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牛奶掺水的鉴别检验 (1)比重法鉴别 沿量筒内壁倒入混匀的20℃牛奶200ml,把牛奶比重计放入,静止2～3min读取比重值。正常牛奶在20℃时,比重为1.028～1.033之
Identification of milk mixed with water (1) Gravimetric method to identify along the inner wall of the cylinder into the mixing 20 ℃ milk 200ml, the milk into the hydrometer, still 2 ~ 3min read the proportion value. Normal milk at 20 ℃, the proportion of 1.028 ~ 1.033 of