Home / Standards / GB/T 42871-2023 GB/T 42871-2023 Active Non-destructive testing—Acoustic emission testing—Measurement method for acoustic emission signals in concrete 无损检测 声发射检测 混凝土声发射信号的测试方法 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