Home / Standards / GB/T 24236-2009 GB/T 24236-2009 Active Iron ores for shaft direct-reduction feedstocks - Determination of the reducibility index, final degree of reduction and degree of metallization 直接还原炉用铁矿石 还原指数、最终还原度和金属化率的测定 Standard Type GBT ICS 73.060.10 CCS D31 Status 现行 Issue Date 2009-07-15 Implementation 2010-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A