SDS
Version: 1.0
Revision Date: 10/25/2019
SDS_US - RE1000030030
5/26
Occupational Exposure Limits
Chemical Identity
Type
Exposure Limit Values
Source
Benzene, methyl-
STEL
150 ppm
560 mg/m3
US. OSHA Table Z-1-A (29 CFR 1910.1000)
(1989)
REL
100 ppm
375 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2005)
TWA
100 ppm
375 mg/m3
US. OSHA Table Z-1-A (29 CFR 1910.1000)
(1989)
Ceiling
300 ppm
US. OSHA Table Z-2 (29 CFR 1910.1000) (02
2006)
TWA
20 ppm
US. ACGIH Threshold Limit Values (2008)
TWA
200 ppm
US. OSHA Table Z-2 (29 CFR 1910.1000) (02
2006)
MAX.
CONC
500 ppm
US. OSHA Table Z-2 (29 CFR 1910.1000) (02
2006)
STEL
150 ppm
560 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2005)
Butane
REL
800 ppm
1,900 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2005)
STEL
1,000 ppm
US. ACGIH Threshold Limit Values (03 2018)
TWA
800 ppm
1,900 mg/m3
US. OSHA Table Z-1-A (29 CFR 1910.1000)
(1989)
Naphtha (petroleum), heavy
alkylate
PEL
100 ppm
400 mg/m3
US. OSHA Table Z-1 Limits for Air
Contaminants (29 CFR 1910.1000) (02 2006)
TWA
100 ppm
400 mg/m3
US. OSHA Table Z-1-A (29 CFR 1910.1000)
(1989)
REL
100 ppm
400 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2010)
Propane
REL
1,000 ppm
1,800 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2005)
PEL
1,000 ppm
1,800 mg/m3
US. OSHA Table Z-1 Limits for Air
Contaminants (29 CFR 1910.1000) (02 2006)
TWA
1,000 ppm
1,800 mg/m3
US. OSHA Table Z-1-A (29 CFR 1910.1000)
(1989)
Distillates (petroleum), light
distillate hydrotreating
process, low-boiling - Mist.
STEL
10 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2005)
TWA
5 mg/m3
US. OSHA Table Z-1-A (29 CFR 1910.1000)
(1989)
REL
5 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2005)
PEL
5 mg/m3
US. OSHA Table Z-1 Limits for Air
Contaminants (29 CFR 1910.1000) (02 2006)
Limestone - Total
REL
10 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2005)
Limestone - Respirable.
REL
5 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2005)
Limestone - Respirable
fraction.
PEL
5 mg/m3
US. OSHA Table Z-1 Limits for Air
Contaminants (29 CFR 1910.1000) (02 2006)
Limestone - Total dust.
PEL
15 mg/m3
US. OSHA Table Z-1 Limits for Air
Contaminants (29 CFR 1910.1000) (02 2006)
TWA
15 mg/m3
US. OSHA Table Z-1-A (29 CFR 1910.1000)
(1989)
Limestone - Respirable
fraction.
TWA
5 mg/m3
US. OSHA Table Z-1-A (29 CFR 1910.1000)
(1989)
Carbon black
REL
3.5 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2005)
PEL
3.5 mg/m3
US. OSHA Table Z-1 Limits for Air
Contaminants (29 CFR 1910.1000) (02 2006)
Carbon black - Inhalable
fraction.
TWA
3 mg/m3
US. ACGIH Threshold Limit Values (12 2010)
Carbon black
TWA
3.5 mg/m3
US. OSHA Table Z-1-A (29 CFR 1910.1000)
(1989)
Carbon black - as PAHs
REL
0.1 mg/m3
US. NIOSH: Pocket Guide to Chemical
Hazards (2016)
Silica
TWA
6 mg/m3
US. OSHA Table Z-1-A (29 CFR 1910.1000)
(1989)
TWA
20 millions of
particles per
cubic foot of
air
US. OSHA Table Z-3 (29 CFR 1910.1000)
(2000)