标准编号：ISO 8968-1:2014
中文名称：牛奶和奶制品 氮含量测定 第1部分：：凯氏原理（KJELDAHL法）和粗蛋白的计算
英文名称：Milk and milk products — Determination of nitrogen content — Part 1: Kjeldahl principle and crude protein calculation
发布日期：2014-02
标准范围
This International Standard specifies a method for the determination of the nitrogen content and crudeprotein calculation of milk and milk products by the Kjeldahl principle, using traditional and blockdigestion methods.The methods are applicable to:— liquid cow’s (whole, partially skimmed or skimmed milk), goat’s and sheep’s whole milk;— hard, semi-hard and processed cheese;— dried milk and dried milk products (including milk-based infant formulae, milk protein concentrate,whey protein concentrate, casein and caseinate).The methods are not applicable to samples containing ammonium caseinate
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