Home / Standards / GB/T 35664-2017 GB/T 35664-2017 Active Determination of ammonium in the wet precipitation—Ion chromatography 大气降水中铵离子的测定 离子色谱法 Standard Type GBT ICS 07.060 CCS A47 Status 现行 Issue Date 2017-12-29 Implementation 2018-07-01 Responsible Dept 中国气象局 Drafting Unit N/A