RTECS NUMBER : YO7175000
CHEMICAL NAME : Tungsten
CAS REGISTRY NUMBER : 7440-33-7
LAST UPDATED : 199710
DATA ITEMS CITED : 21
MOLECULAR FORMULA : W
MOLECULAR WEIGHT : 183.85
WISWESSER LINE NOTATION : WO
COMPOUND DESCRIPTOR : Reproductive Effector
Primary Irritant
SYNONYMS/TRADE NAMES :
* Wolfram
*** HEALTH HAZARD DATA ***
** SKIN/EYE IRRITATION DATA **
TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration onto the skin
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
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
** ACUTE TOXICITY DATA **
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 5 gm/kg
TOXIC EFFECTS :
Vascular - regional or general arteriolar or venous dilation
Liver - other changes
Blood - other changes
REFERENCE :
INMEAF Industrial Medicine. (Chicago, IL) V.1-18, 1932-49. For publisher
information, see IOHSA5. Volume(issue)/page/year: 15,482,1946
** REPRODUCTIVE DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 1210 ug/kg
SEX/DURATION : female 35 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
resorbed implants per total number of implants)
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 42(8),30,1977
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 1160 ug/kg
SEX/DURATION : female 30 week(s) pre-mating
female 1-20 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
FATOAO Farmakologiya i Toksikologiya (Moscow). For English translation, see
PHTXA6 and RPTOAN. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.2-
1939- Volume(issue)/page/year: 41,620,1978
*** U.S. STANDARDS AND REGULATIONS ***
MSHA STANDARD-air:TWA 1 mg/m3 (soluble)
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
MSHA STANDARD:air-TWA 5 mg/m3 (insoluble)
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-DENMARK:TWA 5 mg/m3 JAN 1993
OEL-RUSSIA:STEL 2 mg/m3 JAN 1993
OEL-SWEDEN:TWA 5 mg/m3 JAN 1993
OEL-UNITED KINGDOM:TWA 5 mg/m3;STEL 10 mg/m3 JAN 1993
*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***
NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
NIOSH REL TO TUNGSTEN, insoluble-air:TWA 5 mg(W)/m3;STEL 10 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 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 - 74980
No. of Facilities: 530 (estimated)
No. of Industries: 20
No. of Occupations: 24
No. of Employees: 4735 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - X5928
No. of Facilities: 53 (estimated)
No. of Industries: 4
No. of Occupations: 11
No. of Employees: 3907 (estimated)
No. of Female Employees: 1258 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - X7685
No. of Facilities: 174 (estimated)
No. of Industries: 5
No. of Occupations: 15
No. of Employees: 4822 (estimated)
No. of Female Employees: 3021 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - 74980
No. of Facilities: 1623 (estimated)
No. of Industries: 52
No. of Occupations: 43
No. of Employees: 38323 (estimated)
No. of Female Employees: 3591 (estimated)