FRACTION.                                    OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (06 2015)

ALUMINUM OXIDE            8 HR ACL    10 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  20 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

ALUMINUM OXIDE -          TWA         10 MG/M3         CANADA. QUEBEC OELS.
TOTAL DUST. - AS Al                                    (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

ALUMINUM OXIDE -          TWA         10 MG/M3         CANADA. BRITISH
TOTAL DUST.                                            COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

ALUMINUM OXIDE -          TWA         3 MG/M3          CANADA. BRITISH
RESPIRABLE FRACTION.                                   COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

ALUMINUM OXIDE -          TWA         1.0 MG/M3        CANADA. BRITISH
RESPIRABLE.                                            COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

ALUMINUM OXIDE -          TWA         10 MG/M3         CANADA. MANITOBA
INHALABLE PARTICLES.                                   OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

ALUMINUM OXIDE -          TWA         3 MG/M3          CANADA. MANITOBA
RESPIRABLE PARTICLES.                                  OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

                          TWA         3 MG/M3          CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

ALUMINUM OXIDE -          TWA         10 MG/M3         CANADA. ONTARIO
INHALABLE PARTICLES.                                   OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

SILICON DIOXIDE           TWA         10 MG/M3         CANADA. ONTARIO
(AMORPHOUS)                                            OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (07 2010)

SILICON DIOXIDE           TWA         10 MG/M3         CANADA. ALBERTA OELS
(AMORPHOUS) - TOTAL                                    (OCCUPATIONAL HEALTH
PARTICULATE.                                           & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (01 2019)

SILICON DIOXIDE           TWA         3 MG/M3          CANADA. ALBERTA OELS
(AMORPHOUS) -                                          (OCCUPATIONAL HEALTH
RESPIRABLE PARTICLES.                                  & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (01 2019)

SILICON DIOXIDE           TWA         3 MG/M3          CANADA. BRITISH
(AMORPHOUS) -                                          COLUMBIA OELS.
RESPIRABLE FRACTION.                                   (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

SILICON DIOXIDE           TWA         10 MG/M3         CANADA. BRITISH
(AMORPHOUS) -                                          COLUMBIA OELS.
TOTAL DUST.                                            (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

SILICON DIOXIDE           TWA         3 MG/M3          CANADA. MANITOBA
(AMORPHOUS) -                                          OELS (REG. 217/2006,
RESPIRABLE PARTICLES.                                  THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

SILICON DIOXIDE           TWA         10 MG/M3         CANADA. MANITOBA
(AMORPHOUS) -                                          OELS (REG. 217/2006,
INHALABLE PARTICLES.                                   THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

SILICON DIOXIDE           TWA         3 MG/M3          CANADA. ONTARIO
(AMORPHOUS) -                                          OELS. (CONTROL OF
RESPIRABLE FRACTION.                                   EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

SILICON DIOXIDE           TWA         10 MG/M3         CANADA. ONTARIO
(AMORPHOUS) -                                          OELS. (CONTROL OF
INHALABLE PARTICLES.                                   EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

SILICON DIOXIDE           TWA         10 MG/M3         CANADA. ONTARIO
(AMORPHOUS) -                                          OELS. (CONTROL OF
INHALABLE FRACTION.                                    EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

SILICON DIOXIDE           TWA         3 MG/M3          CANADA. ONTARIO
(AMORPHOUS) -                                          OELS. (CONTROL OF
RESPIRABLE PARTICLES.                                  EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

SILICON DIOXIDE           15 MIN ACL  20 MG/M3         CANADA. SASKATCHEWAN
(AMORPHOUS) -                                          OELS (OCCUPATIONAL
INHALABLE FRACTION.                                    HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (06 2016)

SILICON DIOXIDE           15 MIN ACL  6 MG/M3          CANADA. SASKATCHEWAN
(AMORPHOUS) -                                          OELS (OCCUPATIONAL
RESPIRABLE FRACTION.                                   HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (06 2016)

                          8 HR ACL    3 MG/M3          CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (06 2016)

SILICON DIOXIDE           8 HR ACL    10 MG/M3         CANADA. SASKATCHEWAN
(AMORPHOUS) -                                          OELS (OCCUPATIONAL
INHALABLE FRACTION.                                    HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (06 2016)

SILICON DIOXIDE           TWA         10 MG/M3         CANADA. QUEBEC OELS.
(AMORPHOUS) -                                          (MINISTRY OF LABOR -
TOTAL DUST.                                            REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (03 2020)

SILICON - TOTAL DUST.     TWA         10 MG/M3         CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (07 2010)

SILICON                   8 HR ACL    10 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  20 MG/M3         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

SILICON - TOTAL DUST.     TWA         10 MG/M3         CANADA. QUEBEC OELS.
                                                       (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

SILICON - RESPIRABLE      TWA         3 MG/M3          CANADA. ALBERTA OELS
PARTICLES.                                             (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (01 2019)

SILICON - TOTAL           TWA         10 MG/M3         CANADA. ALBERTA OELS
PARTICULATE.                                           (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (01 2019)

SILICON - TOTAL DUST.     TWA         10 MG/M3         CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

SILICON - RESPIRABLE      TWA         3 MG/M3          CANADA. BRITISH
FRACTION.                                              COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2020)

SILICON - INHALABLE       TWA         10 MG/M3         CANADA. MANITOBA
PARTICLES.                                             OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

SILICON - RESPIRABLE      TWA         3 MG/M3          CANADA. MANITOBA
PARTICLES.                                             OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (01 2021)

SILICON - RESPIRABLE      TWA         3 MG/M3          CANADA. ONTARIO
FRACTION.                                              OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

SILICON - INHALABLE       TWA         10 MG/M3         CANADA. ONTARIO
FRACTION.                                              OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

SILICON - INHALABLE       TWA         10 MG/M3         CANADA. ONTARIO
PARTICLES.                                             OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

SILICON - RESPIRABLE      TWA         3 MG/M3          CANADA. ONTARIO
PARTICLES.                                             OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (01 2020)

VANADIUM PENTOXIDE -      TWA         0.05 MG/M3       CANADA. ALBERTA OELS
RESPIRABLE PARTICULATE                                 (OCCUPATIONAL HEALTH
OR FUME. - AS V2O5                                     & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

VANADIUM PENTOXIDE -      TWA         0.05 MG/M3       CANADA. MANITOBA
INHALABLE FRACTION. -                                  OELS (REG. 217/2006,
AS V                                                   THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2011)

                          TWA         0.05 MG/M3       CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (11 2010)

VANADIUM PENTOXIDE -      8 HR ACL    0.05 MG/M3       CANADA. SASKATCHEWAN
RESPIRABLE FRACTION                                    OELS (OCCUPATIONAL
AND DUST OR FUME. -                                    HEALTH AND SAFETY
AS V2O5                                                REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  0.15 MG/M3       CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

VANADIUM PENTOXIDE -      TWA         0.05 MG/M3       CANADA. BRITISH
INHALABLE - AS V                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (06 2017)

VANADIUM PENTOXIDE -      TWA         0.05 MG/M3       CANADA. QUEBEC OELS.
INHALABLE DUST. -                                      (MINISTRY OF LABOR -
AS V2O5                                                REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (03 2020)

