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1999年上半年我站对本市生产的 12种品牌饮用纯净水进行了卫生监督检测。1 材料和方法1.1 样品来源 按随机抽样方法从厂家产品中抽取 ,送检样是由厂家自送。抽检、送检样品每份共 2桶 ,均在保质期内。1.2 检测指标及方法 按ＧＢ1732 4和ＧＢ1732 3规定的指标和方法进行测
In the first half of 1999, I made hygienic supervision and inspection on 12 brands of pure purified drinking water produced in our city. 1 Materials and methods 1.1 Sample Source Random sampling method from the manufacturer’s products, samples submitted by the manufacturer to send. Sampling, submission of samples each a total of 2 barrels, are in the shelf life. 1.2 Test Indicators and Methods According to GB1732 4 and GB1732 3 indicators and methods for testing