Walk-through survey report: control technology for mine assay laboratories at Rabbit Creek Mine, Winnemucca, Nevada.

Details

• Personal Author:
  Hall, Ronald M.
• Description:
  A study was conducted to document and evaluate effective technologies for the control of potential health hazards at the Mine Assay Laboratories for Rabbit Creek Mine (SIC-8734) located in Winnemucca, Nevada. The company was involved in gold mining and employed about 230 workers, eight of whom worked in the assay laboratory operation, performing about 100 fire assay samples per day. Potential hazards included exposure to lead (7439921), crystalline silica (14808607), respirable dust, mercury (7439976) and arsenic (7440382). The company used local exhaust ventilation and partial enclosures in the sample preparation, flux mixing, and fire assay areas. HEPA filtered half mask respirators were worn during hazardous tasks. The sample splitter in the sample preparation area was located in a ventilated hood. The crusher was equipped with down draft local exhaust ventilation. Compressed air at 60 pounds per square inch was used to clean dust off the work area and equipment. Ear plugs or ear muffs were worn in the sample preparation room. The author concludes that this site would be suitable for an in depth evaluation.
• Subjects:
  Accidents, Occupational Hazardous Substances Occupational Exposure Occupational Health Safety
• Keywords:
  Control-technology Dust-control Field-Study Fire-assays Heavy-metals Laboratory-workers Mining-industry NIOSH-Author NIOSH-Survey Personal-protective-equipment Region-9 Ventilation-systems

  More +
• DOI:
  https://doi.org/10.26616/NIOSHECTB19813a
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Field Studies ; Control Technology
• Place as Subject:
  Nevada ; Ohio ; OSHA Region 5 ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DPSE - Division of Physical Sciences and Engineering
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-9
• NIOSHTIC Number:
  nn:00218658
• Citation:
  Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, ECTB 198-13a, 1994 Feb; :1-9
• CAS Registry Number:
  Lead (CAS RN 7439-92-1) ; Quartz (SiO2) (CAS RN 14808-60-7) ; Mercury (CAS RN 7439-97-6) ; Arsenic (CAS RN 7440-38-2)
• Federal Fiscal Year:
  1994
• Peer Reviewed:
  False
• NAICS and SIC Codes:
  8734 - Testing laboratories - (SIC)
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:731a1f7fc21093428980cfab68c0c16924746db8e869173a5e36ce332ef3af4480eaf780ce0584c6ed2705a279afac78ce0773d54c9366e11d9b477e1c090343
• Download URL:
  https://stacks.cdc.gov/view/cdc/180862/cdc_180862_DS1.pdf
• File Type:
  [PDF - 364.04 KB ]