Home / Standards / GB/T 40734-2021 GB/T 40734-2021 Active Non-destructive testing of welds—Phased array ultrasonic testing(PAUT)—Acceptance levels 焊缝无损检测 相控阵超声检测 验收等级 Standard Type GBT ICS 25.160.40 CCS J 33 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A