Home / Standards / GB/T 21704-2008 GB/T 21704-2008 Active Determination of non-protein-nitrogen content in milk and dairy products 乳与乳制品中非蛋白氮含量的测定 Standard Type GBT ICS 67.100.01 CCS C53 Status 现行 Issue Date 2008-04-09 Implementation 2008-07-01 Responsible Dept 农业农村部 Drafting Unit N/A