A personal cascade impactor: design, evaluation and calibration.

Details

• Personal Author:
  Marple, V. A. ; McCawley MA ; Olin J ; Rubow KL
• Description:
  The design, operation, and evaluation of a cascade impactor suitable for personal sampling were described. The impactor was designed to be compact and lightweight. It could be used with four, six, or eight stages, with particle cut points ranging from 0.51 to 21 microns aerodynamic diameter (AD). The nozzles for the first six stages consisted of six radial slots per stage, and the nozzles for the seventh and eighth stages consisted of 12 circular holes arranged in a radial pattern. The surface between the nozzle slots or holes served as the impaction surface for the stage before it. The impactor was designed to be operated with a sample flow rate of 2 liters per minute, making it compatible for use with existing personal sampler pumps. The personal impactor was evaluated with monodisperse particles, ranging in size from 0.48 to 23 microns AD. It was shown to have high inlet sampling efficiency, sharp cut off characteristics, and low particle loss. The authors conclude that the personal cascade impactor described provides particle size distributions with the same accuracy as larger cascade impactors. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Dust Lung Occupational Exposure Occupational Health Particulate Matter Respiratory System Safety Workplace
• Keywords:
  Airborne-particles Cascade-impactors NIOSH-Author Occupational-exposure Particulate-sampling-methods Pulmonary-system Respirable-dust Workplace-studies
• ISSN:
  0002-8894
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Minnesota ; OSHA Region 3 ; OSHA Region 5 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DRDS - Division of Respiratory Disease Studies
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  48
• Issue:
  6
• NIOSHTIC Number:
  nn:00171443
• Citation:
  Am Ind Hyg Assoc J 1987 Jun; 48(6):532-538
• Contact Point Address:
  Kenneth L. Rubow, Particle Technology Laboratory, Mechanical Engineering Department, University of Minnesota, Minneapolis, MN 55455-0111
• Federal Fiscal Year:
  1987
• 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-512:20e7d1ada177e5e575d1060601f4e5ba48410a2ac7e7f47f9667879f44c64ce6e1c498a806e2228ab8559f6fb691ebb539c4cf836d581cf23b63a48e4d686b8a
• Download URL:
  https://stacks.cdc.gov/view/cdc/185256/cdc_185256_DS1.pdf
• File Type:
  [PDF - 700.21 KB ]