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Chinese National Standard List: Rare refractory metals and their compounds

Title Standard No. Implemented On
Electrolyte for vanadium flow batteryGB/T 37204-20182019-11-1
Tungsten sheetGB/T 3875-20172018-6-1
Molybdenum and molybdenum alloy plate and sheetGB/T 3876-20172018-5-1
Niobium sheet, strip and foilGB/T 3630-20172018-5-1
Tantalum and tantalum alloy sheet, strip and foilGB/T 3629-20172018-5-1
Tungsten tubesGB/T 34503-20172018-4-1
Zirconium and zirconium alloy sheet, strip and foilGB/T 21183-20172018-4-1
Ammonium molybdateGB/T 3460-20172018-4-1
VanadiumGB/T 4310-20162017-11-1
Molybdenum and molybdenum alloy boatsYS/T 1146-20162017-1-1
Evaporated vanadium materialYS/T 1142-20162017-1-1
Tungsten electrodes for arc welding and plasma welding and cuttingGB/T 31908-20152016-6-1
Tantalum sputtering targetsYS/T 1024-20152015-10-1
Potassium metavanadateYS/T 1021-20152015-10-1
Vanadium-aluminium-tin-chromium master alloyYS/T 1078-20152015-10-1
Zirconium spongeYS/T 397-20152015-10-1
Ammonium metavanadateYS/T 1022-20152015-10-1
High-purity tungsten and tungsten alloy sputtering target used in electronic filmYS/T 1025-20152015-10-1
Cesium nitrateYS/T 1081-20152015-10-1
Tantalum barYS/T 1005-20142015-4-1
Vandium-Aluminum master alloyYS/T 579-20142015-4-1
Molybdenum discsGB/T 14592-20142015-2-1
Molybdenum and molybdenum alloy barGB/T 17792-20142015-2-1
Tungstic OxideGB/T 3457-20132014-8-1
Methods of sampling and sample preparation of tungsten concentrates in bagsGB/T 4414-20132014-8-1
Methods for chemical analysis of high purity rhenium and ammonium perrhenate―Determination of beryllium,sodium,magnesium,aluminum,potassium,calcium,titanium,chromium,manganese,iron,cobalt,nickel,copper,zinc,arsenic,molybdenum,cadmium,indium,tin,antimony,YS/T 902-20132014-3-1
Methods for Chemical Analysis of High Purity Niobium - Determination of Trace Impurity Element Content - Inductively Coupled Plasma Mass SpectrometryYS/T 896-20132014-3-1
Methods for Chemical Analysis of The High Purity Tungsten - Determination of Trace Impurity Element Content - Inductively Coupled Plasma Mass SpectrometryYS/T 900-20132014-3-1
Methods for Chemical Analysis of The High Purity Tantalum - Determination of Trace Impurity Element Content - Inductively Coupled Plasma Mass SpectrometryYS/T 898-20132014-3-1
Sponge hafniumYS/T 399-20132014-3-1
Ammonium PerrhenateYS/T 894-20132014-3-1
Methods for Chemical Analysis of High Purity Niobium - Determination of Trace Impurity Element Content - Glow Discharge Mass SpectrometryYS/T 897-20132014-3-1
Zirconium and Zirconium Alloy Dics and RingsYS/T 913-20132014-3-1
Methods for Chemical Analysis of High Purity Tantalum - Determination of Trace Impurity Element Content - Glow Discharge Mass SpectrometryYS/T 899-20132014-3-1
Determination of Thorium Dioxide Content in Thorium - Tungsten Alloys Gravimetric MethodYS/T 501-20132014-3-1
Methods for Chemical Analysis of High Purity Rhenium - Determination of Trace Impurity Element Content - Glow Discharge Mass SpectrometryYS/T 895-20132014-3-1
Methods for Chemical Analysis of High Purity Tungsten - Determination of Trace Impurity Element Content - Glow Discharge Mass SpectrometryYS/T 901-20132014-3-1
Determination of Cerium Content in Cerium-tungsten Alloys Oxidation - Reduction TitrationYS/T 500-20132014-3-1
Methods for chemical analysis of molybdenum—Part 25:Determination of hydrogen content—Inert gas fusion infrared absorption method/thermal conductivity methodGB/T 4325.25-20132014-2-1
