Active standard | Published: 04/07/2007

ISO 21129:2007

Hygrothermal performance of building materials and products — Determination of water-vapour transmission properties — Box method
(Performance hydrothermique des matériaux et produits pour le bâtiment — Détermination des propriétés de transmission de la vapeur d´eau — Méthode de box)

Available languages: English

Available design: electronic design (pdf), Print design

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Detail information

Designation: ISO 21129:2007

Publication date: 04/07/2007

Pages: 11

Country: International technical standard

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Anotation

Description / 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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