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sklademVydáno: 2021-06-14
BS ISO 9932:2021 - TC
Tracked Changes. Paper and board. Determination of water vapour transmission rate of sheet materials. Dynamic sweep and static gas methods
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| Označení normy: | BS ISO 9932:2021 - TC |
| Počet stran: | 106 |
| Vydáno: | 2021-06-14 |
| ISBN: | 978 0 539 17927 9 |
| Status: | Tracked Changes |
DESCRIPTION
BS ISO 9932:2021 - TC
This standard BS ISO 9932:2021 - TC Tracked Changes. Paper and board. Determination of water vapour transmission rate of sheet materials. Dynamic sweep and static gas methods is classified in these ICS categories:
- 85.060 Paper and board
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.