Home / Standards / GB/T 223.5-2008 GB/T 223.5-2008 Active Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method 钢铁 酸溶硅和全硅含量的测定 还原型硅钼酸盐分光光度法 Standard Type GBT ICS 77.080.01 CCS H11 Status 现行 Issue Date 2008-08-19 Implementation 2009-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会