Abstract
This document describes general test methods for determining the water vapour transmission rate of sheet materials by means of a dynamic gas method or a static gas method. Depending on the method and specific apparatus employed, materials up to 38 mm thick and with water vapour transmission rates in the range from 0,05 g/(m2·d) to 65 g/(m2·d) can be tested. The basis of the function of the instrumental techniques is briefly described. Advice on calibration is given in Annex B.
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General information
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Status: PublishedPublication date: 2021-03Stage: International Standard published [60.60]
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Edition: 2Number of pages: 10
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Technical Committee :ISO/TC 6/SC 2ICS :85.060
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Life cycle
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WithdrawnISO 9932:1990
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