Furfural — CAS 98-01-1 — workplace exposure limit
What is the pel (ppm) for Furfural — CAS 98-01-1 — workplace exposure limit?
For Furfural, pel (ppm) is disputed: 5 per osha.gov, 2 per dir.ca.gov; pel (mg/m³) is disputed: 20 per osha.gov, 8 per dir.ca.gov; cas no. is 98-01-1, verified against its source on 2026-08-05.
Furfural | 98-01-1 | 5 | 20 | X |
— osha.gov, retrieved 2026-08-05
- Substance
- Furfural verified
- CAS No.
- 98-01-1 verified
- PEL (ppm)
- 5 sources disagree
- PEL (mg/m³)
- 20 sources disagree
- NIOSH REL, as stated
- See Appendix D per cdc.gov
What cdc.gov says
NIOSH REL See Appendix D
— cdc.gov, retrieved 2026-09-08
Substance
CDC - NIOSH Pocket Guide to Chemical Hazards - Furfural
CAS No.
CAS No. 98-01-1
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
PEL (ppm)
osha.gov says pel (ppm) is 5, as of 2026-08-05.
Furfural | 98-01-1 | 5 | 20 | X |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (ppm) is 2, as of 2026-08-05.
98011 | S | Furfural | 2 | 8
https://www.dir.ca.gov/title8/5155.html
PEL (mg/m³)
osha.gov says pel (mg/m³) is 20, as of 2026-08-05.
Furfural | 98-01-1 | 5 | 20 | X |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 8, as of 2026-08-05.
98011 | S | Furfural | 2 | 8
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0297.html