Diphenyl (Biphenyl) — workplace exposure limit
What is the pel (ppm) for Diphenyl (Biphenyl) — workplace exposure limit?
For Diphenyl (Biphenyl), pel (ppm) is 0.2; pel (mg/m³) is 1; cas no. is 92-52-4, verified against its source on 2026-08-05.
Diphenyl (Biphenyl) | 92-52-4 | 0.2 | 1 | - |
— osha.gov, retrieved 2026-08-05
0.2
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
- Diphenyl (Biphenyl) verified
- CAS No.
- 92-52-4 verified
- PEL (ppm)
- 0.2 verified
- PEL (mg/m³)
- 1 verified
Source
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1