Home / Standards / GB/T 31362-2015 GB/T 31362-2015 Active Non-destructive testing—Thermal neutron radiographic testing—Determination of beam L/D ratio 无损检测 热中子照相检测 中子束L/D比的测定 Standard Type GBT ICS 19.100 CCS J04 Status 现行 Issue Date 2015-02-04 Implementation 2015-10-01 Responsible Dept 国家标准委 Drafting Unit N/A