Home / Standards / GB/T 38939-2020 GB/T 38939-2020 Active Nickel-based alloy—Determination of multi-element contents—Spark discharge atomic emission spectrometric method(routine method) 镍基合金 多元素含量的测定 火花放电原子发射光谱分析法(常规法) Standard Type GBT ICS 77.120.40 CCS H25 Status 现行 Issue Date 2020-06-02 Implementation 2021-01-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A