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sklademVydáno: 2007
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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| Označení normy: | ISO 21129:2007 |
| Počet stran: | 11 |
| Vydání: | 1 |
| Vydáno: | 2007 |
| Jazyk: | Anglicky |
| Počet stran (Anglicky): | 11 |
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.