Tetranitromethane
For Tetranitromethane, cas no. is 509-14-8; pel (ppm) is 1; pel (mg/m³) is 8, verified against its source on 2026-08-05.
- Substance
- Tetranitromethane
- CAS No.
- 509-14-8
- PEL (ppm)
- 1
- PEL (mg/m³)
- 8
What the source says
Tetranitromethane | 509-14-8 | 1 | 8 | - |
— 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 (ppm)
osha.gov says pel (ppm) is 1, as of 2026-08-05.
Tetranitromethane | 509-14-8 | 1 | 8 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (ppm) is 0.005, as of 2026-08-05.
509148 | | Tetranitromethane | 0.005 | 0.04
https://www.dir.ca.gov/title8/5155.html
PEL (mg/m³)
osha.gov says pel (mg/m³) is 8, as of 2026-08-05.
Tetranitromethane | 509-14-8 | 1 | 8 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 0.04, as of 2026-08-05.
509148 | | Tetranitromethane | 0.005 | 0.04
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html