Home / Standards / GB/T 25758.4-2010 GB/T 25758.4-2010 Active Non-destructive testing - Characteristics of focal spots in industrial X-ray systems for use in non-destructive testing - Part 4: Edge method 无损检测 工业X射线系统焦点特性 第4部分：边缘方法 Standard Type GBT ICS 19.100 CCS J04 Status 现行 Issue Date 2010-12-23 Implementation 2011-10-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委