Home / Standards / GB/T 20975.22-2008 GB/T 20975.22-2008 Abolished Methods for chemical analysis of aluminium and aluminium alloys - Part 22：Determination of beryllium content SCR spectrophotometric method 铝及铝合金化学分析方法 第22部分：铍含量的测定 依莱铬氰兰R分光光度法 Standard Type GBT ICS 77.120.10 CCS H12 Status 废止 Issue Date 2008-03-31 Implementation 2008-09-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A