Silicate, mica
RTECS #
VV8760000
CAS #
Updated
September 2013
Molecular Weight
N/R
Molecular Formula
N/R
Synonyms
Mica
Silicates : mica (ACGIH:OSHA)
Soapstone
Suzorite mica
Silicates : mica (ACGIH:OSHA)
Soapstone
Suzorite mica
Reviews
| Organization | Standard | Reference |
|---|---|---|
| American Conference of Governmental Industrial Hygienists (ACGIH) | Threshold Limit Value-time-weighted average 3 mg/m3 (resp) | DTLVS* TLV/BEI,2013 |
Standards and Regulations
| Organization | Standard | Reference |
|---|---|---|
| Mine Safety and Health Administration (MSHA) STANDARD-air | time-weighted average 20 mppcf | DTLWS* 3,33,1973 |
| Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV; | ||
| Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV | ||
| Occupational Exposure Limit-AUSTRALIA | time-weighted average 2.5 mg/m3 (inspirable dust), JUL2008 | |
| Occupational Exposure Limit-BELGIUM | time-weighted average 3 mg/m3, MAR2002 | |
| Occupational Exposure Limit-MEXICO | time-weighted average 3 mg/m3 (respirable), 2004 | |
| Occupational Exposure Limit-NEW ZEALAND | time-weighted average 3 mg/m3 (respirable dust), JAN2002 | |
| Occupational Exposure Limit-PERU | time-weighted average 3 mg/m3, JUL2005 | |
| Occupational Exposure Limit-SWITZERLAND | MAK-week 3 mg/m3, resp, JAN2011 | |
| 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 Exposure Limit-UNITED KINGDOM | time-weighted average 10 mg/m3 (inhal. dust), OCT2007 | |
| Occupational Exposure Limit-UNITED KINGDOM | time-weighted average 0.8 mg/m3 (resp. dust), OCT2007 | |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) | 8H time-weighted average 20 mppcf, respirable dust | 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, respirable dust | CFRGBR 29,1910.1000,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) | 8H time-weighted average 20 mppcf, respirable dust | 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 (<1% CRYST. SILICA) | MICA-air:10H time-weighted average 3 mg/m3 | NIOSH* DHHS #92-100,1992 |
| National Occupational Exposure Survey 1983 | Hazard Code X1564; Number of Industries 2; Total Number of Facilities 9; Number of Occupations 3; Total Number of Employees Exposed 296 | |
| National Occupational Exposure Survey 1983 | Hazard Code 48535; Number of Industries 179; Total Number of Facilities 24854; Number of Occupations 103; Total Number of Employees Exposed 348592; Total Number of Female Employees Exposed 36684 | |
| National Occupational Hazard Survey 1974 | Hazard Code 48535; Number of Industries 135; Total Number of Facilities 12333; Number of Occupations 98; Total Number of Employees Exposed 169296 |
Status in Federal Agencies
| Organization | Reference |
|---|---|
| EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001 |
Page last reviewed: November 16, 2018
Content
source: National Institute for Occupational Safety and Health