Methods for chemical analysis of molybdenum—Part 14:Determination of magnesium content—Flame atomic absorption spectrometryGB/T 4325.14-20132014-2-1
Methods for chemical analysis of molybdenum—Part 2:Determination of cadmium content—Flame atomic absorption spectrometryGB/T 4325.2-20132014-2-1
Methods for chemical analysis of molybdenum—Part 19:Determination of chromium content—Diphenylcarbazide spectrophotometryGB/T 4325.19-20132014-2-1
Methods for chemical analysis of molybdenum—Part 18:Determination of vanadium content—N-benzoyl-N-phenylhydroxylamine spectrophotometry and inductively coupled plasma atomic emission spectrometryGB/T 4325.18-20132014-2-1
Methods for chemical analysis of molybdenum—Part 17:Determination of titanium content—Diantipyrylmethane spectrophotometry and inductively coupled plasma atomic emission spectrometryGB/T 4325.17-20132014-2-1
Methods for chemical analysis of molybdenum—Part 16:Determination of potassium content—Flame atomic absorption spectrometryGB/T 4325.16-20132014-2-1
Method for chemical analysis of molybdenum—Part 24:Determination of tungsten content—Inductively coupled plasma atomic emission spectrometryGB/T 4325.24-20132014-2-1
Methods for chemical analysis of molybdenum—Part 13:Determination of calcium content—Flame atomic absorption spectrometryGB/T 4325.13-20132014-2-1
Methods for chemical analysis of molybdenum—Part 8:Determination of cobalt content—5-Cl-PADAB spectrophotometry and flame atomic absorption spectrometryGB/T 4325.8-20132014-2-1
Methods for chemical analysis of molybdenum—Part 15:Determination of sodium content—Flame atomic absorption spectrometryGB/T 4325.15-20132014-2-1
Methods for chemical analysis of molybdenum—Part 12:Determination of silicon content—Inductively coupled plasma atomic emission spectrometryGB/T 4325.12-20132014-2-1
Methods for chemical analysis of molybdenum—Part 23:Determination of oxygen and nitrogen contents—Inert gas fusion-infrared absorption and thermal conductivity methodGB/T 4325.23-20132014-2-1
Methods for chemical analysis of molybdenum—Part 5:Determination of antimony content—Atomic fluorescence spectrometryGB/T 4325.5-20132014-2-1
Methods for chemical analysis of molybdenum―Part 26:Determination of aluminium,magnesium,calcium,vanadium,chromium,manganese,iron,cobalt,nickel,copper,zinc,arsenic,cadmium,tin,antimony,tungsten,lead and bismuth contents―Inductively coupled plasma mass sGB/T 4325.26-20132014-2-1
Methods for chemical analysis of molybdenum—Part 10:Determination of copper content—Flame atomic absorption spectrometryGB/T 4325.10-20132014-2-1
Methods for chemical analysis of molybdenum—Part 6:Determination of arsenic content—Atomic fluorescence spectrometryGB/T 4325.6-20132014-2-1
Methods for chemical analysis of molybdenum—Part 7:Determination of iron content—1,10-phenanthroline spectrophotometry and inductively coupled plasma atomic emission spectrometryGB/T 4325.7-20132014-2-1
Methods for chemical analysis of molybdenum - Part 3: Determination of bismuth content - Atomic fluorescence spectrometryGB/T 4325.3-20132014-2-1
Methods for chemical analysis of molybdenum—Part 11:Determination of aluminum content—Chromazurol S spectrophotometry and inductively coupled plasma atomic emission spectrometryGB/T 4325.11-20132014-2-1
Methods for chemical analysis of molybdenum—Part 21:Determination of carbon content and sulfur content—High frequency combustion-infrared absorption methodGB/T 4325.21-20132014-2-1
Methods for chemical analysis of molybdenum - Part 1: Determination of lead content - Graphite furnace atomic absorption spectrometryGB/T 4325.1-20132014-2-1
