This part specifies the method for determination of copper content in gold ore. This section applies to the determination of copper content in gold ore.
GB/T 20899.4-2007 history
2021GB/T 20899.4-2021 Methods for chemical analysis of gold ores—Part 4: Determination of copper content
2007GB/T 20899.4-2007 Methods for chemical analysis of gold ores Part 4: Determination of copper contents