Silicate, soapstone
RTECS #
VV8780000
CAS #
Updated
October 2010
Molecular Weight
251.31
Molecular Formula
3MgO·4SiO2·H2O
Synonyms
Massive talc
Silicates : soapstone (ACGIH:OSHA)
Soapstone silicate
Steatite
Silicates : soapstone (ACGIH:OSHA)
Soapstone silicate
Steatite
Standards and Regulations
| Organization | Standard | Reference |
|---|---|---|
| Occupational Exposure Limit-AUSTRALIA | time-weighted average 0.01 mg/m3 (respirable dust), JUL2008 | |
| Occupational Exposure Limit-BELGIUM | time-weighted average 3 mg/m3 (resp. dust), MAR2002 | |
| Occupational Exposure Limit-BELGIUM | time-weighted average 6 mg/m3 (inhal. dust), MAR2002 | |
| Occupational Exposure Limit-KOREA | time-weighted average 3 mg/m3 (respirable dust), 2006 | |
| Occupational Exposure Limit-KOREA | time-weighted average 6 mg/m3 (total dust), 2006 | |
| Occupational Exposure Limit-NEW ZEALAND | time-weighted average 3 mg/m3 (respirable dust), 6 mg/m3 (inspirable dust), JAN2002 | |
| Occupational Exposure Limit-THE NETHERLANDS | MAC-TGG 2.5 mg/m3 (respirable dust), 2003 | |
| Occupational Exposure Limit-THE NETHERLANDS | MAC-TGG 5 mg/m3 (total dust), 2003 | |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) | 8H time-weighted average 20 mppcf | CFRGBR 29,1926.55,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors) | 8H time-weighted average 20 mppcf | CFRGBR 41,50-204.50,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry) | 8H time-weighted average 20 mppcf | CFRGBR 29,1910.1000,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) | 8H time-weighted average 20 mppcf | CFRGBR 29,1915.1000,1993 |
NIOSH Documentation and Surveillance
| Organization | Standard | Reference |
|---|---|---|
| National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO SILICATES | SOAPSTONE, res. fraction-air:10H time-weighted average 3 mg/m3 | NIOSH* DHHS #92-100,1992 |
| National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO SILICATES | SOAPSTONE, total dust-air:10H time-weighted average 3 mg/m3 | NIOSH* DHHS #92-100,1992 |
Page last reviewed: November 16, 2018
Content
source: National Institute for Occupational Safety and Health