# 1,1-Dichloro-1-nitroethane — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For 1,1-Dichloro-1-nitroethane, cas no. is 594-72-9; pel (ppm) is (C)10; pel (mg/m³) is (C)60, verified against its source on 2026-08-05.

- **Substance:** 1,1-Dichloro-1-nitroethane
- **CAS No.:** 594-72-9
- **PEL (ppm):** (C)10
- **PEL (mg/m³):** (C)60

## What the source says

> 1,1-Dichloro-1-nitroethane | 594-72-9 | (C)10 | (C)60 | - |

## Sources disagree

More than one authority states this, and they do not state the same
thing. Both are reproduced with the source each came from.

### PEL (ppm)

osha.gov says pel (ppm) is **(C)10**, as of 2026-08-05.

> 1,1-Dichloro-1-nitroethane | 594-72-9 | (C)10 | (C)60 | - |

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

dir.ca.gov says pel (ppm) is **2**, as of 2026-08-05.

> 594729 | | 1,1-Dichloro-1-nitroethane | 2 | 10

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


### PEL (mg/m³)

osha.gov says pel (mg/m³) is **(C)60**, as of 2026-08-05.

> 1,1-Dichloro-1-nitroethane | 594-72-9 | (C)10 | (C)60 | - |

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

dir.ca.gov says pel (mg/m³) is **10**, as of 2026-08-05.

> 594729 | | 1,1-Dichloro-1-nitroethane | 2 | 10

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


## Source

- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- https://www.dir.ca.gov/title8/5155.html

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/).