Home / Standards / GB/T 42872-2023 GB/T 42872-2023 Active Non-destructive testing—Ultrasonic testing and evaluation for turbing-blades in service 无损检测 在役汽轮机叶片超声检测和评价方法 Standard Type GBT ICS 19.100 CCS J04 Status 现行 Issue Date 2023-08-06 Implementation 2023-08-06 Responsible Dept 国家标准委 Drafting Unit N/A