Home / Standards / GB/T 23274.4-2009 GB/T 23274.4-2009 Active Methods for chemical analysis of stannic oxide - Part 4: Determination of lead and copper content - Flame atomic absorption spectrometric method 二氧化锡化学分析方法 第4部分：铅、铜量的测定 火焰原子吸收光谱法 Standard Type GBT ICS 71.040.40 CCS G10 Status 现行 Issue Date 2009-01-05 Implementation 2009-11-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A