*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : YO7840000
CHEMICAL NAME           : Tungstic acid
CAS REGISTRY NUMBER     : 11105-11-6
LAST UPDATED            : 199712
DATA ITEMS CITED        : 17
MOLECULAR FORMULA       : H2-O4-W
MOLECULAR WEIGHT        : 249.87
WISWESSER LINE NOTATION : ..H2.W-O4
COMPOUND DESCRIPTOR     : Primary Irritant
SYNONYMS/TRADE NAMES :
   * Kyselina wolframova
 
                       *** HEALTH HAZARD DATA ***
 
                      ** SKIN/EYE IRRITATION DATA **
 
TYPE OF TEST            : Standard Draize test
ROUTE OF EXPOSURE       : Administration into the eye
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 500 mg/24H
REACTION SEVERITY       : Mild
REFERENCE :
   28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku,"
   Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu
   Praha, Czechoslovakia, 1972  Volume(issue)/page/year: -,19,1972

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

                    *** U.S. STANDARDS AND REGULATIONS ***
 
   MSHA STANDARD-air:TWA 5 mg(W)/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:
   3,272,1971

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-AUSTRALIA:TWA 5 mg(W)/m3;STEL 10 mg(W)/m3 JAN 1993
   
   OEL-BELGIUM:TWA 5 mg(W)/m3;STEL 10 mg(W)/m3 JAN 1993
   
   OEL-DENMARK:TWA 5 mg(W)/m3 JAN 1993
   
   OEL-FINLAND:TWA 5 mg(W)/m3 JAN 1993
   
   OEL-THE NETHERLANDS:TWA 5 mg(W)/m3 JAN 1993
   
   OEL-THE PHILIPPINES:TWA 1 mg(W)/m3 JAN 1993
   
   OEL-SWEDEN:TWA 5 mg(W)/m3 JAN 1993
   
   OEL-SWITZERLAND:TWA 5 mg(W)/m3 JAN 1993
   
   OEL-UNITED KINGDOM:TWA 5 mg(W)/m3;STEL 10 mg(W)/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 RECOMMENDED EXPOSURE LEVEL (REL) :
   NIOSH REL TO TUNGSTEN, soluble-air:10H TWA 1 mg(W)/m3;STEL 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 - 82043
       No. of Facilities: 621 (estimated)
       No. of Industries: 1
       No. of Occupations: 3
       No. of Employees: 3435 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 82043
       No. of Facilities: 81 (estimated)
       No. of Industries: 3
       No. of Occupations: 7
       No. of Employees: 5205 (estimated)
       No. of Female Employees: 1480 (estimated)

 
                            *** END OF RECORD ***