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

For Glycidol, cas no. is 556-52-5; pel (ppm) is 50; pel (mg/m³) is 150, verified against its source on 2026-08-05.

- **Substance:** Glycidol
- **CAS No.:** 556-52-5
- **PEL (ppm):** 50
- **PEL (mg/m³):** 150

## What the source says

> Glycidol | 556-52-5 | 50 | 150 | - |

## 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/).