Abstract

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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.


General information 

  • Status
     : Published
    Publication date
     : 2021-03
  • Edition
     : 2
    Number of pages
     : 10
  • Technical Committee
     : ISO/TC 6/SC 2 Test methods and quality specifications for paper and board
  • ICS
     :
    85.060 Paper and board

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