Perchloroethylene — workplace exposure limit
What is the pel (ppm) for Perchloroethylene — workplace exposure limit?
For Perchloroethylene, pel (ppm) is 25; pel (mg/m³) is 170; ceiling is 300 ppm; cas no. is 127184, verified against its source on 2026-08-05.
127184 | | Perchloroethylene | 25 | 170 | 300 ppm | 100 | 685
— dir.ca.gov, retrieved 2026-08-05
25
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
- Perchloroethylene verified
- CAS No.
- 127184 verified
- PEL (ppm)
- 25 verified
- PEL (mg/m³)
- 170 verified
- Ceiling
- 300 ppm verified
- STEL (ppm)
- 100 verified
- STEL (mg/m³)
- 685 verified
Source
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html