This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage, quality certificate and contract (or order form) of tungsten oxide. This standard applies to tungsten trioxide (referred to as yellow tungsten), blue tungsten oxide (referred to as blue tungsten), and purple tungsten oxide (referred to as purple tungsten).
GB/T 3457-2013 Referenced Document
GB/T 1479.1 Metallic powders—Determination of apparent density—Part 1:Funnal method
GB/T 3249 Test method for Fisher number of metal powders and related compounds*, 2022-03-09 Update
GB/T 4324.1 Methods for chemical analysis of tungsten.Part 1:Determination of lead content.Flame atomic absorption spectrometry
GB/T 4324.10 Methods for chemical analysis of tungsten.Part 10:Determination of copper content.Flame atomic absorption spectrometry
GB/T 4324.11 Methods for chemical analysis of tungsten.Part 11:Determination of aluminum content.Inductively coupled plasma atomic emission spectrometry
GB/T 4324.12 Methods for chemical analysis of tungsten.Part 12:Determination of silicon content.Chlorization-molybdenum blue spectrophotometry
GB/T 4324.13 Methods of chemical analysis of tungsten Determination of calcium content Inductively coupled plasma atomic emission spectrometry
GB/T 4324.14 Methods for chemical analysis of tungsten.Part 14:Determination of residue content after chloride volatility.Gravimetric method
GB/T 4324.15 Methods for chemical analysis of tungsten.Determination of magnesium content.The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry
GB/T 4324.16 Methods for chemical analysis of tungsten.Part 16:Determination of loss content on ignition.Gravimetric method
GB/T 4324.17 Methods for chemical analysis of tungsten.Part 17:Determination of sodium content.Flame atomic absorption spectrometry
GB/T 4324.18 Methods for chemical analysis of tungsten.Part 18:Determination of potassium content.Flame atomic absorption spectrometry
GB/T 4324.19 Methods for chemical analysis of tungsten.Part 19:Determination of titanium content.The diantipyrylmethane photometric spectrophtometry
GB/T 4324.2 Methods of chemical analysis of tungsten Part 2: Determination of bismuth and arsenic content*, 2023-11-27 Update
GB/T 4324.20 Methods for chemical analysis of tungsten.Part 20:Determination of vanadium content.Inductively coupled plasma atomic emission spectrometry
GB/T 4324.21 Methods for chemical analysis of tungsten.Part 21:Determination of chromium content.Inductively coupled plasma atomic emission spectrometry
GB/T 4324.22 Methods for chemical analysis of tungsten.Part 22:Determination of manganese content.Inductively coupled plasma atomic emission spectrometry
GB/T 4324.23 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 4324.24 Methods for chemical analysis of tungsten.Part 24:Determination of phosphorus content.Molybdemum blue photometry
GB/T 4324.25 Methods for chemical analysis of tungsten.Part 25:Determination of oxygen content.Pulse heating inert gas fusion -infrared absorption method
GB/T 4324.26 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 4324.27 Methods for chemical analysis of tungsten.Part 27:Determination of carbon content.High frequency combustion -infrared absorption method
GB/T 4324.28 Methods for chemical analysis of tungsten.Part 28:Determination of molybdenum content.The thioyanate spectrophotometry
GB/T 4324.29 Methods for chemical analysis of tungsten--The gravimetric method for the determination of residue content after chloride volatility
GB/T 4324.3 Methods for chemical analysis of tungsten.Part 3:Determination of tin content.Hydrogenate atomic absorption spectrometry
GB/T 4324.30 Methods for chemical analysis of tungsten--The gravimetric method for the determination of loss content on ignition
GB/T 4324.4 Methods for chemical analysis of tungsten.Part 4:Determination of antimony content.Hydrogenate atomic absorption spectrometry
GB/T 4324.5 Methods for chemical analysis of tungsten.Part 5:Determination of arsenic content.Hydrogenate atomic absorption spectrometry
GB/T 4324.6 Methods for chemical analysis of tungsten.Part 6:Determination of iron content.1,10-phenanthroline spectrophotometry
GB/T 4324.7 Methods for chemical analysis of tungsten.Part 7:Determination of cobalt content.Inductively coupled plasma atomic emission spectrometry
GB/T 4324.8 Methods for chemical analysis of tungsten.Determination of nickel content.The inductively coupled plasma atomic emission spectrometry、flame atomic absorption spectrometry and dimethylglyoxime gravimetry
GB/T 4324.9 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 5314 Powders for powder metallurgical purposes.Sampling