Home / Standards / GB/T 38894-2020 GB/T 38894-2020 Active Non-destructive testing—Electrochemical testing—General principles 无损检测 电化学检测 总则 Standard Type GBT ICS 19.100 CCS J04 Status 现行 Issue Date 2020-06-02 Implementation 2021-01-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委