Home / Standards / GB/T 45468-2025 GB/T 45468-2025 Active Microbeam analysis—FIB-SEM imaging and analysis method for 3D micro-pore structure of rock sample 微束分析 岩石微孔隙聚焦离子束-扫描电镜三维成像分析方法 Standard Type GBT ICS 71.040.99 CCS G 04 Status 现行 Issue Date 2025-03-28 Implementation 2025-10-01 Responsible Dept 国家标准委 Drafting Unit N/A