# Methyl acetylene-propadiene mixture; MAPP — workplace exposure limit

For Methyl acetylene-propadiene mixture; MAPP, pel (ppm) is 1,000; pel (mg/m³) is 1,800; stel (ppm) is 1250; stel (mg/m³) is 2250, verified against its source on 2026-09-29.

- **Substance:** Methyl acetylene-propadiene mixture; MAPP _(verified: appears in the quote below)_
- **PEL (ppm):** 1,000 _(verified: appears in the quote below)_
- **PEL (mg/m³):** 1,800 _(verified: appears in the quote below)_
- **STEL (ppm):** 1250 _(verified: appears in the quote below)_
- **STEL (mg/m³):** 2250 _(verified: appears in the quote below)_

## What the source says

> Methyl acetylene-propadiene mixture; MAPP | 1,000 | 1,800 | | 1250 | 2250

## Source

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

Last verified: 2026-09-29. Review by: 2027-09-29.
Part of [US workplace chemical exposure limits: federal OSHA, Cal/OSHA and NIOSH, side by side](https://referencesource.org/workplace-exposure-limits/).