Home / Standards / GB/T 13072-2010 GB/T 13072-2010 Active Geological water samples - Determination of radioactive ratio 226Ra/228Ra - Emanation - β counting techniques 地质水样 226Ra/228Ra 放射性活度比值测定 射气法 - β 法 Standard Type GBT ICS 73.020 CCS D14 Status 现行 Issue Date 2010-11-10 Implementation 2011-02-01 Responsible Dept 自然资源部(国土) Drafting Unit N/A