---
type: threshold
id: biphenyl-diphenyl-phenylbenzene
asset: workplace-exposure-limits
title: "Biphenyl; diphenyl; phenylbenzene — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "92524 | | Biphenyl; diphenyl; phenylbenzene | 0.2 | 1.5"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Biphenyl; diphenyl; phenylbenzene"
pel_ppm: "0.2"
pel_mgm3: "1.5"
verified: true
---
**Substance:** Biphenyl; diphenyl; phenylbenzene

**PEL (ppm):** 0.2

**PEL (mg/m³):** 1.5

> 92524 | | Biphenyl; diphenyl; phenylbenzene | 0.2 | 1.5

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