Home / Standards / GB/T 24586-2009 GB/T 24586-2009 Active Iron ores - Determination of apparent density，true density and porosity 铁矿石 表观密度、真密度和孔隙率的测定 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