Home / Standards / GB/T 20770 GB/T 20770 Active Determination of 486 pesticides and related chemicals residues in grains - LC-MS-MS method 粮谷中486种农药及相关化学品残留量的测定 液相色谱-串联质谱法 Standard Type GBT ICS N/A CCS X04 Status 现行 Issue Date 2008-12-31 Implementation 2009-05-01 Responsible Dept 农业农村部 Drafting Unit 农业农村部