Tantalum, metal and oxide dust — CAS 7440-25-7 — workplace exposure limit
What is the pel (mg/m³) for Tantalum, metal and oxide dust — CAS 7440-25-7 — workplace exposure limit?
For Tantalum, metal and oxide dust, pel (mg/m³) is 5; cas no. is 7440-25-7, verified against its source on 2026-08-05.
Tantalum, metal and oxide dust | 7440-25-7 | - | 5 | - |
— osha.gov, retrieved 2026-08-05
- Substance
- Tantalum, metal and oxide dust verified
- CAS No.
- 7440-25-7 verified
- PEL (mg/m³)
- 5 verified
- NIOSH REL (mg/m³)
- TWA 5 per cdc.gov
What cdc.gov says
NIOSH REL TWA 5 mg/m3 ST 10 mg/m3
— cdc.gov, retrieved 2026-09-08
Substance
CDC - NIOSH Pocket Guide to Chemical Hazards - Tantalum (metal and oxide dust, as Ta)
CAS No.
CAS No. 7440-25-7 (metal)
What dir.ca.gov says
7440257 | | Tantalum metal dust, as Ta | -- | 5
— dir.ca.gov, retrieved 2026-08-05
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0585.html
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html