Home / Standards / GB/T 40332-2021 GB/T 40332-2021 Active Non-destructive testing—Ultrasonic testing—Characterization and verification of ultrasonic thickness measuring equipment 无损检测 超声检测 超声测厚仪性能特征和测试方法 Standard Type GBT ICS 19.100 CCS J04 Status 现行 Issue Date 2021-05-21 Implementation 2021-12-01 Responsible Dept 国家标准委 Drafting Unit N/A