# Rubber solvent (Naphtha) — workplace exposure limit

For Rubber solvent (Naphtha), pel (ppm) is 400; pel (mg/m³) is 1,600, verified against its source on 2026-09-29.

- **Substance:** Rubber solvent (Naphtha) _(verified: appears in the quote below)_
- **PEL (ppm):** 400 _(verified: appears in the quote below)_
- **PEL (mg/m³):** 1,600 _(verified: appears in the quote below)_

## What the source says

> Rubber solvent (Naphtha) | 400 | 1,600

## 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/).