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ISO 21129:2007
ISO 21129:2007 Hygrothermal performance of building materials and products – Determination of water-vapour transmission properties – Box method
CDN $115.00
Description
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.
Edition
1
Published Date
2007-07-04
Status
PUBLISHED
Pages
11
Language
English
Format
Secure PDF
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Abstract
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.
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