Home / Standards / GB/T 223.17-1989 GB/T 223.17-1989 Active Methods for chemical analysis of iron,steel and alloy--The diantipyryl methane photometric method for the determination of titanium content 钢铁及合金化学分析方法 二安替比林甲烷光度法测定钛量 Standard Type GBT ICS 77.080 CCS H11 Status 现行 Issue Date 1989-03-31 Implementation 1990-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A