This standard applies to the determination of arsenic in gold concentrate. Measuring range: 0.35 to 2.00%.
GB/T 7739.4-1987 history
2021GB/T 7739.4-2021 Methods for chemical analysis of gold concentrates—Part 4: Determination of copper content
2019GB/T 7739.3-2019 Methods for chemical analysis of gold concerntrates—Part 3:Determination of arsenic content
2007GB/T 7739.3-2007 Methods for chemical analysis of gold concentrates Part 3: Determination of arsenic contents
1987GB/T 7739.4-1987 Methods for chemical analysis of gold concentrates--The iodometric method for the determination of arsenic content
GB/T 7739.4-1987 Methods for chemical analysis of gold concentrates--The iodometric method for the determination of arsenic content was changed to GB/T 7739.3-2007 Methods for chemical analysis of gold concentrates Part 3: Determination of arsenic contents.