OCCUPATIONAL EXPOSURE LIMITS: MEXICO

CHEMICAL IDENTITY         TYPE        EXPOSURE LIMIT   SOURCE
                                      VALUES

IRON - AS Fe              VLE-PPT     1 MG/M3          MEXICO. OELS.
                                                       (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

TITANIUM DIOXIDE          VLE-PPT     10 MG/M3         MEXICO. OELS.
(NATURALLY OCCURRING)                                  (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

MICA - RESPIRABLE         VLE-PPT     3 MG/M3          MEXICO. OELS.
FRACTION.                                              (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

MANGANESE - AS Mn         VLE-PPT     0.2 MG/M3        MEXICO. OELS.
                                                       (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

CALCIUM CARBONATE -       VLE-PPT     3 MG/M3          MEXICO. OELS.
RESPIRABLE FRACTION.                                   (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

CALCIUM CARBONATE -       VLE-PPT     10 MG/M3         MEXICO. OELS.
INHALABLE FRACTION.                                    (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

MAGNESITE - RESPIRABLE    VLE-PPT     3 MG/M3          MEXICO. OELS.
FRACTION.                                              (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

MAGNESITE - INHALABLE     VLE-PPT     10 MG/M3         MEXICO. OELS.
FRACTION.                                              (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

QUARTZ - RESPIRABLE       VLE-PPT     0.025 MG/M3      MEXICO. OELS.
FRACTION.                                              (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

IRON OXIDE - RESPIRABLE   VLE-PPT     5 MG/M3          MEXICO. OELS.
FRACTION.                                              (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

ZIRCONIUM OXIDE -         VLE-PPT     5 MG/M3          MEXICO. OELS.
AS Zr                                                  (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

                          VLE-CT      10 MG/M3         MEXICO. OELS.
                                                       (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

ZIRCONIUM OXIDE -         VLE-PPT     3 MG/M3          MEXICO. OELS.
RESPIRABLE FRACTION.                                   (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

ZIRCONIUM OXIDE -         VLE-PPT     10 MG/M3         MEXICO. OELS.
INHALABLE FRACTION.                                    (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

ALUMINUM OXIDE            VLE-PPT     10 MG/M3         MEXICO. OELS.
                                                       (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

SILICON DIOXIDE           VLE-PPT     10 MG/M3         MEXICO. OELS.
(AMORPHOUS) -                                          (NOM-010-STPS-2014
INHALABLE FRACTION.                                    CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

SILICON DIOXIDE           VLE-PPT     3 MG/M3          MEXICO. OELS.
(AMORPHOUS) -                                          (NOM-010-STPS-2014
RESPIRABLE FRACTION.                                   CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

SILICON - INHALABLE       VLE-PPT     10 MG/M3         MEXICO. OELS.
FRACTION.                                              (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

SILICON - RESPIRABLE      VLE-PPT     3 MG/M3          MEXICO. OELS.
FRACTION.                                              (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

VANADIUM PENTOXIDE -      VLE-PPT     0.05 MG/M3       MEXICO. OELS.
INHALABLE FRACTION. -                                  (NOM-010-STPS-2014
AS V                                                   CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

BIOLOGICAL LIMIT VALUES: MEXICO

CHEMICAL IDENTITY             EXPOSURE LIMIT VALUES       SOURCE

VANADIUM PENTOXIDE            50 (MICRO)G/G               MX IBE (06 2012)
(VANADIUM: SAMPLING TIME:     (CREATININE IN URINE)
END OF SHIFT AT END OF
WORK WEEK.)

ADDITIONAL EXPOSURE LIMITS UNDER THE CONDITIONS OF USE: US

CHEMICAL IDENTITY         TYPE        EXPOSURE LIMIT   SOURCE
                                      VALUES

CARBON DIOXIDE            TWA         5,000 PPM        US. ACGIH THRESHOLD
                                                       LIMIT VALUES
                                                       (12 2010)

                          STEL        30,000 PPM       US. ACGIH THRESHOLD
                                                       LIMIT VALUES
                                                       (12 2010)

                          PEL         5,000 PPM        US. OSHA TABLE Z-1
                                      9,000 MG/M3      LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

                          STEL        30,000 PPM       US. NIOSH:
                                      54,000 MG/M3     POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          REL         5,000 PPM        US. NIOSH:
                                      9,000 MG/M3      POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          IDLH        40,000 PPM       US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

CARBON MONOXIDE           TWA         25 PPM           US. ACGIH THRESHOLD
                                                       LIMIT VALUES
                                                       (12 2010)

                          PEL         50 PPM           US. OSHA TABLE Z-1
                                      55 MG/M3         LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

                          REL         35 PPM           US. NIOSH:
                                      40 MG/M3         POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          CEIL_TIME   200 PPM          US. NIOSH:
                                      229 MG/M3        POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          IDLH        1,200 PPM        US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

NITROGEN DIOXIDE          TWA         0.2 PPM          US. ACGIH THRESHOLD
                                                       LIMIT VALUES
                                                       (02 2012)

                          CEILING     5 PPM            US. OSHA TABLE Z-1
                                      9 MG/M3          LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

                          STEL        1 PPM            US. NIOSH:
                                      1.8 MG/M3        POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          IDLH        20 PPM           US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

                          IDLH        13 PPM           US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

OZONE                     PEL         0.1 PPM          US. OSHA TABLE Z-1
                                      0.2 MG/M3        LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

                          CEIL_TIME   0.1 PPM          US. NIOSH:
                                      0.2 MG/M3        POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          TWA         0.05 PPM         US. ACGIH THRESHOLD
                                                       LIMIT VALUES
                                                       (03 2014)

                          TWA         0.10 PPM         US. ACGIH THRESHOLD
                                                       LIMIT VALUES
                                                       (03 2014)

                          TWA         0.08 PPM         US. ACGIH THRESHOLD
                                                       LIMIT VALUES
                                                       (03 2014)

                          IDLH        5 PPM            US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

                          TWA         0.20 PPM         US. ACGIH THRESHOLD
                                                       LIMIT VALUES
                                                       (02 2020)

MANGANESE - FUME. -       CEILING     5 MG/M3          US. OSHA TABLE Z-1
AS Mn                                                  LIMITS FOR AIR
                                                       CONTAMINANTS (29 CFR
                                                       1910.1000) (02 2006)

                          REL         1 MG/M3          US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

                          STEL        3 MG/M3          US. NIOSH:
                                                       POCKET GUIDE TO
                                                       CHEMICAL HAZARDS, AS
                                                       AMENDED (2005)

MANGANESE - INHALABLE     TWA         0.1 MG/M3        US. ACGIH THRESHOLD
FRACTION. - AS Mn                                      LIMIT VALUES
                                                       (03 2014)

MANGANESE - RESPIRABLE    TWA         0.02 MG/M3       US. ACGIH THRESHOLD
FRACTION. - AS Mn                                      LIMIT VALUES
                                                       (03 2014)

MANGANESE                 IDLH        500 MG/M3        US. NIOSH.
                                                       IMMEDIATELY
                                                       DANGEROUS TO LIFE OR
                                                       HEALTH (IDLH) VALUES
                                                       (10 2017)

