---
type: threshold
id: phenylphosphine
asset: workplace-exposure-limits
title: "Phenylphosphine — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "638211 | | Phenylphosphine | 0.05 | 0.25 | C"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Phenylphosphine"
pel_ppm: "0.05"
pel_mgm3: "0.25"
ceiling: "C"
verified: true
---
**Substance:** Phenylphosphine

**PEL (ppm):** 0.05

**PEL (mg/m³):** 0.25

**Ceiling:** C

> 638211 | | Phenylphosphine | 0.05 | 0.25 | C

Source: <https://www.dir.ca.gov/title8/5155.html>