---
type: threshold
id: xylene-xylol-dimethylbenzene
asset: workplace-exposure-limits
title: "Xylene; xylol; dimethylbenzene — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "1330207 | | Xylene; xylol; dimethylbenzene | 100 | 435 | 300 ppm | 150 | 655"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Xylene; xylol; dimethylbenzene"
pel_ppm: "100"
pel_mgm3: "435"
ceiling: "300 ppm"
stel_ppm: "150"
stel_mgm3: "655"
verified: true
---
**Substance:** Xylene; xylol; dimethylbenzene

**PEL (ppm):** 100

**PEL (mg/m³):** 435

**Ceiling:** 300 ppm

**STEL (ppm):** 150

**STEL (mg/m³):** 655

> 1330207 | | Xylene; xylol; dimethylbenzene | 100 | 435 | 300 ppm | 150 | 655

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