# Talc (containing no asbestos and less than 1% quartz) — workplace exposure limit

For Talc (containing no asbestos and less than 1% quartz), niosh rel, as stated is TWA 2 mg/m3 (resp); cas no. is 14807-96-6, verified against its source on 2026-09-08.

- **Substance:** Talc (containing no asbestos and less than 1% quartz) _(verified: appears in its own passage below)_
- **CAS No.:** 14807-96-6 _(verified: appears in its own passage below)_
- **NIOSH REL, as stated:** TWA 2 mg/m3 (resp) _(verified: appears in the quote below)_
- **PEL (mg/m³):** 2 _(per dir.ca.gov, not stated by the source above)_

## What the source says

> NIOSH REL TWA 2 mg/m3 (resp)

## Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

### Substance

> CDC - NIOSH Pocket Guide to Chemical Hazards - Talc (containing no asbestos and less than 1% quartz)

### CAS No.

> CAS No. 14807-96-6

## What dir.ca.gov says

> 14807966 | | Talc (containing no asbestos fibers), respirable dust | -- | 2

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

## What osha.gov says

> Talc (containing no asbestos), respirable dust | 14807-96-6 | - | (3) | - |

Source: https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1

## Source

- https://www.cdc.gov/niosh/npg/npgd0584.html
- https://www.dir.ca.gov/title8/5155.html
- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1

Last verified: 2026-09-08. Review by: 2027-08-05.
Part of [US workplace chemical exposure limits: federal OSHA, Cal/OSHA and NIOSH, side by side](https://referencesource.org/workplace-exposure-limits/).