Home / Standards / GB/T 6730.71-2014 GB/T 6730.71-2014 Active Iron ores―Determination of acid-soluble iron(II) content―Titrimetric method 铁矿石 酸溶亚铁含量的测定 滴定法 Standard Type GBT ICS 73.060.10 CCS D31 Status 现行 Issue Date 2014-03-27 Implementation 2015-01-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A