Acetone — workplace exposure limit
What is the pel (ppm) for Acetone — workplace exposure limit?
For Acetone, pel (ppm) is 1000; pel (mg/m³) is 2400; cas no. is 67-64-1, verified against its source on 2026-08-05.
Acetone | 67-64-1 | 1000 | 2400 | - |
— osha.gov, retrieved 2026-08-05
- Substance
- Acetone verified
- CAS No.
- 67-64-1 verified
- PEL (ppm)
- 1000 verified
- PEL (mg/m³)
- 2400 verified
- Ceiling
- 3000 ppm per dir.ca.gov
- STEL (ppm)
- 750 per dir.ca.gov
- STEL (mg/m³)
- 1780 per dir.ca.gov
- NIOSH REL (ppm)
- TWA 250 per cdc.gov
- NIOSH REL (mg/m³)
- 590 per cdc.gov
What cdc.gov says
NIOSH REL TWA 250 ppm (590 mg/m3)
— cdc.gov, retrieved 2026-09-08
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.
Acetone | 67-64-1 | 1000 | 2400 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (ppm) is 500, as of 2026-08-05.
67641 | | Acetone | 500 | 1200 | 3000 ppm | 750 | 1780
https://www.dir.ca.gov/title8/5155.html
PEL (mg/m³)
osha.gov says pel (mg/m³) is 2400, as of 2026-08-05.
Acetone | 67-64-1 | 1000 | 2400 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 1200, as of 2026-08-05.
67641 | | Acetone | 500 | 1200 | 3000 ppm | 750 | 1780
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0004.html