Ketene

For Ketene, cas no. is 463-51-4; pel (ppm) is 0.5; pel (mg/m³) is 0.9, verified against its source on 2026-08-05.

What the source says

Ketene | 463-51-4 | 0.5 | 0.9 | - |

— osha.gov, retrieved 2026-08-05

Source

• osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1

Last verified against source: 2026-08-05. Scheduled for re-check by: 2027-08-05. This page as Markdown · OKF concept · full dataset as JSON.