YS/T 461.8-2003 The methods for chemical analysis of lead and zinc bulk concentrates-The determination of copper content-The atomic absorption method (English Version)
2013YS/T 461.8-2013 Methods for chemical analysis of lead and zinc bulk concentrates.Part 8:Determination of copper content.Flame atomic absorption spectrometry
2003YS/T 461.8-2003 The methods for chemical analysis of lead and zinc bulk concentrates-The determination of copper content-The atomic absorption method