JB/T 8063.7-2011
粉末冶金材料与制品化学分析方法.第7部分:铜基材料与制品中锌的测定(硫酸铅钡共沉淀-EDTA滴定法)
Methods for chemical analysis of powder metallurgy materials and products.Part 7:The lead-barium sulfate precipitation-EDTA titrimetric method for the determination of zinc in copper-based materials and products