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NBN ISO 9932:2021
Paper and board — Determination of water vapour transmission rate of sheet materials — Dynamic sweep and static gas methods
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Summary
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.
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.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 09/21/2021 |
| Page Count | 20 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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