Reference Source

Ketene; ethenone

For Ketene; ethenone, pel (ppm) is 0.5; pel (mg/m³) is 0.9; stel (ppm) is 1.5; stel (mg/m³) is 3, verified against its source on 2026-08-05.

Substance
Ketene; ethenone
PEL (ppm)
0.5
PEL (mg/m³)
0.9
STEL (ppm)
1.5
STEL (mg/m³)
3
Sourcedir.ca.gov
Verified2026-08-05
Review by2027-08-05
DatasetUS workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

What the source says

463514 | | Ketene; ethenone | 0.5 | 0.9 | | 1.5 | 3

— dir.ca.gov, retrieved 2026-08-05

Source

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.