Home / Standards / GB/T 19803-2005 GB/T 19803-2005 Active Non-destructive testing-Radiographic image quality indicators-Principles and identification 无损检测 射线照相像质计 原则与标识 Standard Type GBT ICS 19.100 CCS J04 Status 现行 Issue Date 2005-06-08 Implementation 2005-12-01 Responsible Dept 国家标准委 Drafting Unit N/A