Propane
For Propane, cas no. is 74-98-6; pel (ppm) is 1000; pel (mg/m³) is 1800, verified against its source on 2026-08-05.
- Substance
- Propane
- CAS No.
- 74-98-6
- PEL (ppm)
- 1000
- PEL (mg/m³)
- 1800
What the source says
Propane | 74-98-6 | 1000 | 1800 | - |
— osha.gov, retrieved 2026-08-05
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 (mg/m³)
osha.gov says pel (mg/m³) is 1800, as of 2026-08-05.
Propane | 74-98-6 | 1000 | 1800 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 1800 (h), as of 2026-08-05.
74986 | | Propane | 1000 | 1800 (h)
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html