JB/T 8063.5-2011
粉末冶金材料与制品化学分析方法.第5部分:铜基材料与制品中锡的测定(次磷酸钠还原-碘酸钾滴定法)
Methods for chemical analysis of powder metallurgy materials and products:Part 5:The secondary sodium phosphate reduction – potassium iodate titrimetric method for the determination of tin in copper-based materials and products