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Tungsten carbide, mixed with cobalt (85%:15%)

RTECS #
YO7350000
CAS #
11107-01-0
See: NMAM or OSHA Methods
Updated
December 2016
Molecular Weight
N/R
Molecular Formula
N/R
Synonyms
BK15

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
In Vitro/Human, lung Inhibitor Concentration Low: 1 mg/mL/48HIn Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc.TXAPA9 278,1,2014
In Vitro/Human, lung Inhibitor Concentration Low: 100 mg/mL/1HIn Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc.TXAPA9 278,1,2014
In Vitro/Human, lung Inhibitor Concentration Low: 1000 mg/mL/12HIn Vitro Toxicity Studies: Apoptosis in vitroTXAPA9 278,1,2014
intratracheal/rat lowest published lethal dose: 50 mg/kgNTIS** AEC-TR-6710

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 0.02 mg(Co)/m3DTLVS* TLV/BEI,2013
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 5 mg(week)/m3;short term exposure limit 10 mg(week)/m3DTLVS* TLV/BEI,2013
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-Confirmed animal carcinogenDTLVS* TLV/BEI,2013
TOXICOLOGY REVIEWMUTAEX 15,431,2000

Standards and Regulations

OrganizationStandardReference
Occupational Exposure Limit-BELGIUMtime-weighted average 5 mg(W)/m3, short term exposure limit 10 mg(W)/m3, MAR2002
Occupational Exposure Limit-HUNGARYtime-weighted average 0.1 mg(Co)/m3, short term exposure limit 0.4 mg(Co)/m3, SEP2000
Occupational Exposure Limit-NEW ZEALANDtime-weighted average 1 mg(W)/m3, JAN2002
Occupational Exposure Limit-SWITZERLANDMAK-week 5 mg(W)/m3, inhal, JAN2011
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 0.1 mg(Co)/m3, sen, OCT2007
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 5 mg(W)/m3;short term exposure limit 10 mg(W)/m3, OCT2007

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO CEMENTED TUNGSTEN CARBIDE-air10H time-weighted average 0.1 mg(Co)/m3NIOSH* DHHS #92-100,1992
Page last reviewed: November 16, 2018