# 1,1,2,2-Tetrachloro-1,2-difluoroethane — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For 1,1,2,2-Tetrachloro-1,2-difluoroethane, cas no. is 76-12-0; pel (ppm) is 500; pel (mg/m³) is 4170, verified against its source on 2026-08-05.

- **Substance:** 1,1,2,2-Tetrachloro-1,2-difluoroethane
- **CAS No.:** 76-12-0
- **PEL (ppm):** 500
- **PEL (mg/m³):** 4170

## What the source says

> 1,1,2,2-Tetrachloro-1,2-difluoroethane | 76-12-0 | 500 | 4170 | - |

## 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/).