Home / Standards / GB/T 4698.7-2011 GB/T 4698.7-2011 Active Methods for chemical analysis of titanium sponge,titanium and titanium alloys - Determination of oxygen and nitrogen content 海绵钛、钛及钛合金化学分析方法 氧量、氮量的测定 Standard Type GBT ICS 77.120.50 CCS H64 Status 现行 Issue Date 2011-05-12 Implementation 2012-02-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A