The moisture permeability of textile products is evaluated using the calcium chloride method (A-1 method) and the water method (A-2 method).
- The moisture permeability of textile products is evaluated using the calcium chloride method (A-1 method) and the water method (A-2 method). - In the calcium chloride method, approximately 33g of desiccant (calcium chloride) is placed in a cup preheated to 40°C, and the test specimen, packing, and ring are placed on top and secured with a nut, sealing the sides with vinyl adhesive tape to create the test body. - In the water method, approximately 42ml of water at around 40°C is used instead of the desiccant to create the test body. Under specified temperature and humidity conditions, the mass is measured after one hour and again after another hour to calculate the moisture permeability. <Reference Standard> JIS-L1099 【Regarding Catalog Download】 Please request the catalog from the related links below or by contacting us. *For products without a standalone catalog, please request the comprehensive catalog.
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■Test specimen: Diameter φ70 mm ■Moisture permeable area: 28 cm² (Inner diameter of the cup φ60 mm) ■Accessories: Cups... 5 pieces ■Test conditions: Temperature 40 ± 2 °C, Humidity 90 ± 5 % or 50 ± 5 %, Air circulation speed 0.8 m/s or less ■Dimensions and weight: Approximately W320 × D200 × H55 mm, Approximately 5 kg (including case)
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