Methods for chemical analysis of molybdenum—Part 9:Determination of nickel content—Dimethylglyoxime spectrophotometry and flame atomic absorption spectrometryGB/T 4325.9-20132014-2-1
Methods for chemical analysis of molybdenum—Part 20:Determination of manganese content—Flame atomic absorption spectrometryGB/T 4325.20-20132014-2-1
Methods for chemical analysis of molybdenum—Part 4:Determination of tin content—Atomic fluorescence spectrometryGB/T 4325.4-20132014-2-1
Methods for chemical analysis of molybdenum—Part 22:Determination of phosphorus content—Molybdenum blue spectrophotometryGB/T 4325.22-20132014-2-1
Methods for chemical analysis of tungsten - Part 16: Determination of loss content on ignition - Gravimetric methodGB/T 4324.16-20122013-10-1
Methods for chemical analysis of tungsten - Part 21: Determination of chromium content - Inductively coupled plasma atomic emission spectrometryGB/T 4324.21-20122013-10-1
Methods for chemical analysis of tungsten - Part 4: Determination of antimony content - Hydrogenate atomic absorption spectrometryGB/T 4324.4-20122013-10-1
Methods for chemical analysis of tungsten - Part 6: Determination of iron content-1,10-phenanthroline spectrophotometryGB/T 4324.6-20122013-10-1
Methods for chemical analysis of tungsten - Part 2: Determination of bismuth content - Hydrogenate atomic absorption spectrometryGB/T 4324.2-20122013-10-1
Methods for chemical analysis of tungsten - Part 1: Determination of lead content - Flame atomic absorption spectrometryGB/T 4324.1-20122013-10-1
Methods for chemical analysis of tungsten - Part 12: Determination of silicon content - Chlorization-molybdenum blue spectrophotometryGB/T 4324.12-20122013-10-1
Methods for chemical analysis of tungsten - Part 25: Determination of oxygen content - Pulse heating inert gas fusion-infrared absorption methodGB/T 4324.25-20122013-10-1
Methods for chemical analysis of tungsten - Part 28: Determination of molybdenum content - The thioyanate spectrophotometryGB/T 4324.28-20122013-10-1
Methods for chemical analysis of tungsten - Part 9: Determination of cadmium content - Inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometryGB/T 4324.9-20122013-10-1
Methods for chemical analysis of tungsten - Part 19: Determination of titanium content - The diantipyrylmethane photometric spectrophtometryGB/T 4324.19-20122013-10-1
Methods for chemical analysis of tungsten - Part 3: Determination of tin content - Hydrogenate atomic absorption spectrometryGB/T 4324.3-20122013-10-1
Methods for chemical analysis of tungsten - Part 17: Determination of sodium content - Flame atomic absorption spectrometryGB/T 4324.17-20122013-10-1
Methods for chemical analysis of tungsten—Part 10:Determination of copper content—Flame atomic absorption spectrometryGB/T 4324.10-20122013-10-1
Methods for chemical analysis of tungsten - Part 26: Determination of nitrogen content - Pulse heating inert gas fusion-thermal conductive method and the Nessler reagent spectrophotometryGB/T 4324.26-20122013-10-1
Methods for chemical analysis of tungsten - Part 5: Determination of arsenic content - Hydrogenate atomic absorption spectrometryGB/T 4324.5-20122013-10-1
Methods for chemical analysis of tungsten - Part 14: Determination of residue content after chloride volatility - Gravimetric methodGB/T 4324.14-20122013-10-1
Titanium and titanium alloy strip and foilGB/T 3622-20122013-10-1
Methods for chemical analysis of tungsten - Part 23: Determination of sulfur content - The combustion-conductometric titration and high frequency combustion-infrared absorption methodGB/T 4324.23-20122013-10-1
