Home / Standards / GB/T 15400-1994 GB/T 15400-1994 Abolished Determination of tryptophan in feedstuffs--Spectrophotometry 饲料中色氨酸测定方法 分光光度法 Standard Type GBT ICS 65.120 CCS B46 Status 废止 Issue Date 1994-12-30 Implementation 1995-07-01 Responsible Dept 国家标准委 Drafting Unit N/A