Under the condition of constant temperature and constant humidity, the water vapor penetration rate of the separate coatings film is tested by the wet cup method that is simple and practical.
在恒温恒湿条件下，湿杯法检测涂料游离涂膜的透汽性，从而建立了一种简捷实用的水蒸气透过率检测方法。
Method of preparation:Empty the contents of one sachet into a cup, Add 150ML of hot water and stir.
冲调方法：将一包奶茶粉倒入杯中，加入150ML热水搅拌，即可饮用。
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