ADDITIONAL EXPOSURE LIMITS UNDER THE CONDITIONS OF USE: CANADA

CHEMICAL IDENTITY         TYPE        EXPOSURE LIMIT   SOURCE
                                      VALUES

CARBON DIOXIDE            STEL        30,000 PPM       CANADA. ALBERTA OELS
                                      54,000 MG/M3     (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          TWA         5,000 PPM        CANADA. ALBERTA OELS
                                      9,000 MG/M3      (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          TWA         5,000 PPM        CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          STEL        15,000 PPM       CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          TWA         5,000 PPM        CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2011)

                          STEL        30,000 PPM       CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2011)

                          STEL        30,000 PPM       CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (11 2010)

                          TWA         5,000 PPM        CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (11 2010)

                          8 HR ACL    5,000 PPM        CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  30,000 PPM       CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          TWA         5,000 PPM        CANADA. QUEBEC OELS.
                                      9,000 MG/M3      (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

                          STEL        30,000 PPM       CANADA. QUEBEC OELS.
                                      54,000 MG/M3     (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

CARBON MONOXIDE           TWA         25 PPM           CANADA. ALBERTA OELS
                                      29 MG/M3         (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          TWA         25 PPM           CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          STEL        100 PPM          CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          TWA         25 PPM           CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2011)

                          TWA         25 PPM           CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (07 2010)

                          8 HR ACL    25 PPM           CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  190 PPM          CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          TWA         35 PPM           CANADA. QUEBEC OELS.
                                      40 MG/M3         (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

                          STEL        200 PPM          CANADA. QUEBEC OELS.
                                      230 MG/M3        (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

NITROGEN DIOXIDE          STEL        5 PPM            CANADA. ALBERTA OELS
                                      9.4 MG/M3        (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          TWA         3 PPM            CANADA. ALBERTA OELS
                                      5.6 MG/M3        (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          CEILING     1 PPM            CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          TWA         0.2 PPM          CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2012)

                          STEL        5 PPM            CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS),
                                                       AS AMENDED (11 2010)

                          TWA         3 PPM            CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (11 2010)

                          8 HR ACL    3 PPM            CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  5 PPM            CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          TWA         3 PPM            CANADA. QUEBEC OELS.
                                      5.6 MG/M3        (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

OZONE                     STEL        0.3 PPM          CANADA. ALBERTA OELS
                                      0.6 MG/M3        (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          TWA         0.1 PPM          CANADA. ALBERTA OELS
                                      0.2 MG/M3        (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          TWA         0.05 PPM         CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          TWA         0.1 PPM          CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          TWA         0.08 PPM         CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          TWA         0.2 PPM          CANADA. BRITISH
                                                       COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2007)

                          TWA         0.1 PPM          CANADA. ONTARIO
                                      0.2 MG/M3        OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (07 2010)

                          STEL        0.3 PPM          CANADA. ONTARIO
                                      0.6 MG/M3        OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (07 2010)

                          15 MIN      0.15 PPM         CANADA. SASKATCHEWAN
                          ACL                          OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          8 HR ACL    0.05 PPM         CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          CEILING     0.1 PPM          CANADA. QUEBEC OELS.
                                      0.2 MG/M3        (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (12 2008)

                          TWA         0.05 PPM         CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2014)

                          TWA         0.08 PPM         CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2014)

                          TWA         0.10 PPM         CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2014)

                          TWA         0.20 PPM         CANADA. MANITOBA
                                                       OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (02 2020)

MANGANESE - AS Mn         TWA         0.2 MG/M3        CANADA. ALBERTA OELS
                                                       (OCCUPATIONAL HEALTH
                                                       & SAFETY CODE,
                                                       SCHEDULE 1,
                                                       TABLE 2), AS AMENDED
                                                       (07 2009)

                          8 HR ACL    0.2 MG/M3        CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

                          15 MIN ACL  0.6 MG/M3        CANADA. SASKATCHEWAN
                                                       OELS (OCCUPATIONAL
                                                       HEALTH AND SAFETY
                                                       REGULATIONS, 1996,
                                                       TABLE 21), AS
                                                       AMENDED (05 2009)

MANGANESE - RESPIRABLE    TWA         0.02 MG/M3       CANADA. MANITOBA
FRACTION. - AS Mn                                      OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2014)

MANGANESE - INHALABLE     TWA         0.1 MG/M3        CANADA. MANITOBA
FRACTION. - AS Mn                                      OELS (REG. 217/2006,
                                                       THE WORKPLACE SAFETY
                                                       AND HEALTH ACT), AS
                                                       AMENDED (03 2014)

MANGANESE - AS Mn         TWA         0.2 MG/M3        CANADA. ONTARIO
                                                       OELS. (CONTROL OF
                                                       EXPOSURE TO
                                                       BIOLOGICAL OR
                                                       CHEMICAL AGENTS), AS
                                                       AMENDED (06 2015)

MANGANESE - FUME,         TWA         0.2 MG/M3        CANADA. QUEBEC OELS.
TOTAL DUST. - AS Mn                                    (MINISTRY OF LABOR -
                                                       REGULATION
                                                       RESPECTING
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY), AS
                                                       AMENDED (09 2017)

MANGANESE -               TWA         0.02 MG/M3       CANADA. BRITISH
RESPIRABLE. - AS Mn                                    COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2018)

MANGANESE - TOTAL -       TWA         0.2 MG/M3        CANADA. BRITISH
AS Mn                                                  COLUMBIA OELS.
                                                       (OCCUPATIONAL
                                                       EXPOSURE LIMITS FOR
                                                       CHEMICAL SUBSTANCES,
                                                       OCCUPATIONAL HEALTH
                                                       AND SAFETY
                                                       REGULATION 296/97,
                                                       AS AMENDED)
                                                       (07 2018)

ADDITIONAL EXPOSURE LIMITS UNDER THE CONDITIONS OF USE: MEXICO

CHEMICAL IDENTITY         TYPE        EXPOSURE LIMIT   SOURCE
                                      VALUES

CARBON DIOXIDE            VLE-CT      30,000 PPM       MEXICO. OELS.
                                                       (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

                          VLE-PPT     5,000 PPM        MEXICO. OELS.
                                                       (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

CARBON MONOXIDE           VLE-PPT     25 PPM           MEXICO. OELS.
                                                       (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

NITROGEN DIOXIDE          VLE-PPT     0.2 PPM          MEXICO. OELS.
                                                       (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

OZONE                     VLE-P       0.1 PPM          MEXICO. OELS.
                                                       (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

MANGANESE - AS Mn         VLE-PPT     0.2 MG/M3        MEXICO. OELS.
                                                       (NOM-010-STPS-2014
                                                       CHEMICAL POLLUTANTS
                                                       AT THE WORKPLACE;
                                                       ASSESSMENT AND
                                                       CONTROL), AS AMENDED
                                                       (04 2014)

APPROPRIATE ENGINEERING CONTROLS:

VENTILATION:
USE ENOUGH VENTILATION AND LOCAL EXHAUST AT THE ARC, FLAME OR HEAT SOURCE
TO KEEP THE FUMES AND GASES FROM THE WORKER'S BREATHING ZONE AND THE
GENERAL AREA. TRAIN THE OPERATOR TO KEEP THEIR HEAD OUT OF THE FUMES. KEEP
EXPOSURE AS LOW AS POSSIBLE.

