Home / Standards / GB/T 4333.6-2019 GB/T 4333.6-2019 Active Ferrosilicon—Determination of chromium content—Diphenylcarbazide spectrophotometric method 硅铁 铬含量的测定 二苯基碳酰二肼分光光度法 Standard Type GBT ICS 77.100 CCS H11 Status 现行 Issue Date 2019-06-04 Implementation 2020-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A