Ethyl silicate — workplace exposure limit
What is the pel (ppm) for Ethyl silicate — workplace exposure limit?
For Ethyl silicate, pel (ppm) is 100; pel (mg/m³) is 850; cas no. is 78-10-4, verified against its source on 2026-08-05.
Ethyl silicate | 78-10-4 | 100 | 850 | - |
— osha.gov, retrieved 2026-08-05
- Substance
- Ethyl silicate verified
- CAS No.
- 78-10-4 verified
- PEL (ppm)
- 100 verified
- PEL (mg/m³)
- 850 verified
- NIOSH REL (ppm)
- TWA 10 per cdc.gov
- NIOSH REL (mg/m³)
- 85 per cdc.gov
What cdc.gov says
NIOSH REL TWA 10 ppm (85 mg/m3)
— cdc.gov, retrieved 2026-09-08
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 (ppm)
osha.gov says pel (ppm) is 100, as of 2026-08-05.
Ethyl silicate | 78-10-4 | 100 | 850 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (ppm) is 10, as of 2026-08-05.
78104 | | Ethyl silicate; tetraethyl silicate | 10 | 85
https://www.dir.ca.gov/title8/5155.html
PEL (mg/m³)
osha.gov says pel (mg/m³) is 850, as of 2026-08-05.
Ethyl silicate | 78-10-4 | 100 | 850 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 85, as of 2026-08-05.
78104 | | Ethyl silicate; tetraethyl silicate | 10 | 85
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0282.html
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html