Methyl isoamyl ketone
For Methyl isoamyl ketone, cas no. is 110-12-3; pel (ppm) is 100; pel (mg/m³) is 475, verified against its source on 2026-08-05.
- Substance
- Methyl isoamyl ketone
- CAS No.
- 110-12-3
- PEL (ppm)
- 100
- PEL (mg/m³)
- 475
What the source says
Methyl isoamyl ketone | 110-12-3 | 100 | 475 | - |
— 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 100, as of 2026-08-05.
Methyl isoamyl ketone | 110-12-3 | 100 | 475 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (ppm) is 50, as of 2026-08-05.
110123 | | Methyl isoamyl ketone | 50 | 234
https://www.dir.ca.gov/title8/5155.html
PEL (mg/m³)
osha.gov says pel (mg/m³) is 475, as of 2026-08-05.
Methyl isoamyl ketone | 110-12-3 | 100 | 475 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 234, as of 2026-08-05.
110123 | | Methyl isoamyl ketone | 50 | 234
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html