Home / Standards / GB/T 38531-2020 GB/T 38531-2020 Active Microbeam analysis—Computed tomography (CT) method for micro- and nano-pore structure analysis in tight rock samples 微束分析 致密岩石微纳米级孔隙结构计算机层析成像(CT)分析方法 Standard Type GBT ICS 71.040.40 CCS G04 Status 现行 Issue Date 2020-03-06 Implementation 2021-02-01 Responsible Dept 国家标准委 Drafting Unit N/A