Home / Standards / GB/T 39873-2021 GB/T 39873-2021 Active Determination of quaternary ammonium salt in disinfectant—Liquid chromatography-tandem mass spectrometry 消毒剂中季铵盐的测定 液相色谱-串联质谱法 Standard Type GBT ICS 11.080.20 CCS C50 Status 现行 Issue Date 2021-03-09 Implementation 2021-10-01 Responsible Dept 国家标准委 Drafting Unit N/A