# Isopropyl ether; diisopropyl ether — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Isopropyl ether; diisopropyl ether, pel (ppm) is 250; pel (mg/m³) is 1,050, verified against its source on 2026-08-05.

- **Substance:** Isopropyl ether; diisopropyl ether
- **PEL (ppm):** 250
- **PEL (mg/m³):** 1,050

## What the source says

> 108203 | | Isopropyl ether; diisopropyl ether | 250 | 1,050

## 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/).