What method(s) are used to generate concentration data in vapor from the GORE® Module?
Several methods exist in the literature (e.g., ASTM, MDHS, NIOSH, and others) which document clearly the procedure to calculate vapor concentration data from a passive, sorbent-based sampler such as the GORE® Module. These methods describe the requirements to determine the uptake rate of the sampler over time (volume of vapor), and correction factors for the sampler, sorbent and analytical method. Combined with the mass desorbed from the sampler, the concentration is readily calculated. The body of literature in general on passive sampling and concentration data reporting is quite large, and stems from decades of research in the industrial hygiene arena.
