*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : EW4025000
CHEMICAL NAME           : Calcium silicofluoride
CAS REGISTRY NUMBER     : 16925-39-6
LAST UPDATED            : 199701
DATA ITEMS CITED        : 8
MOLECULAR FORMULA       : Ca.F6-Si
MOLECULAR WEIGHT        : 182.17
WISWESSER LINE NOTATION :  CA  SI-F6
SYNONYMS/TRADE NAMES :
   * Calcium fluorosilicate
   * Calcium fluosilicate
   * Calcium hexafluorosilicate
   * Silicate(2-), hexafluoro-, calcium (1:1)

                              *** REVIEWS ***
 
   TOXICOLOGY REVIEW
   AMSSAQ Acta Medica Scandinavica, Supplement.  (Almqvist & Wiksell, POB
   45150, S-10430 Stockholm, Sweden)  No.1-730, 1921-88.
   Volume(issue)/page/year: 400,5,1963

                    *** U.S. STANDARDS AND REGULATIONS ***
 
   OSHA PEL (Gen Indu):8H TWA 2.5 mg(F)/m3
   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 2.5 mg(F)/m3
   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 2.5 mg(F)/m3
   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 2.5 mg(F)/m3
   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

         *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***

NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
   NIOSH REL TO FLUORIDES, INORGANIC-air:10H TWA 2.5 mg(F)/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 :
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - X3988
       No. of Facilities: 1 (estimated)
       No. of Industries: 1
       No. of Occupations: 5
       No. of Employees: 39 (estimated)
       No. of Female Employees: 2 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY

 
                            *** END OF RECORD ***