Reference Source

Styrene (monomer); phenylethylene

For Styrene (monomer); phenylethylene, pel (ppm) is 50; pel (mg/m³) is 215; ceiling is 500 ppm; stel (ppm) is 100; stel (mg/m³) is 425, verified against its source on 2026-08-05.

Substance
Styrene (monomer); phenylethylene
PEL (ppm)
50
PEL (mg/m³)
215
Ceiling
500 ppm
STEL (ppm)
100
STEL (mg/m³)
425
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

100425 | S | Styrene (monomer); phenylethylene | 50 | 215 | 500 ppm | 100 | 425

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.