Home / Standards / GB/T 3654.8-2008 GB/T 3654.8-2008 Abolished Ferroniobium - Determination of tianiun content - Chromotropic acid photometric method 铌铁 钛含量的测定 变色酸光度法 Standard Type GBT ICS 77.100 CCS H11 Status 废止 Issue Date 2008-05-13 Implementation 2008-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A