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GB/T 8151.20-2012
Methods for chemical analysis of zinc concentrates - Part 20：Determination of copper,lead,iron,arsenic,cadmium antimony, calcium,magnesium contents - Inductively coupled plasma atomic emission spectrometry
GB/T 8151.14-2012
Methods for chemical analysis of zinc concentrates - Part 14： Determination of nickel content - The flame atomic absorption spectrometric method
GB/T 8151.13-2012
Methods for chemical analysis of zinc concentrates - Part 13： Determination of germanium content - Hydride generation-atomic fluorescence spectrometry and the phenyl fluorone spectrophptometric method
GB/T 8151.12-2012
Methods for chemical analysis of zinc concentrates - Part 12： Determination of sliver content - The flame atomic absorption spectrometric method
GB/T 8151.11-2012
Methods for chemical analysis of zinc concentrates - Part 11： Determination of antimony content - Hydride generation-atomic fluorescence spectrometry
GB/T 8151.10-2012
Methods for chemical analysis of zinc concentrates - Part 10：Determination of tin content - Hydride generation-atomic fluorescence spectrometry
GB/T 4324.9-2012
Methods for chemical analysis of tungsten - Part 9: Determination of cadmium content - Inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry
GB/T 4324.7-2012
Methods for chemical analysis of tungsten - Part 7: Determination of cobalt content - Inductively coupled plasma atomic emission spectrometry
GB/T 4324.6-2012
Methods for chemical analysis of tungsten - Part 6: Determination of iron content-1,10-phenanthroline spectrophotometry
GB/T 4324.5-2012
Methods for chemical analysis of tungsten - Part 5: Determination of arsenic content - Hydrogenate atomic absorption spectrometry
GB/T 4324.4-2012
Methods for chemical analysis of tungsten - Part 4: Determination of antimony content - Hydrogenate atomic absorption spectrometry
GB/T 4324.3-2012
Methods for chemical analysis of tungsten - Part 3: Determination of tin content - Hydrogenate atomic absorption spectrometry
GB/T 4324.28-2012
Methods for chemical analysis of tungsten - Part 28: Determination of molybdenum content - The thioyanate spectrophotometry
GB/T 4324.27-2012
Methods for chemical analysis of tungsten - Part 27:：Determination of carbon content - High frequency combustion-infrared absorption method
GB/T 4324.26-2012
Methods for chemical analysis of tungsten - Part 26: Determination of nitrogen content - Pulse heating inert gas fusion-thermal conductive method and the Nessler reagent spectrophotometry
GB/T 4324.25-2012
Methods for chemical analysis of tungsten - Part 25: Determination of oxygen content - Pulse heating inert gas fusion-infrared absorption method
GB/T 4324.24-2012
Methods for chemical analysis of tungsten - Part 24: Determination of phosphorus content - Molybdemum blue photometry
GB/T 4324.23-2012
Methods for chemical analysis of tungsten - Part 23: Determination of sulfur content - The combustion-conductometric titration and high frequency combustion-infrared absorption method
GB/T 4324.22-2012
Methods for chemical analysis of tungsten - Part 22: Determination of manganese content - Inductively coupled plasma atomic emission spectrometry
GB/T 4324.2-2012
Methods for chemical analysis of tungsten - Part 2: Determination of bismuth content - Hydrogenate atomic absorption spectrometry