Criteria for a Recommended Standard: Occupational Exposure to Tungsten and Cemented Tungsten Carbide [1977]

Details

• Journal Article:
  National Institute for Occupational Safety and Health
• Corporate Authors:
  National Institute for Occupational Safety and Health
• Description:
  The recommended standard compiled by NIOSH requires that occupational exposure to insoluble tungsten (7440337) and to soluble tungsten shall be controlled so than employees are not exposed at concentrations greater than 5 milligrams and 1 milligram, respectively, of tungsten per cubic meter of air, determined as a time weighted average (TWA) concentration for up to a 10 hour shift in a 40 hour week. Recommended levels for occupational exposure to dust of cemented tungsten carbide containing more than 2 percent cobalt (7440484) or more than 0.3 percent nickel (7440020) are established at 0.1 milligram of cobalt and 15 micrograms of nickel per cubic meter of air, determined as a TWA concentration for up to a 10 hour shift in a 40 hour week. Recommendations are also made for sampling and analysis, medical surveillance and counseling, engineering controls, work practices, and personal protective clothing and equipment. (Contract No. 099-74-0031) [Description provided by NIOSH]
• Subjects:
  Dust Metals Metals, Heavy Occupational Exposure Occupational Health Poisoning Preventive Medicine Safety Toxicology Tungsten Tungsten Compounds

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• Keywords:
  NIOSH-Criteria-Document; NIOSH-Contract; Contract-099-74-0031; Industrial-hygiene; Toxicology; Air-quality-control; Exposure-limits; Analytical-methods; Sampling-methods; Preventive-medicine; Safety-engineering; Refractory-metals; Metal-poisoning; Dust-control; Heavy-metals
• Source:
  Rockville, MD: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, DHEW (NIOSH) Publication No. 77-227, 1977 Sep; :1-182
• Series:
  NIOSH Numbered Publications
• Subseries:
  Criteria Document
• DOI:
  https://doi.org/10.26616/NIOSHPUB77227
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Funding:
  NIOSH Contract 099-74-0031
• Genre:
  Standards
• Place as Subject:
  Maryland ; OSHA Region 3
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DCDSD - Division of Criteria Documents and Standards Developments
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  183 pdf pages
• NIOSHTIC Number:
  nn:00074596
• NTIS Accession Number:
  PB-275594
• CAS Registry Number:
  Cobalt (CAS RN 7440-48-4) ; Nickel (CAS RN 7440-02-0) ; Tungsten (CAS RN 7440-33-7)
• Federal Fiscal Year:
  1977
• Performing Organization:
  SRI International
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health Guidelines and Recommendations
• Main Document Checksum:
  urn:sha-512:8aa4605ffa9c686fa9e9fbc527d1dcbdee4498ed3b8d6660bc7b794d647d383b2569337c230bc6443888b01e4caf96c8925e52d972f609fe59d9e74bfe76310d
• Download URL:
  https://stacks.cdc.gov/view/cdc/19383/cdc_19383_DS1.pdf
• File Type:
  [PDF - 2.62 MB ]