6. Sample Collection Device Methods for Gases and Vapors

  1. Henry J. McDermott

Published Online: 11 OCT 2004

DOI: 10.1002/0471670588.ch6

Air Monitoring for Toxic Exposures, Second Edition

Air Monitoring for Toxic Exposures, Second Edition

How to Cite

McDermott, H. J. (2004) Sample Collection Device Methods for Gases and Vapors, in Air Monitoring for Toxic Exposures, Second Edition, John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/0471670588.ch6

Author Information

  1. H. J. McDermott, Inc., Moraga, California, USA

Publication History

  1. Published Online: 11 OCT 2004
  2. Published Print: 3 SEP 2004

ISBN Information

Print ISBN: 9780471454359

Online ISBN: 9780471670582

SEARCH

Keywords:

  • charcoal tubes;
  • silica gel tubes;
  • sorbent tubes;
  • sampling pumps;
  • impingers;
  • bubblers;
  • passive dosimeters;
  • NIOSH methods

Summary

Sample Collection Device Methods for Gases and Vapors are the mainstay for exposure monitoring for the large number of gases and vapors encountered in the occupational setting and general ambient environment. There are two major categories of these methods: active sampling that involve a pump, and passive methods that collect the contaminant via diffusion or (in fewer cases) permeation. A variety of sampling devices are used to collect gases and vapors for subsequent laboratory analysis. These include sorbent tubes (charcoal, and other materials), liquid-filled impingers and passive dosimeters. In each case the proper sampling device is selected based on the chemicals to be collected and the specific sampling situation. Coordination with the analytical laboratory is needed to ensure that the concentration of airborne chemicals can be accurately determined.