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Considerations for Diffusion Samplers Versus Active Sampling Approaches for Organic Vapors

Considerations For Diffusion Samplers Versus Active Sampling Approaches For Organic Vapors

Tuesday, April 14, 2015 - 1:30 P.M. Eastern

About this webinar:

Air monitoring is one of the fundamental tools used to evaluate workplace and environmental air contaminants. The data provided by monitoring is necessary to establish compliance with relevant occupational exposure limits (OELs) or other air quality standards. The data is also utilized to establish proper engineering or administrative controls and to select appropriate respiratory protection.

While OSHA has specified active sampling, with pumps and sorbent tubes, as the standard technique for evaluating most gases and vapors in the workplace, diffusion samplers have gained acceptance since the late 1970s as an alternative acceptable technique. Diffusion samplers have been validated in several OSHA methods over the last few years.

Selecting an air monitoring technique is a major component of an overall air sampling strategy. The purpose of this presentation is to provide a basic overview of active and diffusion sampling for organic vapor compounds. The presentation will include a discussion of advantages and disadvantages of these techniques, as well as a review of pitfalls to avoid along the way. These techniques should be considered to be complementary, rather than one being better or more preferable than the other.

Topics the presentation will cover:

  • Explanation of Active Sampling
  • Explanation of Diffusion Sampling
  • Fick’s First Law of Diffusion
  • Examples of Organic Vapor Diffusion Samplers
  • Advantages of Active and Diffusion Sampling
  • Disadvantages of Active and Diffusion Sampling
  • Some Pitfalls to Avoid

Who should attend?

  • Safety Managers
  • Field Sampling Personnel
  • Indoor Air Quality Consultants
  • Industrial Hygienists
  • Environmental Consultants
  • Occupational Health Professionals
  • Risk Managers

A question and answer session will immediately follow the presentation. At the conclusion of each webinar, you will be asked for your feedback and opinions for future webinar topics to be developed by TestAmerica. 

The Presenter:

Mike McGee, MS, CIH

Industrial Hygiene

Laboratory Director, TestAmerica

To view a recorded version of this webinar, please contact info@testamericawebinars.com.