Home / Standards / GB/T 6730.27-2017 GB/T 6730.27-2017 Active Iron ores—Determination of fluorine content—Lanthanum-alizarin complexion spectrophotometric method 铁矿石 氟含量的测定 镧-茜素络合腙分光光度法 Standard Type GBT ICS 73.060.10 CCS D31 Status 现行 Issue Date 2017-07-31 Implementation 2018-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A