GB/T 32841-2016 Gold lump ores increment sampling and sample preparation

GB/T 2007.6-1987 General rules for the sampling and sample preparation of minerals in bulk—Determination of moisture content—Heat drying method GB/T 20899.1-2007 Methods for chemical analysis of gold ores—Part 1:Determination of gold contents GB/T 20899.1-2019 Methods for chemical analysis of gold ores—Part 1:Determination of gold content GB/T 20899.2-2007 Methods for chemical analysis of gold ores—Part 2:Determination of silver contents GB/T 20899.2-2019 Methods for chemical analysis of gold ores—Part 2:Determination of silver content—Flame atomic absorption spectrometric method GB/T 20899.3-2007 Methods for chemical analysis of gold ores—Part 3:Determination of arsenic contents GB/T 20899.3-2019 Methods for chemical analysis of gold ores—Part 3:Determination of arsenic content GB/T 20899.4-2007 Methods for chemical analysis of gold ores—Part 4:Determination of copper contents GB/T 20899.4-2021 Methods for chemical analysis of gold ores—Part 4:Determination of copper content GB/T 20899.5-2007 Methods for chemical analysis of gold ores—Part 5:Determination of lead contents GB/T 20899.5-2021 Methods for chemical analysis of gold ores—Part 5: Determination of lead content GB/T 20899.6-2007 Methods for chemical analysis of gold ores—Part 6:Determination of zinc contents GB/T 20899.6-2021 Methods for chemical analysis of gold ores—Part 6:Determination of zinc content GB/T 20899.7-2007 Methods for chemical analysis of gold ores—Part 7:Determination of iron contents GB/T 20899.7-2022 Methods for chemical analysis of gold ores—Part 7:Determination of iron content GB/T 20899.8-2007 Methods for chemical analysis of gold ores—Part 8:Determination of sulfur contents GB/T 20899.8-2022 Methods for chemical analysis of gold ores—Part 8:Determination of sulfur content GB/T 20899.9-2007 Methods for chemical analysis of gold ores—Part 9:Determination of carbon contents GB/T 20899.10-2007 Methods for chemical analysis of gold ores—Part 10:Determination of antimony contents GB/T 20899.11-2007 Methods for chemical analysis of gold ores—Part 11:Determination of arsenic and bismuth contents GB/T 20899.12-2016 Methods for chemical analysis of gold ores—Part 12:Determination of arsenic,mercury,cadmium,lead and bismuth contents—Atomic fluorescence spectrometric method GB/T 20899.13-2017 Methods for chemical analysis of gold ores—Part 13:Determination of lead,zinc,bismuth,cadmium,chromium,arsenic and mercury contents—Inductively coupled plasma atomic emission spectrometry GB/T 20899.14-2017 Methods for chemical analysis of gold ores—Part 14:Determination of thallium content—Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry GB/T 20899.15-2023 Methods for chemical analysis of gold ores—Part 15:Determination of copper,lead,zinc,silver,iron,manganese,nickel,cobalt,aluminum,chromium,cadmium,antimony,bismuth,arsenic,mercury,selenium,barium and beryllium contents—Inductively coupled plasma mass spectrometry method GB/T 32840-2016 Gold ores GB/T 20899.10-2025 Methods for chemical analysis of gold ores—Part 10:Determination of antimony content GB/T 20899.9-2025 Methods for chemical analysis of gold ores—Part 9:Determination of carbon content