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Theoretical Assessment of a Non-destructive Ethane Gas Test for Production Control of Military Canisters (U)

Shankar Bellur NarayanBrian Howard Harrison

出版	National Defence Canada, Defence Research Establishment Ottawa, 1994
URL	http://books.google.com.hk/books?id=V_mE0AEACAAJ&hl=&source=gbs_api

註釋In the manufacture of military gas mask canisters, it would be extremely valuable to have a non-destructive gas test that can be used on every canister to measure the performance of the gas-adsorbing charcoal bed against vapours and to assure its integrity. A non-destructive gas test employing an ethane pulse has been proposed for this quality control test. The purpose of this report is to establish whether this new test can identify defects in the charcoal bed and whether it is as sensitive as the normal gas tests that are employed but are destructive in nature. The effectiveness of the test is theoretically assessed in this report by modelling the effect of the presence of defects in the carbon bed on its performance. The model has been modified to predict the adsorption behaviour of a dry ethane pulse or a dry n-octane step challenge on uneven, non-uniform, or short beds.