*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : VV8760000 CHEMICAL NAME : Silicate, mica CAS REGISTRY NUMBER : 12001-26-2 LAST UPDATED : 199712 DATA ITEMS CITED : 19 SYNONYMS/TRADE NAMES : * Silicates : mica * Suzorite mica *** REVIEWS *** ACGIH TLV-TWA 3 mg/m3, total dust DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 20 mppcf DTLWS* "Documentation of the Threshold Limit Values for Substances in Workroom Air," Supplements. For publisher information, see 85INA8. Volume(issue)/page/year: 3,33,1973 OSHA PEL (Gen Indu):8H TWA 20 mppcf, respirable dust CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 20 mppcf, respirable dust CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 20 mppcf, respirable dust CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 20 mppcf CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 2.5 mg/m3 JAN 1993 OEL-BELGIUM:TWA 3 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 5 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 3 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 1 mg/m3 (resp. dust) JAN 1993 OEL-UNITED KINGDOM:TWA 10 mg/m3 (total dust) JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO SILICATES (<1% CRYST. SILICA): MICA-air:10H TWA 3 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 48535 No. of Facilities: 12333 (estimated) No. of Industries: 135 No. of Occupations: 98 No. of Employees: 169296 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X1564 No. of Facilities: 9 (estimated) No. of Industries: 2 No. of Occupations: 3 No. of Employees: 296 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 48535 No. of Facilities: 24854 (estimated) No. of Industries: 179 No. of Occupations: 103 No. of Employees: 348592 (estimated) No. of Female Employees: 36684 (estimated) *** STATUS IN U.S. *** EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998 *** END OF RECORD ***