---
type: threshold
id: dibutyl-phenyl-phosphate
asset: workplace-exposure-limits
title: "Dibutyl phenyl phosphate — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "2528361 | S | Dibutyl phenyl phosphate | 0.3 | 3.5"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Dibutyl phenyl phosphate"
pel_ppm: "0.3"
pel_mgm3: "3.5"
verified: true
---
**Substance:** Dibutyl phenyl phosphate

**PEL (ppm):** 0.3

**PEL (mg/m³):** 3.5

> 2528361 | S | Dibutyl phenyl phosphate | 0.3 | 3.5

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