Home / Standards / GB/T 24235-2009 GB/T 24235-2009 Active Iron ores for shaft direct-reduction feedstocks - Determination of the low temperature reduction-disintegration index and degree of metallization 直接还原炉料用铁矿石 低温还原粉化率和金属化率的测定 气体直接还原法 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