1,2,3-Trimethylbenzene — workplace exposure limit
What is the niosh rel (ppm) for 1,2,3-Trimethylbenzene — workplace exposure limit?
For 1,2,3-Trimethylbenzene, niosh rel (ppm) is TWA 25; niosh rel (mg/m³) is 125; cas no. is 526-73-8, verified against its source on 2026-09-08.
NIOSH REL TWA 25 ppm (125 mg/m3)
— cdc.gov, retrieved 2026-09-08
- Substance
- 1,2,3-Trimethylbenzene verified
- CAS No.
- 526-73-8 verified
- NIOSH REL (ppm)
- TWA 25 verified
- NIOSH REL (mg/m³)
- 125 verified
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 - 1,2,3-Trimethylbenzene
CAS No.
CAS No. 526-73-8
— all from cdc.gov, retrieved 2026-09-08
Source
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0637.html