Hygrothermal performance of building materials and products—Determination of water-vapour transmission properties—Box method
IDT ISO 21129:2007
全国绝热材料标准化技术委员会(SAC/TC 191)
本标准规定了通过箱式法来测定建筑材料水蒸气渗透性能的试验方法。箱式法主要适用于表面透湿阻不能被忽略的低透湿阻材料。
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