*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : ZH8015000
CHEMICAL NAME           : Zirconium hydride
CAS REGISTRY NUMBER     : 7704-99-6
LAST UPDATED            : 199712
DATA ITEMS CITED        : 24
MOLECULAR FORMULA       : H2-Zr
MOLECULAR WEIGHT        : 93.24
WISWESSER LINE NOTATION : .ZR..H2
 
                       *** HEALTH HAZARD DATA ***
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Intratracheal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 45 gm/kg/26W-I
TOXIC EFFECTS :
   Blood - other changes
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - dehydrogenases
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 37(7),36,1972

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 5 mg(Zr)/m3; STEL 10 mg(Zr)/m3
   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

   ACGIH TLV-Not classifiable as a human carcinogen
   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 5 mg(Zr)/m3
   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:
   3,285,1971

   OSHA PEL (Gen Indu):8H TWA 5 mg(Zr)/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 5 mg(Zr)/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 5 mg(Zr)/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 5 mg(Zr)/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

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-AUSTRALIA:TWA 5 mg(Zr)/m3;STEL 10 mg(Zr)/m3 JAN 1993
   
   OEL-BELGIUM:TWA 5 mg(Zr)/m3;STEL 10 mg(Zr)/m3 JAN 1993
   
   OEL-DENMARK:TWA 5 mg(Zr)/m3 JAN 1993
   
   OEL-FINLAND:TWA 5 mg(Zr)/m3 JAN 1993
   
   OEL-GERMANY:TWA 5 mg(Zr)/m3 JAN 1993
   
   OEL-HUNGARY:STEL 5 mg(Zr)/m3 JAN 1993
   
   OEL-THE NETHERLANDS:TWA 5 mg(Zr)/m3 JAN 1993
   
   OEL-THE PHILIPPINES:TWA 5 mg(Zr)/m3 JAN 1993
   
   OEL-SWITZERLAND:TWA 5 mg(Zr)/m3 JAN 1993
   
   OEL-TURKEY:TWA 5 mg(Zr)/m3 JAN 1993
   
   OEL-UNITED KINGDOM:TWA 5 mg(Zr)/m3;STEL 10 mg(Zr)/m3 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 OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - 82060
       No. of Facilities: 100 (estimated)
       No. of Industries: 2
       No. of Occupations: 3
       No. of Employees: 242 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 82060
       No. of Facilities: 37 (estimated)
       No. of Industries: 2
       No. of Occupations: 2
       No. of Employees: 44 (estimated)
       No. of Female Employees: 5 (estimated)

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

 
                            *** END OF RECORD ***