# Tetramethyl succinonitrile (decomposition product of 2,2′-azobisisobutyronitrile) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Tetramethyl succinonitrile (decomposition product of 2,2′-azobisisobutyronitrile), pel (ppm) is 0.5; pel (mg/m³) is 3, verified against its source on 2026-08-05.

- **Substance:** Tetramethyl succinonitrile (decomposition product of 2,2′-azobisisobutyronitrile)
- **PEL (ppm):** 0.5
- **PEL (mg/m³):** 3

## What the source says

> 3333526 | S | Tetramethyl succinonitrile (decomposition product of 2,2′-azobisisobutyronitrile) | 0.5 | 3

## Source

- 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/).