ISO 8968-3-2004 牛奶.氮含量的测定.第3部分:块溶解法(半微观快速常规法)

标准号：ISO 8968-3-2004
中文标准名称：牛奶.氮含量的测定.第3部分:块溶解法(半微观快速常规法)
英文标准名称：Milk - Determination of nitrogen content - Part 3: Block-digestion method (Semi-micro rapid routine method)
标准类型：X16
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：X16
国际标准分类号：67.100.10
适用范围：This part of ISO 89681|IDF 20 specifies a method for the determination of the nitrogen content of liquid, whole or skimmed milk. It concerns a semi-micro rapid routine method following the block-digestion principle. NOTE The method is a more rapid method than that described in ISO 8968-1| IDF 20-1 and ISO 8968-2 | IDF 20-2 since the digestion time is reduced by taking a lower mass of test portion and using hydrogen peroxide together with sulfuric acid and a catalyst in the digestion.