INDIVIDUAL PROTECTION MEASURES, SUCH AS PERSONAL PROTECTIVE EQUIPMENT:

GENERAL INFORMATION:

EXPOSURE GUIDELINES:
TO REDUCE THE POTENTIAL FOR OVEREXPOSURE, USE CONTROLS SUCH AS ADEQUATE
VENTILATION AND PERSONAL PROTECTIVE EQUIPMENT (PPE). OVEREXPOSURE REFERS TO
EXCEEDING APPLICABLE LOCAL LIMITS, THE AMERICAN CONFERENCE OF GOVERNMENTAL
INDUSTRIAL HYGIENISTS (ACGIH) THRESHOLD LIMIT VALUES (TLVS) OR THE
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION'S (OSHA) PERMISSIBLE EXPOSURE
LIMITS (PELS). WORKPLACE EXPOSURE LEVELS SHOULD BE ESTABLISHED BY COMPETENT
INDUSTRIAL HYGIENE ASSESSMENTS. UNLESS EXPOSURE LEVELS ARE CONFIRMED TO BE
BELOW THE APPLICABLE LOCAL LIMIT, TLV OR PEL, WHICHEVER IS LOWER,
RESPIRATOR USE IS REQUIRED. ABSENT THESE CONTROLS, OVEREXPOSURE TO ONE OR
MORE COMPOUND CONSTITUENTS, INCLUDING THOSE IN THE FUME OR AIRBORNE
PARTICLES, MAY OCCUR RESULTING IN POTENTIAL HEALTH HAZARDS. ACCORDING TO
THE ACGIH, TLVS AND BIOLOGICAL EXPOSURE INDICES (BEIS) "REPRESENT
CONDITIONS UNDER WHICH ACGIH BELIEVES THAT NEARLY ALL WORKERS MAY BE
REPEATEDLY EXPOSED WITHOUT ADVERSE HEALTH EFFECTS." THE ACGIH FURTHER
STATES THAT THE TLV-TWA SHOULD BE USED AS A GUIDE IN THE CONTROL OF HEALTH
HAZARDS AND SHOULD NOT BE USED TO INDICATE A FINE LINE BETWEEN SAFE AND
DANGEROUS EXPOSURES. SEE SECTION 10 FOR INFORMATION ON CONSTITUENTS WHICH
HAVE SOME POTENTIAL TO PRESENT HEALTH HAZARDS. WELDING CONSUMABLES AND
MATERIALS BEING JOINED MAY CONTAIN CHROMIUM AS AN UNINTENDED TRACE ELEMENT.
MATERIALS THAT CONTAIN CHROMIUM MAY PRODUCE SOME AMOUNT OF HEXAVALENT
CHROMIUM (CrVI) AND OTHER CHROMIUM COMPOUNDS AS A BYPRODUCT IN THE FUME. IN
2018, THE AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS (ACGIH)
LOWERED THE THRESHOLD LIMIT VALUE (TLV) FOR HEXAVALENT CHROMIUM FROM
50 MICROGRAMS PER CUBIC METER OF AIR (50 (MICRO)G/M3) TO 0.2 (MICRO)G/M3.
AT THESE NEW LIMITS, CrVI EXPOSURES AT OR ABOVE THE TLV MAY BE POSSIBLE IN
CASES WHERE ADEQUATE VENTILATION IS NOT PROVIDED. CrVI COMPOUNDS ARE ON THE
IARC AND NTP LISTS AS POSING A LUNG CANCER AND SINUS CANCER RISK. WORKPLACE
CONDITIONS ARE UNIQUE AND WELDING FUME EXPOSURES LEVELS VARY. WORKPLACE
EXPOSURE ASSESSMENTS MUST BE CONDUCTED BY A QUALIFIED PROFESSIONAL, SUCH AS
AN INDUSTRIAL HYGIENIST, TO DETERMINE IF EXPOSURES ARE BELOW APPLICABLE
LIMITS AND TO MAKE RECOMMENDATIONS WHEN NECESSARY FOR PREVENTING
OVEREXPOSURES.

EYE/FACE PROTECTION:
WEAR HELMET OR USE FACE SHIELD WITH FILTER LENS SHADE NUMBER 12 OR DARKER
FOR OPEN ARC PROCESSES - OR FOLLOW THE RECOMMENDATIONS AS SPECIFIED IN ANSI
Z49.1, SECTION 4, BASED ON YOUR PROCESS AND SETTINGS. NO SPECIFIC LENS
SHADE RECOMMENDATION FOR SUBMERGED ARC OR ELECTROSLAG PROCESSES. SHIELD
OTHERS BY PROVIDING APPROPRIATE SCREENS AND FLASH GOGGLES.

SKIN PROTECTION:

HAND PROTECTION:
WEAR PROTECTIVE GLOVES. SUITABLE GLOVES CAN BE RECOMMENDED BY THE GLOVE
SUPPLIER.

OTHER:

PROTECTIVE CLOTHING:
WEAR HAND, HEAD, AND BODY PROTECTION WHICH HELP TO PREVENT INJURY FROM
RADIATION, OPEN FLAMES, HOT SURFACES, SPARKS AND ELECTRICAL SHOCK. SEE
Z49.1. AT A MINIMUM, THIS INCLUDES WELDER'S GLOVES AND A PROTECTIVE FACE
SHIELD WHEN WELDING, AND MAY INCLUDE ARM PROTECTORS, APRONS, HATS, SHOULDER
PROTECTION, AS WELL AS DARK SUBSTANTIAL CLOTHING WHEN WELDING, BRAZING AND
SOLDERING. WEAR DRY GLOVES FREE OF HOLES OR SPLIT SEAMS. TRAIN THE OPERATOR
NOT TO PERMIT ELECTRICALLY LIVE PARTS OR ELECTRODES FROM CONTACTING THE
SKIN ... OR CLOTHING OR GLOVES IF THEY ARE WET. INSULATE YOURSELF FROM
THE WORK PIECE AND GROUND USING DRY PLYWOOD, RUBBER MATS OR OTHER DRY
INSULATION.

RESPIRATORY PROTECTION:
KEEP YOUR HEAD OUT OF FUMES. USE ENOUGH VENTILATION AND LOCAL EXHAUST TO
KEEP FUMES AND GASES FROM YOUR BREATHING ZONE AND THE GENERAL AREA. AN
APPROVED RESPIRATOR SHOULD BE USED UNLESS EXPOSURE ASSESSMENTS ARE BELOW
APPLICABLE EXPOSURE LIMITS.

HYGIENE MEASURES:
DO NOT EAT, DRINK OR SMOKE WHEN USING THE PRODUCT. ALWAYS OBSERVE GOOD
PERSONAL HYGIENE MEASURES, SUCH AS WASHING AFTER HANDLING THE MATERIAL AND
BEFORE EATING, DRINKING, AND/OR SMOKING. ROUTINELY WASH WORK CLOTHING AND
PROTECTIVE EQUIPMENT TO REMOVE CONTAMINANTS. DETERMINE THE COMPOSITION AND
QUANTITY OF FUMES AND GASES TO WHICH WORKERS ARE EXPOSED BY TAKING AN AIR
SAMPLE FROM INSIDE THE WELDER'S HELMET IF WORN OR IN THE WORKER'S BREATHING
ZONE. IMPROVE VENTILATION IF EXPOSURES ARE NOT BELOW LIMITS. SEE ANSI/AWS
F1.1, F1.2, F1.3 AND F1.5, AVAILABLE FROM THE AMERICAN WELDING SOCIETY,
WWW.AWS.ORG.


