# Crotonaldehyde; beta-methylacrolein — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Crotonaldehyde; beta-methylacrolein, ceiling is 0.3, verified against its source on 2026-08-05.

- **Substance:** Crotonaldehyde; beta-methylacrolein
- **Ceiling:** 0.3

## What the source says

> 123739 | S | Crotonaldehyde; beta-methylacrolein | | | 0.3

## 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/).