Home / Standards / GB/T 223.16-1991 GB/T 223.16-1991 Abolished Methods for chemical analysis of iron,steel and alloy--The chromotropic acid photometric method for the determination of titanium content 钢铁及合金化学分析方法 变色酸光度法测定钛量 Standard Type GBT ICS 77.080 CCS H11 Status 废止 Issue Date 1991-09-06 Implementation 1992-06-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A