o-Toluidine — workplace exposure limit
What is the pel (ppm) for o-Toluidine — workplace exposure limit?
For o-Toluidine, pel (ppm) is 5; pel (mg/m³) is 22; cas no. is 95-53-4, verified against its source on 2026-08-05.
o-Toluidine | 95-53-4 | 5 | 22 | X |
— osha.gov, retrieved 2026-08-05
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
- o-Toluidine verified
- CAS No.
- 95-53-4 verified
- PEL (ppm)
- 5 verified
- PEL (mg/m³)
- 22 verified
- NIOSH REL, as stated
- Ca [skin] See Appendix A per cdc.gov
What cdc.gov says
NIOSH REL Ca [skin] See Appendix A
— cdc.gov, retrieved 2026-09-08