Abstract
Two families of mathematical models are proposed to represent either the concentration of a gaseous emission in or the accumulated amount exiting from a well-mixed, environmentally controlled test chamber. A thin film model, which seems applicable to such sources as carpet adhesive, etc., has the capability of isolating the true emission rate constant from chamber effects. It has successfully modeled emissions of methyl ethyl ketone, a C 8 alcohol, and butyl propionate from latex caulk. Chamber effects in the form of temporary wall retention were identified for the latter two compounds. An analogous, deep source, diffusionlimited model for plywood, etc., once fitted to a data set, can be used to generalize to other combinations of source surface area, chamber volume, and air exchange rate.
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