Home / Standards / GB/T 24223-2009 GB/T 24223-2009 Active Chromium ores - Determination of phosphorus content - Reduced molybdophosphate photometric method 铬矿石 磷含量的测定 还原磷钼酸盐分光光度法 Standard Type GBT ICS 73.060.30 CCS D33 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