9. PHYSICAL AND CHEMICAL PROPERTIES 


APPEARANCE: STEEL ROD WITH EXTRUDED FLUX COATING.

PHYSICAL STATE: SOLID

FORM: SOLID

COLOR: NO DATA AVAILABLE.

ODOR: NO DATA AVAILABLE.

ODOR THRESHOLD: NO DATA AVAILABLE.

PH: NO DATA AVAILABLE.

MELTING POINT/FREEZING POINT: NO DATA AVAILABLE.

INITIAL BOILING POINT AND BOILING RANGE: NO DATA AVAILABLE.

FLASH POINT: NO DATA AVAILABLE.

EVAPORATION RATE: NO DATA AVAILABLE.

FLAMMABILITY (SOLID, GAS): NO DATA AVAILABLE.

UPPER/LOWER LIMIT ON FLAMMABILITY OR EXPLOSIVE LIMITS:
FLAMMABILITY LIMIT - UPPER (%): NO DATA AVAILABLE.
FLAMMABILITY LIMIT - LOWER (%): NO DATA AVAILABLE.

EXPLOSIVE LIMIT - UPPER: NO DATA AVAILABLE.
EXPLOSIVE LIMIT - LOWER: NO DATA AVAILABLE.

VAPOR PRESSURE: NO DATA AVAILABLE.

VAPOR DENSITY: NO DATA AVAILABLE.

DENSITY: NO DATA AVAILABLE.

RELATIVE DENSITY: NO DATA AVAILABLE.

SOLUBILITY(IES):
SOLUBILITY IN WATER: NO DATA AVAILABLE.
SOLUBILITY (OTHER): NO DATA AVAILABLE.

PARTITION COEFFICIENT (N-OCTANOL/WATER): NO DATA AVAILABLE.

AUTO-IGNITION TEMPERATURE: NO DATA AVAILABLE.

DECOMPOSITION TEMPERATURE: NO DATA AVAILABLE.

VISCOSITY: NO DATA AVAILABLE.


10. STABILITY AND REACTIVITY 


REACTIVITY:
THE PRODUCT IS NON-REACTIVE UNDER NORMAL CONDITIONS OF USE, STORAGE AND
TRANSPORT.

CHEMICAL STABILITY: MATERIAL IS STABLE UNDER NORMAL CONDITIONS.

POSSIBILITY OF HAZARDOUS REACTIONS: NONE UNDER NORMAL CONDITIONS.

CONDITIONS TO AVOID: AVOID HEAT OR CONTAMINATION.

INCOMPATIBLE MATERIALS:
STRONG ACIDS. STRONG OXIDIZING SUBSTANCES. STRONG BASES.

HAZARDOUS DECOMPOSITION PRODUCTS:
FUMES AND GASES FROM WELDING AND ITS ALLIED PROCESSES SUCH AS BRAZING AND
SOLDERING CANNOT BE CLASSIFIED SIMPLY. THE COMPOSITION AND QUANTITY OF BOTH
ARE DEPENDENT UPON THE METAL TO WHICH THE JOINING OR HOT WORK IS APPLIED,
THE PROCESS, PROCEDURE - AND WHERE APPLICABLE - THE ELECTRODE OR CONSUMABLE
USED. OTHER CONDITIONS WHICH ALSO INFLUENCE THE COMPOSITION AND QUANTITY OF
THE FUMES AND GASES TO WHICH WORKERS MAY BE EXPOSED INCLUDE:
COATINGS ON THE METAL BEING WELDED OR WORKED (SUCH AS PAINT, PLATING, OR
GALVANIZING), THE NUMBER OF OPERATORS AND THE VOLUME OF THE WORK AREA, THE
QUALITY AND AMOUNT OF VENTILATION, THE POSITION OF THE OPERATOR'S HEAD WITH
RESPECT TO THE FUME PLUME, AS WELL AS THE PRESENCE OF CONTAMINANTS IN THE
ATMOSPHERE (SUCH AS CHLORINATED HYDROCARBON VAPORS FROM CLEANING AND
DEGREASING ACTIVITIES.)

IN CASES WHERE AN ELECTRODE OR OTHER APPLIED MATERIAL IS CONSUMED, THE FUME
AND GAS DECOMPOSITION PRODUCTS GENERATED ARE DIFFERENT IN PERCENT AND FORM
FROM THE INGREDIENTS LISTED IN SECTION 3. DECOMPOSITION PRODUCTS OF NORMAL
OPERATION INCLUDE THOSE ORIGINATING FROM THE VOLATILIZATION, REACTION, OR
OXIDATION OF THE MATERIALS SHOWN IN SECTION 3, PLUS THOSE FROM THE BASE
METAL AND COATING, ETC., AS NOTED ABOVE. REASONABLY EXPECTED FUME
CONSTITUENTS PRODUCED DURING ARC WELDING AND BRAZING INCLUDE THE OXIDES OF
IRON, MANGANESE AND OTHER METALS PRESENT IN THE WELDING CONSUMABLE OR BASE
METAL. HEXAVALENT CHROMIUM COMPOUNDS MAY BE IN THE WELDING OR BRAZING FUME
OF CONSUMABLES OR BASE METALS WHICH CONTAIN CHROMIUM. GASEOUS AND
PARTICULATE FLUORIDE MAY BE IN THE FUME OF CONSUMABLES OR FLUX MATERIALS
WHICH CONTAIN FLUORIDE. GASEOUS REACTION PRODUCTS MAY INCLUDE CARBON
MONOXIDE AND CARBON DIOXIDE. OZONE AND NITROGEN OXIDES MAY BE FORMED BY
THE RADIATION FROM THE ARC ASSOCIATED WITH WELDING.


11. TOXICOLOGICAL INFORMATION 


GENERAL INFORMATION:
THE INTERNATIONAL AGENCY FOR RESEARCH ON CANCER (IARC) HAS DETERMINED
WELDING FUMES AND ULTRAVIOLET RADIATION FROM WELDING ARE CARCINOGENIC TO
HUMANS (GROUP 1). ACCORDING TO IARC, WELDING FUMES CAUSE CANCER OF THE LUNG
AND POSITIVE ASSOCIATIONS HAVE BEEN OBSERVED WITH CANCER OF THE KIDNEY.
ALSO ACCORDING TO IARC, ULTRAVIOLET RADIATION FROM WELDING CAUSES OCULAR
MELANOMA. IARC IDENTIFIES GOUGING, BRAZING, CARBON ARC OR PLASMA ARC
CUTTING, AND SOLDERING AS PROCESSES CLOSELY RELATED TO WELDING. READ AND
UNDERSTAND THE MANUFACTURER'S INSTRUCTIONS, SAFETY DATA SHEETS AND THE
PRECAUTIONARY LABELS BEFORE USING THIS PRODUCT.

INFORMATION ON LIKELY ROUTES OF EXPOSURE:

INHALATION:
POTENTIAL CHRONIC HEALTH HAZARDS RELATED TO THE USE OF WELDING CONSUMABLES
ARE MOST APPLICABLE TO THE INHALATION ROUTE OF EXPOSURE. REFER TO
INHALATION STATEMENTS IN SECTION 11.

SKIN CONTACT: ARC RAYS CAN BURN SKIN. SKIN CANCER HAS BEEN REPORTED.

EYE CONTACT: ARC RAYS CAN INJURE EYES.

INGESTION:
HEALTH INJURIES FROM INGESTION ARE NOT KNOWN OR EXPECTED UNDER NORMAL USE.