Methods for chemical analysis of tungsten - Part 18: Determination of potassium content - Flame atomic absorption spectrometryGB/T 4324.18-20122013-10-1
Methods for chemical analysis of tungsten - Part 27:：Determination of carbon content - High frequency combustion-infrared absorption methodGB/T 4324.27-20122013-10-1
Methods for chemical analysis of tungsten - Part 20: Determination of vanadium content - Inductively coupled plasma atomic emission spectrometryGB/T 4324.20-20122013-10-1
Methods for chemical analysis of tungsten - Part 7: Determination of cobalt content - Inductively coupled plasma atomic emission spectrometryGB/T 4324.7-20122013-10-1
Methods for chemical analysis of tungsten - Part 24: Determination of phosphorus content - Molybdemum blue photometryGB/T 4324.24-20122013-10-1
Methods for chemical analysis of tungsten - Part 11: Determination of aluminum content - Inductively coupled plasma atomic emission spectrometryGB/T 4324.11-20122013-10-1
Methods for chemical analysis of tungsten - Part 22: Determination of manganese content - Inductively coupled plasma atomic emission spectrometryGB/T 4324.22-20122013-10-1
Methods for chemical analysis of niobium-titanium alloy—Part 1:Determination of aluminium、nickel、silicon、iron、chromium、copper and tantalum content—Inductively coupled plasma atomic emission spectrometryYS/T 861.1-20132013-9-1
Zircon concentrateYS/T 858-20132013-9-1
Methods for Chemical Analysis of Niobium-titanium Alloy - Part 5: Determination of Titanium Content - The Ammonium Ferric Sulfate TitrationYS/T 861.5-20132013-9-1
Ziconium and Ziconium Alloy Welding WiresYS/T 887-20132013-9-1
Niobium IngotYS/T 884-20132013-9-1
Methods for chemical analysis of niobium-titanium alloy—Part 2:Determination of oxygen and nitrogen content—Inert gas fusion infrared/thermal conductivity methodYS/T 861.2-20132013-9-1
Methods for chemical analysis of niobium-titanium alloy—Part 4:Determination of carbon content—The high-frequency infrared absorption methodYS/T 861.4-20132013-9-1
Vanadium pentoxide used for non-ferrous master alloy and catalystYS/T 860-20132013-9-1
Zirconium and zirconium alloy castingsYS/T 853-20122013-6-1
Tantalum IngotYS/T 827-20122013-3-1
Tantalum PentoxideYS/T 427-20122013-3-1
Niobium PentoxideYS/T 428-20122013-3-1
TZM Molybdenum Alloy BarsYS/T 831-20122013-3-1
Test method for sag of tungsten wireYS/T 515-20122012-11-1
Determination method for secondary recrystallization temperature of tungsten wireYS/T 516-20122012-11-1
Scraps of niobium and niobium alloyGB/T 27688-20112012-10-1
Scraps of molybdenum and molybdenum alloyGB/T 27687-20112012-10-1
Designation and composition of tantalum and tantalum alloyYS/T 751-20112012-7-1
Zirconium and zirconium alloy sheet and plate for pressure vesselYS/T 753-20112012-7-1
Sintered molybdenum alloy mandrels for tube-rollingYS/T 245-20112012-7-1
Synthetic scheeliteYS/T 524-20112012-7-1
Scraps of zirconium and zirconium alloyGB/T 26931-20112012-5-1
Ingots of zirconium and zirconium alloyGB/T 8767-20102011-11-1
Zirconium and zirconium alloy seamless tubesGB/T 26283-20102011-11-1
Zirconium and zirconium alloy bars and wiresGB/T 8769-20102011-11-1
Designation and composition of zirconium and zirconium alloysGB/T 26314-20102011-11-1
Powder metallurgic tantalum sheets for deep-drawningGB/T 26037-20102011-10-1
Tantalum wire for capacitorsGB/T 26012-20102011-10-1
Niobium and niobium-zirconium alloy wireGB/T 26062-20102011-10-1
Tungsten base,high-density alloy plateGB/T 26038-20102011-10-1
High precision tungsten plate of resisting rayGB/T 26023-20102011-10-1
Niobium-zirconium alloys seamless tube for electric light sourceGB/T 26009-20102011-10-1
