GB/T 7739.2-2019 Methods for chemical analysis of gold concentrates—Part 2:Determination of silver content—Flame atomic absorption spectrometric method
2019GB/T 7739.2-2019 Methods for chemical analysis of gold concentrates—Part 2:Determination of silver content—Flame atomic absorption spectrometric method
2016GB/T 7739.12-2016 Methods for chemical analysis of gold concerntrates.Part 12:Determination of arsenic, mercury, cadmium, lead and bismuth contents.Atomic fluorescence spectrometric method
2007GB/T 7739.2-2007 Methods for chemical analysis of gold concentrates Part 2: Determination of silver contents
1987GB/T 7739.2-1987 Methods for chemical analysis of gold concentrates--The flame atomic absorption spectrophotometric methods for the determination of silver content