Home / Standards / GB/T 8454-2020 GB/T 8454-2020 Active Reduced ilmenite powder for welding rob—Determination of ferrous iron content—Potassium dichromate titrimetric method 焊条用还原钛铁矿粉 亚铁含量的测定 重铬酸钾滴定法 Standard Type GBT ICS 73.060.10 CCS D31 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