Methods for chemical analysis of high impurity tungsten mineral—Determination of tungsten trioxide content—Twice separation and igniting gravimetric methodGB/T 26019-20102011-10-1
Scraps of tantalum and tantalum alloyGB/T 25955-20102011-9-1
Lithium tantalate single crystalsYS/T 42-20102011-3-1
Flat magneting sputtering target—Niobium target for optical coatingYS/T 718-20092010-6-1
Methods for chemical analysis of tungsten concentrates—Determination of phosphorus content—The phosphorus molybdenum yellow spectrophotometryGB/T 6150.3-20092010-6-1
Methods for chemical analysis of tungsten concentrates—Determination of molybdenum content—The thiocyanate spectrophotometryGB/T 6150.8-20092010-6-1
Methods for chemical analysis of tungsten concentrates—Determination of copper content—Flame atomic absorption spectrometryGB/T 6150.9-20092010-6-1
Roasted molybdenum concentrateGB/T 24482-20092010-6-1
Methods for chemical analysis of tungsten concentrates—Determination of iron content—The sulfosalicylic acid spectrophotometryGB/T 6150.16-20092010-6-1
Flat magneting sputtering target—Silicon target for optical coatingYS/T 719-20092010-6-1
Sampling and preparation of the ferromolybdenum samplesGB/T 24484-20092010-6-1
Methods for chemical analysis of ammonium metatungstate - Part 2: Determination of zinc content - Flame atomic absorption spectrometryGB/T 23368.2-20092010-1-1
Methods for chemical analysis of ammonium metatungstate - Part 1: Determination of water insoluble content - Gravimetric analysisGB/T 23368.1-20092010-1-1
Tungsten wire for lighting and electronic equipmentsGB/T 23272-20092009-11-1
Methods for chemical analysis of tungsten - Determination of calcium content - The inductively coupled plasma atomic emission spectrometryGB/T 4324.13-20082008-12-1
Methods for chemical analysis of tungsten - Determination of nickel content - The inductively coupled plasma atomic emission spectrometry 、 flame atomic absorption spectrometry and diGB/T 4324.8-20082008-12-1
Methods for chemical analysis of tungsten concentrates—Determination of antimony content—Hydride reduction atomic absorption spectrometryGB/T 6150.17-20082008-12-1
Methods for chemical analysis of tungsten concentrates—Determination of arsenic content—Hydride reduction atomic absorption spectrometry and the silver diethyldithiocarbamate(DDTC-Ag) photometryGB/T 6150.13-20082008-12-1
Methods for chemical analysis of tungsten concentrates - Determination of silicon dioxide content - The silicomolybdenum blue spectrophotometry and the gravimetry GB/T 6150.12-20082008-12-1
Methods for chemical analysis of tungsten - Determination of magnesium content - The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometryGB/T 4324.15-20082008-12-1
Methods for chemical analysis of tungsten concentrates—Determination of tin content—The potassium iodate volumetry and hydrogenate atomic absorption spectrometryGB/T 6150.2-20082008-12-1
Methods for chemical analysis of tungsten concentrates - Determination of tantalum content and niobium content - Inductively coupled plasma emission spectrometry and spectrophotometryGB/T 6150.7-20082008-12-1
Methods for chemical analysis of tungsten concentrates - Determination of lead content - Flame atomic absorption spectrometric methodGB/T 6150.10-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of phosphorus content-The antimony-ascorbic acid-molybdenum blue spectrophotometric methodYS/T 568.7-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of zirconium oxide and hafnium oxide total content-Mandelic acid gravimetric methodYS/T 568.1-20082008-9-1
