Comparative measurements with various instruments: problems in the evaluation of dust exposures in the hard coal mining industry.

Details

• Personal Author:
  Bauer D ; Robock K
• Description:
  A review was provided of the development of instrumentation used to measure dust exposures in the hard coal mining industry. The tyndalloscope was used for dust exposure monitoring in the mining industry from the middle of the 1950s through 1973. Problems associated with this equipment were the dependence of scattering light intensity, not only on concentration but also on particle size. The MPG-II equipped with a horizontal elutriator was used in the Federal Republic of Germany to measure maximum workplace concentrations. The TBF-50, a double cyclone instrument was used in routine measurements as well. The dependence of cyclone efficiencies on suspended dust uptake was a problem which was also encountered in personal dust samplers such as the Simpeds 70-MK-II. Other items considered in this review were the conversion factors for TBF-50 with and without filters, conversion factors for Simpeds and MPG-II, ash proportion obtained by MPG-II in mass percent, the arrangement of dust measuring instruments in comparative measurements, conversion relation for different faces at low concentrations, and the relation between gravimetric and tyndallometric intensity values of respirable dust concentrations.
• Subjects:
  Accidents, Occupational Air Pollutants, Occupational Amines Occupational Health Safety
• Keywords:
  Airborne Particles Air Quality Monitoring Air Samplers Air Sampling Equipment Analytical Instruments Analytical Methods Analytical Processes Dust Samplers Dust Sampling Work Environment
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Conference/Symposia Proceedings
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  625-635
• NIOSHTIC Number:
  nn:00198472
• Citation:
  Proceedings of the VIIth International Pneumoconioses Conference, August 23-26, 1988, Pittsburgh, Pennsylvania, USA. Atlanta, GA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 90-108, 1990 Sep; (Part I):625-635
• Federal Fiscal Year:
  1990
• Peer Reviewed:
  False
• Part Number:
  I
• Source Full Name:
  Proceedings of the VIIth International Pneumoconioses Conference, August 23-26, 1988, Pittsburgh, Pennsylvania, USA
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:64133b5abb3a58fc0521bf60c17ff6ff093a90a02e4e9dac26011f5fca65cfd1c3284c1f17ae97540ed879716a3a1f5cc1b0033ac9bc3c0164ff1c890d3526db
• Download URL:
  https://stacks.cdc.gov/view/cdc/180535/cdc_180535_DS1.pdf
• File Type:
  [PDF - 267.78 KB ]