GB/T 12689.4-2004
ActiveThe methods for chemical analysis of zinc and zinc alloys--The determination of copper content--The lead diethyldithio-carbamate spectrophotometric method and the flame atomic absorption spectrometric method and the electrolytic method
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
Application Summary AI generated
This standard specifies three methods for determining copper content in zinc and zinc alloys: lead diethyldithiocarbamate spectrophotometry, flame atomic absorption spectrometry, and electrolytic analysis. It is applied in the metallurgical industry for quality control and material certification of zinc-based products, including raw zinc, die-casting alloys, and galvanizing materials. The standard ensures accurate copper quantification across different concentration ranges, supporting compliance with material specifications in manufacturing and recycling processes.
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