乳与乳制品中非蛋白氮含量的测定
Determination of non-protein-nitrogen content in milk and dairy products
2008-04-09
BS EN ISO 8968-4-2016
Milk and milk products. Determination of nitrogen content-Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
牛奶和奶制品 氮含量的测定
2017-02-28
ISO 8968-4-2016
Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
牛奶和奶制品氮含量的测定第4部分:蛋白质和非蛋白质氮含量的测定和真蛋白质含量的计算（参考方法）
2016-04-04
GOST R 55246-2012
Молоко и молочные продукты. Определение содержания небелкового азота с применением метода Кьельдаля
牛奶和奶制品 通过凯氏定氮法测定非蛋白质氮含量
DIN EN ISO 8968-4
Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)
乳和乳制品.氮含量的测定.第4部分:蛋白质和非蛋白质氮含量的测定和真实蛋白质含量的计算（参考法）（ISO 8968-4-2016）
2016-09-01
UNE-EN ISO 8968-4-2002
Milk - Determination of nitrogen content - Part 4: Determination of non-protein nitrogen content. (ISO 8968-4:2001)
牛奶.氮含量的测定.第4部分:非蛋白质氮含量的测定 （ISO 8968-4-2001）