On-Filter Analysis of Quartz in Respirable Coal Dust by Infrared Absorption and X-Ray Diffraction

Details

• Personal Author:
  Freedman, Robert W. ; Land HW ; Toma SZ
• Description:
  An infrared spectometric method and an independent X-ray diffraction method are developed for the analysis of alpha-quartz in airborne respirable coal dust. Sensitivity is such that the procedures can be used for analysis of the material from a single membrane filter similar to the one used for personal samplers by the Mining Enforcement and Safety Administration's enforcement program. Sensitivity down to less than 10 micrograms of quartz is obtainable. The accuracy of the methods is limited by the non-availability of a true quartz standard. In both methods dust is transferred ultrasonically from the collection filter to a small area of a second filter which is relatively infrared-transparent and has a weak X-ray background. The technique provides a substantial increase in area concentration and attendant sensitivity. Both methods, in principle, are capable of use with a wide variety of solid materials such as respirable pure quartz and coal dust. [Description provided by NIOSH]
• Subjects:
  Aerosols Air Pollutants, Occupational Coal Coal Mining Dust Mining Occupational Health Particulate Matter Quartz Respiratory System Safety Silicon Dioxide

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• Keywords:
  Aerosol-particles Airborne-dusts Analytical-methods Coal-mining Dust-collection Dust-control Dust-counting Dust-sampling Inhalation Measurement-instrumentation Mineral-dusts Mining-industry Particle-size-analysis Particulate-dust Quartz-dust Respirable-dust Sampling-equipment Sampling-techniques

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• Series:
  Mining Publications
• ISSN:
  0002-8894
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  411-418
• Volume:
  35
• Issue:
  7
• NIOSHTIC Number:
  nn:00025901
• Citation:
  Am Ind Hyg Assoc J 1974 Jul; 35(7):411-418
• CAS Registry Number:
  Quartz (SiO2) (CAS RN Quartz (SiO2) (CAS RN 14808-60-7))
• Federal Fiscal Year:
  1974
• Peer Reviewed:
  True
• Source Full Name:
  American Industrial Hygiene Association Journal
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6d09e357e4e17ac9b0aeb2c05642df387aad90f8bf3db5fb4caea85007d3f2a6e8673b82e05b7e8ec13152f5edd681568bd592017598ad6f4cb48dfca342c223
• Download URL:
  https://stacks.cdc.gov/view/cdc/219299/cdc_219299_DS1.pdf
• File Type:
  [PDF - 868.89 KB ]