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ISO 21129:2007

Hygrothermal performance of building materials and products - Determination of water-vapour transmission properties - Box method
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ISO 21129:2007

Hygrothermal performance of building materials and products - Determination of water-vapour transmission properties - Box method

PUBLISH DATE 2007
ISO 21129:2007

ISO 21129:2007 specifies a box method for determining the water-vapour permeability of building materials.

The box method is used primarily to measure the water-vapour permeance of materials that have low water-vapour resistance, in which the influence of the surface-humidity transmission-resistance cannot be ignored.

SDO ISO: International Organization for Standardization
Document Number ISO 21129
Publication Date July 15, 2007
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 163/SC 1
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