Isopropyl acetate — workplace exposure limit
What is the pel (ppm) for Isopropyl acetate — workplace exposure limit?
For Isopropyl acetate, pel (ppm) is 250; pel (mg/m³) is 950; cas no. is 108-21-4, verified against its source on 2026-08-05.
Isopropyl acetate | 108-21-4 | 250 | 950 | - |
— osha.gov, retrieved 2026-08-05
250
The most of this substance workplace air may legally contain, averaged over an 8-hour shift — OSHA's permissible exposure limit (PEL), in parts per million, from the agency's own table row quoted below. Where federal OSHA and Cal/OSHA disagree, both limits are stated, each with its own agency's table row as evidence. NIOSH's number, where there is one, is shown separately: it is a recommended limit, not a legal one, and it is often the strictest of the three.
- Substance
- Isopropyl acetate verified
- CAS No.
- 108-21-4 verified
- PEL (ppm)
- 250 verified
- PEL (mg/m³)
- 950 verified
- STEL (ppm)
- 310 per dir.ca.gov
- STEL (mg/m³)
- 1185 per dir.ca.gov
- NIOSH REL, as stated
- See Appendix D per cdc.gov
What dir.ca.gov says
108214 | | Isopropyl acetate | 250 | 950 | | 310 | 1185
— dir.ca.gov, retrieved 2026-08-05
What cdc.gov says
NIOSH REL See Appendix D
— cdc.gov, retrieved 2026-09-08
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/npgd0358.html