GB/T 7739.2-1987 Methods for chemical analysis of gold concentrates--The flame atomic absorption spectrophotometric methods for the determination of silver content
This standard applies to the determination of the amount of silver in gold concentrate. Measuring range: 10.0~20.0g/t.
GB/T 7739.2-1987 history
2019GB/T 7739.2-2019 Methods for chemical analysis of gold concentrates—Part 2:Determination of silver content—Flame atomic absorption 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