Home / Standards / GB/T 15400-2018 GB/T 15400-2018 Active Determination of tryptophan in feeds 饲料中色氨酸的测定 Standard Type GBT ICS 65.120 CCS B46 Status 现行 Issue Date 2018-09-17 Implementation 2019-04-01 Responsible Dept 国家标准委 Drafting Unit N/A