SYMPTOMS RELATED TO THE PHYSICAL, CHEMICAL AND TOXICOLOGICAL
CHARACTERISTICS:

INHALATION:
RESPIRATORY EXPOSURE TO THE CRYSTALLINE SILICA PRESENT IN THIS WELDING
ELECTRODE IS NOT ANTICIPATED DURING NORMAL USE. RESPIRATORY OVEREXPOSURE TO
AIRBORNE CRYSTALLINE SILICA IS KNOWN TO CAUSE SILICOSIS, A FORM OF
DISABLING PULMONARY FIBROSIS WHICH CAN BE PROGRESSIVE AND MAY LEAD TO
DEATH. CRYSTALLINE SILICA IS ON THE IARC (INTERNATIONAL AGENCY FOR RESEARCH
ON CANCER) AND NTP (NATIONAL TOXICOLOGY PROGRAM) LISTS AS POSING A CANCER
RISK TO HUMANS.

NOTE:
ALL REGIONAL AUTHORITIES DO NOT USE THE SAME CRITERIA FOR ASSIGNING
CARCINOGENIC CLASSIFICATIONS TO CHEMICALS. FOR EXAMPLE, THE EUROPEAN UNION
(EU) CLP DOES NOT REQUIRE CLASSIFYING CRYSTALLINE SILICA AS A CARCINOGENIC
COMPOUND. SHORT-TERM (ACUTE) OVEREXPOSURE TO FUMES AND GASES FROM WELDING
AND ALLIED PROCESSES MAY RESULT IN DISCOMFORT SUCH AS METAL FUME FEVER,
DIZZINESS, NAUSEA, OR DRYNESS OR IRRITATION OF NOSE, THROAT, OR EYES. MAY
AGGRAVATE PRE-EXISTING RESPIRATORY PROBLEMS (E.G. ASTHMA, EMPHYSEMA).
LONG-TERM (CHRONIC) OVEREXPOSURE TO FUMES AND GASES FROM WELDING AND ALLIED
PROCESSES CAN LEAD TO SIDEROSIS (IRON DEPOSITS IN LUNG), CENTRAL NERVOUS
SYSTEM EFFECTS, BRONCHITIS AND OTHER PULMONARY EFFECTS.

INFORMATION ON TOXICOLOGICAL EFFECTS:

ACUTE TOXICITY (LIST ALL POSSIBLE ROUTES OF EXPOSURE):
ORAL:
PRODUCT: NOT CLASSIFIED

SPECIFIED SUBSTANCE(S):
IRON:
LD 50 (RAT): 98.6 G/KG

CALCIUM CARBONATE:
LD 50 (RAT): 6,450 MG/KG

VANADIUM PENTOXIDE:
LD 50 (RAT): 221.1 MG/KG

DERMAL:
PRODUCT: NOT CLASSIFIED

INHALATION:
PRODUCT: NOT CLASSIFIED

SPECIFIED SUBSTANCE(S):
VANADIUM PENTOXIDE:
LC 50 (RAT, 4 H): 2.21 MG/L

REPEATED DOSE TOXICITY:
PRODUCT: NOT CLASSIFIED

SKIN CORROSION/IRRITATION:
PRODUCT: NOT CLASSIFIED

SERIOUS EYE DAMAGE/EYE IRRITATION:
PRODUCT: NOT CLASSIFIED

RESPIRATORY OR SKIN SENSITIZATION:
PRODUCT: NOT CLASSIFIED

CARCINOGENICITY:
PRODUCT:
ARC RAYS: SKIN CANCER HAS BEEN REPORTED.

IARC MONOGRAPHS ON THE EVALUATION OF CARCINOGENIC RISKS TO HUMANS:

TITANIUM DIOXIDE (NATURALLY OCCURRING):
OVERALL EVALUATION: 2B. POSSIBLY CARCINOGENIC TO HUMANS.

QUARTZ:
OVERALL EVALUATION: 1. CARCINOGENIC TO HUMANS.

VANADIUM PENTOXIDE:
OVERALL EVALUATION: 2B. POSSIBLY CARCINOGENIC TO HUMANS.

US. NATIONAL TOXICOLOGY PROGRAM (NTP) REPORT ON CARCINOGENS:
QUARTZ: KNOWN TO BE HUMAN CARCINOGEN.

US. OSHA SPECIFICALLY REGULATED SUBSTANCES (29 CFR 1910.1001-1050), AS
AMENDED:

QUARTZ: CANCER

GERM CELL MUTAGENICITY:
IN VITRO:
PRODUCT: NOT CLASSIFIED

IN VIVO:
PRODUCT: NOT CLASSIFIED

REPRODUCTIVE TOXICITY:
PRODUCT: NOT CLASSIFIED

SPECIFIC TARGET ORGAN TOXICITY - SINGLE EXPOSURE:
PRODUCT: NOT CLASSIFIED

SPECIFIC TARGET ORGAN TOXICITY - REPEATED EXPOSURE:
PRODUCT: NOT CLASSIFIED

ASPIRATION HAZARD:
PRODUCT: NOT CLASSIFIED

OTHER EFFECTS:
ORGANIC POLYMERS MAY BE USED IN THE MANUFACTURE OF VARIOUS WELDING
CONSUMABLES. OVEREXPOSURE TO THEIR DECOMPOSITION BYPRODUCTS MAY RESULT IN A
CONDITION KNOWN AS POLYMER FUME FEVER. POLYMER FUME FEVER USUALLY OCCURS
WITHIN 4 TO 8 HOURS OF EXPOSURE WITH THE PRESENTATION OF FLU LIKE SYMPTOMS,
INCLUDING MILD PULMONARY IRRITATION WITH OR WITHOUT AN INCREASE IN BODY
TEMPERATURE. SIGNS OF EXPOSURE CAN INCLUDE AN INCREASE IN WHITE BLOOD CELL
COUNT. RESOLUTION OF SYMPTOMS TYPICALLY OCCURS QUICKLY, USUALLY NOT LASTING
LONGER THAN 48 HOURS.

SYMPTOMS RELATED TO THE PHYSICAL, CHEMICAL AND TOXICOLOGICAL
CHARACTERISTICS UNDER THE CONDITION OF USE:

INHALATION:

SPECIFIED SUBSTANCE(S):

MANGANESE:
OVEREXPOSURE TO MANGANESE FUMES MAY AFFECT THE BRAIN AND CENTRAL NERVOUS
SYSTEM, RESULTING IN POOR COORDINATION, DIFFICULTY SPEAKING, AND ARM OR LEG
TREMOR. THIS CONDITION CAN BE IRREVERSIBLE.

ADDITIONAL TOXICOLOGICAL INFORMATION UNDER THE CONDITIONS OF USE:

ACUTE TOXICITY:

INHALATION:

SPECIFIED SUBSTANCE(S):

CARBON DIOXIDE:
LC LO (HUMAN, 5 MIN): 90000 PPM

CARBON MONOXIDE:
LC 50 (RAT, 4 H): 1300 PPM

NITROGEN DIOXIDE:
LC 50 (RAT, 4 H): 88 PPM

OZONE:
LC LO (HUMAN, 30 MIN): 50 PPM

OTHER EFFECTS:

SPECIFIED SUBSTANCE(S):

CARBON DIOXIDE: ASPHYXIA
CARBON MONOXIDE: CARBOXYHEMOGLOBINEMIA
NITROGEN DIOXIDE: LOWER RESPIRATORY TRACT IRRITATION


12. ECOLOGICAL INFORMATION 


ECOTOXICITY:

ACUTE HAZARDS TO THE AQUATIC ENVIRONMENT:

FISH:
PRODUCT: NOT CLASSIFIED.

