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1.适用范围本标准规定了用于防水的包装材料的透水度试验方法。注透水度即在薄膜状物质的一面接触到水后,水(此处的水是指气态的水和液态的水)渗透到另一面所需的时间,根据通过薄膜状物质后的水引起的由砂糖粉未和染料的混合物所组成的试剂的颜色变化进行测定。
1. Scope This standard specifies the method for testing the water permeability of waterproof packaging materials. Permeability is the time required for water (where water refers to gaseous and liquid water) to penetrate to the other side upon contact of water on one side of the film-like substance, depending on the water that has passed through the film-like substance The color change of the reagent consisting of a mixture of powdered sugar and dye was measured.