Specification

Version: 1.1
Revision Date: 01/16/2020
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amended (02 2013)
ST ESL
700 µg/m3
US. Texas. Effects Screening Levels (Texas
Commission on Environmental Quality), as
amended (02 2013)
AN ESL
125 µg/m3
US. Texas. Effects Screening Levels (Texas
Commission on Environmental Quality), as
amended (07 2011)
TWA PEL
25 ppm
125 mg/m3
US. California Code of Regulations, Title 8,
Section 5155. Airborne Contaminants, as
amended (08 2010)
TWA
25 ppm
US. ACGIH Threshold Limit Values, as
amended (2011)
Trimethyl benzene (mixed
isomers)
TWA
25 ppm
US. ACGIH Threshold Limit Values, as
amended (2011)
1,3,5-Trimethylbenzene
TWA
25 ppm
US. ACGIH Threshold Limit Values, as
amended (2011)
Crystalline Silica (Quartz)/
Silica Sand - Respirable
fraction.
TWA
0.025 mg/m3
US. ACGIH Threshold Limit Values, as
amended (2011)
Crystalline Silica (Quartz)/
Silica Sand - Respirable dust.
TWA
0.05 mg/m3
US. OSHA Specifically Regulated Substances
(29 CFR 1910.1001-1053), as amended (03
2016)
OSHA_AC
T
0.025 mg/m3
US. OSHA Specifically Regulated Substances
(29 CFR 1910.1001-1053), as amended (03
2016)
Crystalline Silica (Quartz)/
Silica Sand - Respirable dust.
PEL
0.05 mg/m3
US. OSHA Table Z-1 Limits for Air
Contaminants (29 CFR 1910.1000), as
amended (03 2016)
Crystalline Silica (Quartz)/
Silica Sand - Respirable.
TWA
2.4 millions
of particles
per cubic foot
of air
US. OSHA Table Z-3 (29 CFR 1910.1000), as
amended (2000)
TWA
0.1 mg/m3
US. OSHA Table Z-3 (29 CFR 1910.1000), as
amended (2000)
2,4-Toluene diisocyanate -
Inhalable fraction and vapor.
STEL
0.005 ppm
US. ACGIH Threshold Limit Values, as
amended (03 2016)
TWA
0.001 ppm
US. ACGIH Threshold Limit Values, as
amended (03 2016)
2,4-Toluene diisocyanate
Ceiling
0.02 ppm
0.14 mg/m3
US. OSHA Table Z-1 Limits for Air
Contaminants (29 CFR 1910.1000), as
amended (02 2006)
Chemical name
Type
Exposure Limit Values
Source
Diisodecyl phthalate
TWA
5 mg/m3
Canada. Ontario OELs. (Control of Exposure to
Biological or Chemical Agents), as amended
(11 2010)
Calcium Carbonate
(Limestone) - Total dust.
STEL
20 mg/m3
Canada. British Columbia OELs. (Occupational
Exposure Limits for Chemical Substances,
Occupational Health and Safety Regulation
296/97, as amended) (07 2007)
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)