Home / Standards / GB 223.17-89 GB 223.17-89 Steel and alloy—Determination of titanium content—Diantipyrylmethane photometric method 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 GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A