Home / Standards / GB/T 38171-2019 GB/T 38171-2019 Active Metal chelating chromatographic medium 金属螯合层析介质 Standard Type GBT ICS 07.080 CCS A21 Status 现行 Issue Date 2019-10-18 Implementation 2019-10-18 Responsible Dept 国家标准委 Drafting Unit N/A