標準號：BS EN ISO 8968-3-2004
中文標準名稱：牛奶.氮含量的測定.批溶解法(半微觀快速常規法)
英文標準名稱：Milk - Determination of nitrogen content - Block-digestion method (Semi-micro rapid routine method)
標準類型：X16
發布日期：2004/9/9 12:00:00
實施日期：2004/9/9 12:00:00
中國標準分類號：X16
國際標準分類號：67.100.10
適用范圍：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.