Furfural
For Furfural, cas no. is 98-01-1; pel (ppm) is 5; pel (mg/m³) is 20, verified against its source on 2026-08-05.
- Substance
- Furfural
- CAS No.
- 98-01-1
- PEL (ppm)
- 5
- PEL (mg/m³)
- 20
What the source says
Furfural | 98-01-1 | 5 | 20 | X |
— osha.gov, retrieved 2026-08-05
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