Tetramethyl succinonitrile — workplace exposure limit
What is the pel (ppm) for Tetramethyl succinonitrile — workplace exposure limit?
For Tetramethyl succinonitrile, pel (ppm) is 0.5; pel (mg/m³) is 3; cas no. is 3333-52-6, verified against its source on 2026-08-05.
Tetramethyl succinonitrile | 3333-52-6 | 0.5 | 3 | X |
— osha.gov, retrieved 2026-08-05
0.5
The most of this substance workplace air may legally contain, averaged over an 8-hour shift — OSHA's permissible exposure limit (PEL), in parts per million, from the agency's own table row quoted below. Where federal OSHA and Cal/OSHA disagree, both limits are stated, each with its own agency's table row as evidence. NIOSH's number, where there is one, is shown separately: it is a recommended limit, not a legal one, and it is often the strictest of the three.
- Substance
- Tetramethyl succinonitrile verified
- CAS No.
- 3333-52-6 verified
- PEL (ppm)
- 0.5 verified
- PEL (mg/m³)
- 3 verified
- NIOSH REL (ppm)
- 0.5 per cdc.gov
- NIOSH REL (mg/m³)
- TWA 3 per cdc.gov
What cdc.gov says
NIOSH REL TWA 3 mg/m3 (0.5 ppm) [skin]
— cdc.gov, retrieved 2026-09-08