Home / Standards / GB/T 31924-2015 GB/T 31924-2015 Active Nickel pig iron—Determination of nickel content—The dimethylglyoxime gravimetric method 含镍生铁 镍含量的测定 丁二酮肟重量法 Standard Type GBT ICS 77.100 CCS H11 Status 现行 Issue Date 2015-09-11 Implementation 2016-06-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A