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GB/T 4324.24-2012 Methods for chemical analysis of tungsten - Part 24: Determination of phosphorus content - Molybdemum blue photometry $160.00 via email in 1~3 business day valid
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 $120.00 via email in 1~3 business day valid
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 $160.00 via email in 1~3 business day valid
GB/T 4324.27-2012 Methods for chemical analysis of tungsten - Part 27:：Determination of carbon content - High frequency combustion-infrared absorption method $120.00 via email in 1~3 business day valid
GB/T 4324.28-2012 Methods for chemical analysis of tungsten - Part 28: Determination of molybdenum content - The thioyanate spectrophotometry $120.00 via email in 1~3 business day valid
GB/T 4324.3-2012 Methods for chemical analysis of tungsten - Part 3: Determination of tin content - Hydrogenate atomic absorption spectrometry $160.00 via email in 1~3 business day valid
GB/T 4324.4-2012 Methods for chemical analysis of tungsten - Part 4: Determination of antimony content - Hydrogenate atomic absorption spectrometry $120.00 via email in 1~3 business day valid
GB/T 4324.5-2012 Methods for chemical analysis of tungsten - Part 5: Determination of arsenic content - Hydrogenate atomic absorption spectrometry $160.00 via email in 1~3 business day superseded
GB/T 4324.6-2012 Methods for chemical analysis of tungsten - Part 6: Determination of iron content-1,10-phenanthroline spectrophotometry $120.00 via email in 1~3 business day valid
GB/T 4324.7-2012 Methods for chemical analysis of tungsten - Part 7: Determination of cobalt content - Inductively coupled plasma atomic emission spectrometry $120.00 via email in 1~3 business day valid
GB/T 4324.8-2008 Methods for chemical analysis of tungsten - Determination of nickel content - The inductively coupled plasma atomic emission spectrometry 、 flame atomic absorption spectrometry and di $120.00 via email in 1~3 business day valid
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 $180.00 via email in 1~3 business day valid
GB/T 4325.1-2013 Methods for chemical analysis of molybdenum - Part 1: Determination of lead content - Graphite furnace atomic absorption spectrometry $120.00 via email in 1~3 business day valid
GB/T 4325.10-2013 Methods for chemical analysis of molybdenum—Part 10:Determination of copper content—Flame atomic absorption spectrometry $120.00 via email in 1~3 business day valid
GB/T 4325.11-2013 Methods for chemical analysis of molybdenum—Part 11:Determination of aluminum content—Chromazurol S spectrophotometry and inductively coupled plasma atomic emission spectrometry $180.00 via email in 1~3 business day valid
GB/T 4325.12-2013 Methods for chemical analysis of molybdenum—Part 12:Determination of silicon content—Inductively coupled plasma atomic emission spectrometry $120.00 via email in 1~3 business day valid
GB/T 4325.13-2013 Methods for chemical analysis of molybdenum—Part 13:Determination of calcium content—Flame atomic absorption spectrometry $124.00 via email in 1~3 business day valid
GB/T 4325.14-2013 Methods for chemical analysis of molybdenum—Part 14:Determination of magnesium content—Flame atomic absorption spectrometry $120.00 via email in 1~3 business day valid
GB/T 4325.15-2013 Methods for chemical analysis of molybdenum—Part 15:Determination of sodium content—Flame atomic absorption spectrometry $120.00 via email in 1~3 business day valid
GB/T 4325.16-2013 Methods for chemical analysis of molybdenum—Part 16:Determination of potassium content—Flame atomic absorption spectrometry $120.00 via email in 1~3 business day valid
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