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See Chinese contents: GB/T 20899.1-2019 GB/T 20899.1-2019: Methods for chemical analysis of gold ores -- Part 1: Determination of gold content
This Part of GB/T 20899 specifies the method to determine gold content in gold ores. This Part is applicable to the determination of gold content in gold ores. The determination range of Method 1 is 0.20g/t~150.0g/t.
