BS EN ISO 8968-4:2016(2017) 乳和乳制品 氮含量的測定 第4部分:蛋白質(zhì)和非蛋白質(zhì)氮含量的測定及真實(shí)蛋白質(zhì)含量計(jì)算(參考法)
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)