Sulfur hexafluoride
For Sulfur hexafluoride, cas no. is 2551-62-4; pel (ppm) is 1000; pel (mg/m³) is 6000, verified against its source on 2026-08-05.
- Substance
- Sulfur hexafluoride
- CAS No.
- 2551-62-4
- PEL (ppm)
- 1000
- PEL (mg/m³)
- 6000
What the source says
Sulfur hexafluoride | 2551-62-4 | 1000 | 6000 | - |
— 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 1000, as of 2026-08-05.
Sulfur hexafluoride | 2551-62-4 | 1000 | 6000 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (ppm) is 1,000, as of 2026-08-05.
2551624 | | Sulfur hexafluoride | 1,000 | 6,000
https://www.dir.ca.gov/title8/5155.html
PEL (mg/m³)
osha.gov says pel (mg/m³) is 6000, as of 2026-08-05.
Sulfur hexafluoride | 2551-62-4 | 1000 | 6000 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 6,000, as of 2026-08-05.
2551624 | | Sulfur hexafluoride | 1,000 | 6,000
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html