Home / Standards / GB/T 34641-2017 GB/T 34641-2017 Active Non-destructive testing—Test method for determining image quality in direct thermal neutron radiographic examination 无损检测 直接热中子照相检测的像质测定方法 Standard Type GBT ICS 19.100 CCS J04 Status 现行 Issue Date 2017-09-29 Implementation 2018-04-01 Responsible Dept 国家标准委 Drafting Unit N/A