Home / Standards / GB/T 24189-2009 GB/T 24189-2009 Abolished Iron ores for blast furnace feedstocks - Determination of the reducibility by the final degree of reduction index 高炉用铁矿石 用最终还原度指数表示的还原性的测定 Standard Type GBT ICS 73.060.10 CCS D31 Status 废止 Issue Date 2009-07-08 Implementation 2010-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A