Reference Source

Phosphine; PH $3

For Phosphine; PH $3, pel (ppm) is 0.3; pel (mg/m³) is 0.4; stel (ppm) is 1; stel (mg/m³) is 1, verified against its source on 2026-08-05.

Substance
Phosphine; PH $3
PEL (ppm)
0.3
PEL (mg/m³)
0.4
STEL (ppm)
1
STEL (mg/m³)
1
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

7803512 | | Phosphine; PH $3 | 0.3 | 0.4 | | 1 | 1

— 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.