" /> permeation tube - CISMeF





Preferred Label : permeation tube;

IUPAC definition : A device used for dynamic preparation of test gas mixtures by means of controlled permeation of a gaseous analyte out of a container through polymer material into a carrier gas stream. These devices containing certain condensable gases (e.g. NO sub 2 /sub , SO sub 2 /sub , etc.) when operated at closely controlled temperatures can be used as primary standards calibrated in terms of the weight loss per unit time.;

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A device used for dynamic preparation of test gas mixtures by means of controlled permeation of a gaseous analyte out of a container through polymer material into a carrier gas stream. These devices containing certain condensable gases (e.g. NO sub 2 /sub , SO sub 2 /sub , etc.) when operated at closely controlled temperatures can be used as primary standards calibrated in terms of the weight loss per unit time.

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30/07/2025


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