锌及锌合金化学分析方法 铜量的测定 二乙基二硫代氨基甲酸铅分光光度法、火焰原子吸收光谱法和电解法 (GB/T 12689.4-2004)
The methods for chemical analysis of zine and zinc alloys The determination of copper contentThe lead diethyldithio-carbamate speetrophotometrie method andthe flame atomie absorption spectrometrie method and the eleetrolytie method
代替GB/T 12689.2-1990,GB/T 12689.9-1990
发布时间: 2004-04-30
实施时间: 2004-10-01
阅读数量: (45)