Replacement of filters for respirable quartz measurement in coal mine dust by infrared spectroscopy

Details

• Personal Author:
  Chisholm WP ; Farcas D ; Harper M ; Lee T ; Soo J-C
• Description:
  The objective of the present study is to compare and characterize nylon, polypropylene (PP), and polyvinyl chloride (PVC) membrane filters that might be used to replace the vinyl/acrylic copolymer (DM-450) filter currently used in the Mine Safety and Health Administration (MSHA) P-7 method (Quartz Analytical Method) and the National Institute for Occupational Safety and Health (NIOSH) Manual of Analytical Methods 7603 method (QUARTZ in coal mine dust, by IR re-deposition). This effort is necessary because the DM-450 filters are no longer commercially available. For example, the MSHA Pittsburgh laboratory alone analyses annually approximately 15,000 samples according to the MSHA P-7 method that requires DM-450 filters. There is an impending shortage of DM-450 filters. Membrane filters suitable for on-filter analysis should have high infrared (IR) transmittance in the spectral region 600-1000 cm(-1). Nylon (47 mm, 0.45 microm pore size), PP (47 mm, 0.45 microm pore size) and PVC (47 mm, 5 microm pore size) filters meet this specification. Limits of detection and limits of quantification were determined from Fourier transform infrared spectroscopy (FTIR) measurements of blank filters. The average measured quartz mass and coefficient of variation were determined from test filters spiked with respirable alpha-quartz following MSHA P-7 and NIOSH 7603 methods. Quartz was also quantified in samples of respirable coal dust on each test filter type using the MSHA and NIOSH analysis methods. The results indicate that PP and PVC filters may replace the DM-450 filters for quartz measurement in coal dust by FTIR. PVC filters of 5 microm pore size was seemed to be suitable replacement although their ability to retain small particulates should be checked by filter experiment. [Description provided by NIOSH]
• Subjects:
  Coal Dust Laboratories Manufacturing And Industrial Facilities Mining Occupational Health Particulate Matter Polymers Quartz Safety Silicon Dioxide Spectrum Analysis

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• Keywords:
  Analytical-instruments Analytical-Method Analytical-methods Author Keywords: Coal Mine Dust Coal-dust Filter-materials Filter-membranes Filters Infrared-spectroscopy Laboratory-testing Materials-testing Measurement-equipment Mining-industry Nylon Filter Particulate-dust Particulate-sampling-methods Polypropylene Filter Polyvinyl Chloride Filter Propylenes Quartz Quartz-dust Respirable-dust Respirable Silica Silica-dusts Spectrographic-analysis

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• ISSN:
  1545-9624
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  13
• Issue:
  2
• NIOSHTIC Number:
  nn:20046731
• Citation:
  J Occup Environ Hyg 2016 Feb; 13(2):D16-D22
• Contact Point Address:
  Taekhee Lee, Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, 1095 Willowdale Road, M/S 3030, Morgantown, West Virginia 26505, USA
• Email:
  fwc8@cdc.gov
• CAS Registry Number:
  1-Propene, homopolymer (CAS RN 9003-07-0) ; Poly(vinyl chloride) (CAS RN 9002-86-2) ; Quartz (SiO2) (CAS RN 14808-60-7)
• Federal Fiscal Year:
  2016
• NORA Priority Area:
  Construction ; Mining
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Occupational and Environmental Hygiene
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:83367dd06490d07050dc00e081ece3f6a207f874e87e63f27f7b99af7ceabc29b9617c804e80932da7244c223217b561e3571877d3d414960212ffd9fbe09737
• Download URL:
  https://stacks.cdc.gov/view/cdc/202065/cdc_202065_DS1.pdf
• File Type:
  [PDF - 1.28 MB ]