Methyl iodide
For Methyl iodide, cas no. is 74-88-4; pel (ppm) is 5; pel (mg/m³) is 28, verified against its source on 2026-08-05.
- Substance
- Methyl iodide
- CAS No.
- 74-88-4
- PEL (ppm)
- 5
- PEL (mg/m³)
- 28
What the source says
Methyl iodide | 74-88-4 | 5 | 28 | X |
— 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 5, as of 2026-08-05.
Methyl iodide | 74-88-4 | 5 | 28 | X |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (ppm) is 2, as of 2026-08-05.
74884 | S | Methyl iodide | 2 | 10
https://www.dir.ca.gov/title8/5155.html
PEL (mg/m³)
osha.gov says pel (mg/m³) is 28, as of 2026-08-05.
Methyl iodide | 74-88-4 | 5 | 28 | X |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 10, as of 2026-08-05.
74884 | S | Methyl iodide | 2 | 10
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html