Dipropylene glycol methyl ether — workplace exposure limit
What is the pel (ppm) for Dipropylene glycol methyl ether — workplace exposure limit?
For Dipropylene glycol methyl ether, pel (ppm) is 100; pel (mg/m³) is 600; cas no. is 34590-94-8, verified against its source on 2026-08-05.
Dipropylene glycol methyl ether | 34590-94-8 | 100 | 600 | X |
— osha.gov, retrieved 2026-08-05
100
The most of this substance workplace air may legally contain, averaged over an 8-hour shift — OSHA's permissible exposure limit (PEL), in parts per million, from the agency's own table row quoted below. Where federal OSHA and Cal/OSHA disagree, both limits are stated, each with its own agency's table row as evidence. NIOSH's number, where there is one, is shown separately: it is a recommended limit, not a legal one, and it is often the strictest of the three.
- Substance
- Dipropylene glycol methyl ether verified
- CAS No.
- 34590-94-8 verified
- PEL (ppm)
- 100 verified
- PEL (mg/m³)
- 600 verified
- STEL (ppm)
- 150 per dir.ca.gov
- STEL (mg/m³)
- 900 per dir.ca.gov
- NIOSH REL (ppm)
- TWA 100 per cdc.gov
- NIOSH REL (mg/m³)
- 600 per cdc.gov
What dir.ca.gov says
34590948 | S | Dipropylene glycol methyl ether | 100 | 600 | | 150 | 900
— dir.ca.gov, retrieved 2026-08-05
What cdc.gov says
NIOSH REL TWA 100 ppm (600 mg/m3) ST 150 ppm (900 mg/m3) [skin]
— cdc.gov, retrieved 2026-09-08
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0241.html