Home / Standards / GB/T 24515-2009 GB/T 24515-2009 Active Iron ores for blast furnace feedstocks - Determination of the reducibility by the rate of reduction index 高炉用铁矿石 用还原速率表示的还原性的测定 Standard Type GBT ICS 73.060.10 CCS D31 Status 现行 Issue Date 2009-10-30 Implementation 2010-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会