Octane — workplace exposure limit
What is the pel (ppm) for Octane — workplace exposure limit?
For Octane, pel (ppm) is 500; pel (mg/m³) is 2350; cas no. is 111-65-9, verified against its source on 2026-08-05.
Octane | 111-65-9 | 500 | 2350 | - |
— osha.gov, retrieved 2026-08-05
- Substance
- Octane verified
- CAS No.
- 111-65-9 verified
- PEL (ppm)
- 500 verified
- PEL (mg/m³)
- 2350 verified
- STEL (ppm)
- 375 per dir.ca.gov
- STEL (mg/m³)
- 1800 per dir.ca.gov
- NIOSH REL (ppm)
- TWA 75 per cdc.gov
- NIOSH REL (mg/m³)
- 350 per cdc.gov
What cdc.gov says
NIOSH REL TWA 75 ppm (350 mg/m3) C 385 ppm (1800 mg/m3) [15-minute]
— cdc.gov, retrieved 2026-09-08
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
PEL (ppm)
osha.gov says pel (ppm) is 500, as of 2026-08-05.
Octane | 111-65-9 | 500 | 2350 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (ppm) is 300, as of 2026-08-05.
111659 | | Octane | 300 | 1,450 | | 375 | 1800
https://www.dir.ca.gov/title8/5155.html
PEL (mg/m³)
osha.gov says pel (mg/m³) is 2350, as of 2026-08-05.
Octane | 111-65-9 | 500 | 2350 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 1,450, as of 2026-08-05.
111659 | | Octane | 300 | 1,450 | | 375 | 1800
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0470.html