GB/T 33948.2-2017 Translated English of Chinese Standard. (GBT 33948.2-2017, GB/T33948.2-2017, GBT33948.2-2017): Method for chemical analysis of copper-steel composite metal - Part 2: Determination of zinc content - Na2EDTA titration methodThis Part of GB/T 33948 specifies the determination method of zinc content of copper-steel composite metal. This Part applies to the determination of zinc content of copper-steel composite metal. The determination range is 0.50% ~ 6.50%. |