SPECIFIED SUBSTANCE(S):
VANADIUM PENTOXIDE:
LC 50 (FATHEAD MINNOW (PIMEPHALES PROMELAS), 96 H): 13 MG/L

AQUATIC INVERTEBRATES:
PRODUCT: NOT CLASSIFIED.

SPECIFIED SUBSTANCE(S):

MANGANESE:
EC 50 (WATER FLEA (DAPHNIA MAGNA), 48 H): 40 MG/L

VANADIUM PENTOXIDE:
LC 50 (WATER FLEA (DAPHNIA MAGNA), 48 H): 1.11 - 1.96 MG/L

CHRONIC HAZARDS TO THE AQUATIC ENVIRONMENT:
FISH:
PRODUCT: NOT CLASSIFIED.

AQUATIC INVERTEBRATES:
PRODUCT: NOT CLASSIFIED.

TOXICITY TO AQUATIC PLANTS:
PRODUCT: NOT CLASSIFIED.

PERSISTENCE AND DEGRADABILITY:
BIODEGRADATION:
PRODUCT: NO DATA AVAILABLE.

BIOACCUMULATIVE POTENTIAL:
BIOCONCENTRATION FACTOR (BCF):
PRODUCT: NO DATA AVAILABLE.

MOBILITY IN SOIL: NO DATA AVAILABLE.


13. DISPOSAL CONSIDERATIONS 


GENERAL INFORMATION:
THE GENERATION OF WASTE SHOULD BE AVOIDED OR MINIMIZED WHENEVER POSSIBLE.
WHEN PRACTICAL, RECYCLE IN AN ENVIRONMENTALLY ACCEPTABLE, REGULATORY
COMPLIANT MANNER. DISPOSE OF NON-RECYCLABLE PRODUCTS IN ACCORDANCE WITH ALL
APPLICABLE FEDERAL, STATE, PROVINCIAL, AND LOCAL REQUIREMENTS.

DISPOSAL INSTRUCTIONS:
DISPOSAL OF THIS PRODUCT MAY BE REGULATED AS A HAZARDOUS WASTE. THE WELDING
CONSUMABLE AND/OR BY-PRODUCT FROM THE WELDING PROCESS (INCLUDING, BUT NOT
LIMITED TO SLAG, DUST, ETC.) MAY CONTAIN LEVELS OF LEACHABLE HEAVY METALS
SUCH AS BARIUM OR CHROMIUM. PRIOR TO DISPOSAL, A REPRESENTATIVE SAMPLE MUST
BE ANALYZED IN ACCORDANCE WITH US EPA'S TOXICITY CHARACTERISTIC LEACHING
PROCEDURE (TCLP) TO DETERMINE IF ANY CONSTITUENTS EXIST ABOVE REGULATED
THRESHOLD LEVELS. DISCARD ANY PRODUCT, RESIDUE, DISPOSABLE CONTAINER, OR
LINER IN AN ENVIRONMENTALLY ACCEPTABLE MANNER ACCORDING TO FEDERAL, STATE
AND LOCAL REGULATIONS.

CONTAMINATED PACKAGING:
DISPOSE OF CONTENTS/CONTAINER TO AN APPROPRIATE TREATMENT AND DISPOSAL
FACILITY IN ACCORDANCE WITH APPLICABLE LAWS AND REGULATIONS, AND PRODUCT
CHARACTERISTICS AT TIME OF DISPOSAL.


14. TRANSPORT INFORMATION 


DOT:
UN NUMBER OR ID NUMBER:
UN PROPER SHIPPING NAME: NOT DG REGULATED

TRANSPORT HAZARD CLASS(ES):
CLASS: NR
LABEL(S):

PACKING GROUP:

MARINE POLLUTANT: NO

IMDG:
UN NUMBER OR ID NUMBER:
UN PROPER SHIPPING NAME: NOT DG REGULATED

TRANSPORT HAZARD CLASS(ES):
CLASS: NR
LABEL(S):
EMS NO.:

PACKING GROUP:

MARINE POLLUTANT: NO

IATA:
UN NUMBER OR ID NUMBER:
PROPER SHIPPING NAME: NOT DG REGULATED

TRANSPORT HAZARD CLASS(ES):
CLASS: NR
LABEL(S):

PACKING GROUP:

MARINE POLLUTANT: NO

CARGO AIRCRAFT ONLY: ALLOWED.

TDG:
UN NUMBER OR ID NUMBER:
UN PROPER SHIPPING NAME: NOT DG REGULATED

TRANSPORT HAZARD CLASS(ES):
CLASS: NR
LABEL(S):

PACKING GROUP:

MARINE POLLUTANT: NO


15. REGULATORY INFORMATION 


US FEDERAL REGULATIONS:

TSCA SECTION 12(B) EXPORT NOTIFICATION (40 CFR 707, SUBPT. D):
NONE PRESENT OR NONE PRESENT IN REGULATED QUANTITIES.

US. OSHA SPECIFICALLY REGULATED SUBSTANCES (29 CFR 1910.1001-1050), AS
AMENDED:

CHEMICAL IDENTITY                         OSHA HAZARD(S)

QUARTZ                                    KIDNEY EFFECTS
                                          LUNG EFFECTS
                                          IMMUNE SYSTEM EFFECTS
                                          CANCER

CERCLA HAZARDOUS SUBSTANCE LIST (40 CFR 302.4):

CHEMICAL IDENTITY                         REPORTABLE QUANTITY

MANGANESE:
INCLUDED IN THE REGULATION BUT WITH NO DATA VALUES. SEE REGULATION FOR
FURTHER DETAILS.

VANADIUM PENTOXIDE: 1000 LBS.

SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (SARA):

HAZARD CATEGORIES:
NOT CLASSIFIED
NOT CLASSIFIED

SARA 302 EXTREMELY HAZARDOUS SUBSTANCE:

CHEMICAL IDENTITY      REPORTABLE QUANTITY     THRESHOLD PLANNING QUANTITY

VANADIUM PENTOXIDE     1000 LBS.

SARA 304 EMERGENCY RELEASE NOTIFICATION:

CHEMICAL IDENTITY                   REPORTABLE QUANTITY

VANADIUM PENTOXIDE                  1000 LBS.

SARA 311/312 HAZARDOUS CHEMICAL:

CHEMICAL IDENTITY                   THRESHOLD PLANNING QUANTITY

VANADIUM PENTOXIDE                  100 LBS

SARA 313 (TRI REPORTING):

CHEMICAL IDENTITY      REPORTING THRESHOLD    REPORTING THRESHOLD FOR
                       FOR OTHER USERS        MANUFACTURING AND PROCESSING

MANGANESE              10000 LBS              25000 LBS.

CLEAN WATER ACT SECTION 311 HAZARDOUS SUBSTANCES (40 CFR 117.3):

CHEMICAL IDENTITY                 REPORTABLE QUANTITY

VANADIUM PENTOXIDE                REPORTABLE QUANTITY: 1000 LBS.

