n-Propyl acetate — workplace exposure limit
What is the pel (ppm) for n-Propyl acetate — workplace exposure limit?
For n-Propyl acetate, pel (ppm) is 200; pel (mg/m³) is 840; cas no. is 109-60-4, verified against its source on 2026-08-05.
n-Propyl acetate | 109-60-4 | 200 | 840 | - |
— osha.gov, retrieved 2026-08-05
200
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
- n-Propyl acetate verified
- CAS No.
- 109-60-4 verified
- PEL (ppm)
- 200 verified
- PEL (mg/m³)
- 840 verified
- STEL (ppm)
- 250 per dir.ca.gov
- STEL (mg/m³)
- 1050 per dir.ca.gov
- NIOSH REL (ppm)
- TWA 200 per cdc.gov
- NIOSH REL (mg/m³)
- 840 per cdc.gov
What dir.ca.gov says
109604 | | n-Propyl acetate | 200 | 840 | | 250 | 1050
— dir.ca.gov, retrieved 2026-08-05
What cdc.gov says
NIOSH REL TWA 200 ppm (840 mg/m3) ST 250 ppm (1050 mg/m3)
— 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/npgd0532.html