Home / Standards / GB/T 37847-2019 GB/T 37847-2019 Active General rules for isotope composition analysis by mass spectrometry 同位素组成质谱分析方法通则 Standard Type GBT ICS 71.040.99 CCS N50 Status 现行 Issue Date 2019-08-30 Implementation 2020-03-01 Responsible Dept 科技部 Drafting Unit N/A