CLEAN AIR ACT (CAA) SECTION 112(R) ACCIDENTAL RELEASE PREVENTION (40 CFR
68.130): NONE PRESENT OR NONE PRESENT IN REGULATED QUANTITIES.

US STATE REGULATIONS:

US. CALIFORNIA PROPOSITION 65:

WARNING:
THIS PRODUCT CAN EXPOSE YOU TO CHEMICALS INCLUDING, TITANIUM DIOXIDE
(NATURALLY OCCURRING), QUARTZ, VANADIUM PENTOXIDE, TITANIUM DIOXIDE
(SYNTHETIC), WHICH IS [ARE] KNOWN TO THE STATE OF CALIFORNIA TO CAUSE
CANCER.

FOR MORE INFORMATION GO TO WWW.P65WARNINGS.CA.GOV.

WARNING:
THIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL KNOWN TO THE STATE OF
CALIFORNIA TO CAUSE CANCER AND BIRTH DEFECTS (OR OTHER REPRODUCTIVE HARM).
(CALIFORNIA HEALTH & SAFETY CODE SECTION 25249.5 ET SEQ.)

WARNING: CANCER AND REPRODUCTIVE HARM - WWW.P65WARNINGS.CA.GOV

US. NEW JERSEY WORKER AND COMMUNITY RIGHT-TO-KNOW ACT:

CHEMICAL IDENTITY

US. MASSACHUSETTS RTK - SUBSTANCE LIST:
CHEMICAL IDENTITY:
QUARTZ
VANADIUM PENTOXIDE
CHROMIUM OXIDE

US. PENNSYLVANIA RTK - HAZARDOUS SUBSTANCES:
CHEMICAL IDENTITY
TITANIUM DIOXIDE (NATURALLY OCCURRING)
MICA
MANGANESE

US. RHODE ISLAND RTK:
NO INGREDIENT REGULATED BY RI RIGHT-TO-KNOW LAW PRESENT.

CANADA FEDERAL REGULATIONS:

LIST OF TOXIC SUBSTANCES (CEPA, SCHEDULE 1):

CHEMICAL IDENTITY:
VANADIUM PENTOXIDE

EXPORT CONTROL LIST (CEPA 1999, SCHEDULE 3): NOT REGULATED

NATIONAL POLLUTANT RELEASE INVENTORY (NPRI):

CANADA. NATIONAL POLLUTANT RELEASE INVENTORY (NPRI) SUBSTANCES, PART 5,
VOCS WITH ADDITIONAL REPORTING REQUIREMENTS:

NPRI PT5: NOT REGULATED

CANADA. NATIONAL POLLUTANT RELEASE INVENTORY (NPRI)
(SCHEDULE 1, PARTS 1-4):
NPRI: NOT REGULATED

GREENHOUSE GASES: NOT REGULATED

CONTROLLED DRUGS AND SUBSTANCES ACT:
CA CDSI: NOT REGULATED
CA CDSII: NOT REGULATED
CA CDSIII: NOT REGULATED
CA CDSIV: NOT REGULATED
CA CDSV: NOT REGULATED
CA CDSVII: NOT REGULATED
CA CDSVIII: NOT REGULATED

PRECURSOR CONTROL REGULATIONS: NOT REGULATED

MEXICO. SUBSTANCES SUBJECT TO REPORTING FOR THE POLLUTANT RELEASE AND
TRANSFER REGISTRY (PRTR): NOT APPLICABLE

INVENTORY STATUS:

CANADA DSL INVENTORY LIST:
ONE OR MORE COMPONENTS ARE NOT LISTED OR ARE EXEMPT FROM LISTING.

EINECS, ELINCS OR NLP:
ONE OR MORE COMPONENTS ARE NOT LISTED OR ARE EXEMPT FROM LISTING.

JAPAN (ENCS) LIST:
ONE OR MORE COMPONENTS ARE NOT LISTED OR ARE EXEMPT FROM LISTING.

CHINA INV. EXISTING CHEMICAL SUBSTANCES:
ON OR IN COMPLIANCE WITH THE INVENTORY

KOREA EXISTING CHEMICALS INV. (KECI):
ON OR IN COMPLIANCE WITH THE INVENTORY

CANADA NDSL INVENTORY:
ONE OR MORE COMPONENTS ARE NOT LISTED OR ARE EXEMPT FROM LISTING.

PHILIPPINES PICCS: ON OR IN COMPLIANCE WITH THE INVENTORY

US TSCA INVENTORY:
ONE OR MORE COMPONENTS ARE NOT LISTED OR ARE EXEMPT FROM LISTING.

NEW ZEALAND INVENTORY OF CHEMICALS:
ON OR IN COMPLIANCE WITH THE INVENTORY

JAPAN ISHL LISTING:
ONE OR MORE COMPONENTS ARE NOT LISTED OR ARE EXEMPT FROM LISTING.

JAPAN PHARMACOPOEIA LISTING:
ONE OR MORE COMPONENTS ARE NOT LISTED OR ARE EXEMPT FROM LISTING.

MEXICO INSQ:
ONE OR MORE COMPONENTS ARE NOT LISTED OR ARE EXEMPT FROM LISTING.

ONTARIO INVENTORY:
ONE OR MORE COMPONENTS ARE NOT LISTED OR ARE EXEMPT FROM LISTING.

TAIWAN CHEMICAL SUBSTANCE INVENTORY: ON OR IN COMPLIANCE WITH THE INVENTORY

AUSTRALIA AICS:
ONE OR MORE COMPONENTS ARE NOT LISTED OR ARE EXEMPT FROM LISTING.


16. OTHER INFORMATION 


DEFINITIONS:

REVISION DATE: 07/08/2021

FURTHER INFORMATION: ADDITIONAL INFORMATION IS AVAILABLE BY REQUEST.

DISCLAIMER:
THE LINCOLN ELECTRIC COMPANY URGES EACH END USER AND RECIPIENT OF THIS SDS
TO STUDY IT CAREFULLY. SEE ALSO WWW.LINCOLNELECTRIC.COM/SAFETY. IF
NECESSARY, CONSULT AN INDUSTRIAL HYGIENIST OR OTHER EXPERT TO UNDERSTAND
THIS INFORMATION AND SAFEGUARD THE ENVIRONMENT AND PROTECT WORKERS FROM
POTENTIAL HAZARDS ASSOCIATED WITH THE HANDLING OR USE OF THIS PRODUCT. THIS
INFORMATION IS BELIEVED TO BE ACCURATE AS OF THE REVISION DATE SHOWN ABOVE.
HOWEVER, NO WARRANTY, EXPRESSED OR IMPLIED, IS GIVEN. BECAUSE THE
CONDITIONS OR METHODS OF USE ARE BEYOND LINCOLN ELECTRIC'S CONTROL, WE
ASSUME NO LIABILITY RESULTING FROM THE USE OF THIS PRODUCT. REGULATORY
REQUIREMENTS ARE SUBJECT TO CHANGE AND MAY DIFFER BETWEEN VARIOUS
LOCATIONS. COMPLIANCE WITH ALL APPLICABLE FEDERAL, STATE, PROVINCIAL, AND
LOCAL LAWS AND REGULATIONS REMAIN THE RESPONSIBILITY OF THE USER.

(C)2021 LINCOLN GLOBAL, INC. ALL RIGHTS RESERVED.

SDS_NORTH AMERICA - 200000000593