Moisture Proofness (abbreviated as: MP): Moisture permeability is expressed in units of g/m2/24h. It refers to the formation of a specific humidity difference on both sides of the sample under certain standard laboratory conditions, and water vapor passes through the sample. Entering the dry side, by measuring the change in weight of the moisture-permeable cup over time, the water vapor transmittance and other parameters of the sample can be obtained. </p
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There are two testing methods for moisture permeability: straight cup and inverted cup; </p
Cup correcting method: American standard ASTM E-96 A, C, E; Japanese standard JIS L-1099 A1; </p
Cup pouring method: American standard ASTM-E96, Japanese standard test JIS-L1099B1; </p
此种测试采用洗前数据� </p
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Domestic outdoor practitioners and outdoor enthusiasts all call moisture permeability breathability, or moisture permeability directly called breathability. It is incorrect and imprecise to confuse these two terms together. Breathability and moisture permeability are completely different. This concept requires distinction and correct understanding; </p
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以上三种功能指标的面料叫防水透湿面料、又叫防风防水保暖透湿面料，简单的理解为外面的雨水进不来，里面的汗液通过涂层和膜的孔隙排出去�
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