# Chlorobenzene — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Chlorobenzene, cas no. is 108-90-7; pel (ppm) is 75; pel (mg/m³) is 350, verified against its source on 2026-08-05.

- **Substance:** Chlorobenzene
- **CAS No.:** 108-90-7
- **PEL (ppm):** 75
- **PEL (mg/m³):** 350

## What the source says

> Chlorobenzene | 108-90-7 | 75 | 350 | - |

## Source

- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1

Last verified: 2026-08-05. Review by: 2027-08-05.
Part of [US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side](https://referencesource.org/workplace-exposure-limits/).