Reference Source

n-Propyl nitrate

For n-Propyl nitrate, cas no. is 627-13-4; pel (ppm) is 25; pel (mg/m³) is 110, verified against its source on 2026-08-05.

Substance
n-Propyl nitrate
CAS No.
627-13-4
PEL (ppm)
25
PEL (mg/m³)
110
Sourceosha.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

n-Propyl nitrate | 627-13-4 | 25 | 110 | - |

— 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 (mg/m³)

osha.gov says pel (mg/m³) is 110, as of 2026-08-05.

n-Propyl nitrate | 627-13-4 | 25 | 110 | - |

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

dir.ca.gov says pel (mg/m³) is 107, as of 2026-08-05.

627134 | | n-Propyl nitrate | 25 | 107 | | 40 | 170

https://www.dir.ca.gov/title8/5155.html

Sources

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.