Home / Standards / GB/T 6730.20-2016 GB/T 6730.20-2016 Active Iron ores—Determination of phosphorus content—Titrimetric method 铁矿石 磷含量的测定 滴定法 Standard Type GBT ICS 73.060.10 CCS D31 Status 现行 Issue Date 2016-10-13 Implementation 2017-09-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A