Home / Standards / GB/T 19501 GB/T 19501 Active Microbeam analysis - General guide for electron backscatter diffraction analysis 微束分析 电子背散射衍射分析方法通则 Standard Type GBT ICS 71.040.50 CCS G04 Status 现行 Issue Date 2013-07-19 Implementation 2014-03-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委