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Homepage>ISO Standards>ISO 21129:2007-Hygrothermal performance of building materials and products — Determination of water-vapour transmission properties — Box method
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download between 0-24 hoursReleased: 2007
ISO 21129:2007-Hygrothermal performance of building materials and products — Determination of water-vapour transmission properties — Box method

ISO 21129:2007

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

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Standard´s number:ISO 21129:2007
Pages:11
Edition:1
Released:2007
Language:English
DESCRIPTION

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.
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