Styrene — workplace exposure limit
What is the cas no. for Styrene — workplace exposure limit?
For Styrene, cas no. is 100-42-5, verified against its source on 2026-08-05.
Styrene | 100-42-5 | - | (2) | - |
— osha.gov, retrieved 2026-08-05
- Substance
- Styrene verified
- CAS No.
- 100-42-5 verified
- NIOSH REL (ppm)
- TWA 50 per cdc.gov
- NIOSH REL (mg/m³)
- 215 per cdc.gov
What cdc.gov says
NIOSH REL TWA 50 ppm (215 mg/m3) ST 100 ppm (425 mg/m3)
— cdc.gov, retrieved 2026-09-08