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Registry of Toxic Effects of Chemical Substances (RTECS)

Silicate, mica

RTECS #

VV8760000

CAS #

12001-26-2

Updated

September 201

Molecular Weight

N/R

Molecular Formula

N/R

Synonyms

Mica
Silicates : mica (ACGIH:OSHA)
Soapstone
Suzorite mica

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 3 mg/m3 (resp)DTLVS* TLV/BEI,2013

Standards and Regulations

OrganizationStandardReference
Mine Safety and Health Administration (MSHA) STANDARD-airtime-weighted average 20 mppcfDTLWS* 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-AUSTRALIAtime-weighted average 2.5 mg/m3 (inspirable dust), JUL2008
Occupational Exposure Limit-BELGIUMtime-weighted average 3 mg/m3, MAR2002
Occupational Exposure Limit-MEXICOtime-weighted average 3 mg/m3 (respirable), 2004
Occupational Exposure Limit-NEW ZEALANDtime-weighted average 3 mg/m3 (respirable dust), JAN2002
Occupational Exposure Limit-PERUtime-weighted average 3 mg/m3, JUL2005
Occupational Exposure Limit-SWITZERLANDMAK-week 3 mg/m3, resp, JAN2011
Occupational Exposure Limit-THE NETHERLANDSMAC-TGG 2.5 mg/m3 (respirable dust), 2003
Occupational Exposure Limit-THE NETHERLANDSMAC-TGG 5 mg/m3 (total dust), 2003
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 10 mg/m3 (inhal. dust), OCT2007
Occupational Exposure Limit-UNITED KINGDOMtime-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 dustCFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors)8H time-weighted average 20 mppcfCFRGBR 41,50-204.50,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry)8H time-weighted average 20 mppcf, respirable dustCFRGBR 29,1910.1000,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards)8H time-weighted average 20 mppcf, respirable dustCFRGBR 29,1915.1000,1993

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO SILICATES (<1% CRYST. SILICA)MICA-air:10H time-weighted average 3 mg/m3NIOSH* DHHS #92-100,1992
National Occupational Exposure Survey 1983Hazard 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 1983Hazard 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 1974Hazard 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

OrganizationReference
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001

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