Home / Standards / GB/T 6730.27-1986 GB/T 6730.27-1986 Abolished Methods for chemical analysis of iron ores--The lanthanum-alizarin complexon photometric method for the determination of fluorine content 铁矿石化学分析方法 镧-茜素络合腙光度法测定氟量 Standard Type GBT ICS 73.060 CCS D31 Status 废止 Issue Date 1986-08-19 Implementation 1987-08-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A