Methods for chemical analysis of tungsten concentrates - Determination hygroscopic moisture content - Gravimetric methodGB/T 6150.6-20082008-9-1
Molybdenum-aluminium intermediate alloyYS/T 676-20082008-9-1
Methods for chemical analysis of tungsten concentrates - Determination of tungsten trioxide content - The ammonium tungstate igniting gravimetric methodGB/T 6150.1-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of titamium content-Diantipyrylmethane spectrophotometric methodYS/T 568.6-20082008-9-1
Methods for chemical analysis of tungsten concentrates - Determination of calcium content - EDTA volumetric method and flame atomic absorption spectrometric methodGB/T 6150.5-20082008-9-1
Methods for chemical analysis of tungsten concentrates - Determination of sulfur content - The high frequency-infrared absorption methodGB/T 6150.4-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of Al Ca Mg Mn Na Ni Fe Ti Zn Mo V Zr content in hafnium oxide-Inductively coupled plasma atomic emission YS/T 568.9-20082008-9-1
Methods for chemical analysis of tungsten concentrates - Determination of manganese content - The ammonium ferrous sulfate volumetric method and flame atomic absorption spectrometric methodGB/T 6150.14-20082008-9-1
Method for chemical analysis of tungsten-molybdenum alloy The EDTA volumetric method for the determination of molybdenum contentYS/T 508-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of nickle content-α-Furil dioxime spectrophotometric methodYS/T 568.11-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of aluminium content-Chronic azurol-S-tetradrcylpyridine chloride spectrophotometric methodYS/T 568.4-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of sodium content-Flame atomic absorption spectrophotometric methodYS/T 568.5-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of manganese content-Potassium periodate spectrophotometric methodYS/T 568.10-20082008-9-1
Methods for chemical analysis of tungsten concentrates - Determination of zinc content - Flame atomic absorption spectrometric methodGB/T 6150.11-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of Al Ca Mg Mn Na Ni Fe Ti Zn Mo V Hf content in zirconium oxide-Inductively coupled plasma atomic emissioYS/T 568.8-20082008-9-1
Tantalum and tantalum alloy rodsGB/T 14841-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of iron content-Sulfosalicylic acid spectrophotometric methodYS/T 568.2-20082008-9-1
Tantalum and tantalum alloy seamless tubesGB/T 8182-20082008-9-1
Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of silicon content-Spectrophotometric method with the reduced silicomolybdic complexYS/T 568.3-20082008-9-1
Methods for chemical analysis of tungsten concentrates - Determination of bismuth content - Flame atomic absorption spectrometric methodGB/T 6150.15-20082008-9-1
Zirconium and zirconium alloy sheet strip and foilGB/T 21183-20072008-6-1
Molybdenum and molybdenum alloy plate and sheetGB/T 3876-20072008-6-1
Niobium and niobium alloy seamless tubesGB/T 8183-20072008-6-1
Ammonium paratungstateGB/T 10116-20072008-6-1
Niobium barsGB/T 6896-20072008-6-1
Sponge zirconiumYS/T 397-20072008-5-1
Designation and composition of molybdenum and molybdenum alloy wrought productYS/T 660-20072008-5-1
Lithium niobate single crystalsYS/T 554-20072008-5-1
Designation and composition of wrought niobium and niobium alloyYS/T 656-20072008-5-1
Tantalum powderYS/T 573-20072008-5-1
Designation and composition of tungsten and tungsten alloy wrought productYS/T 659-20072008-5-1
Ammonium molybdateGB/T 3460-20072007-11-1
Tantalum foil for capacitorsYS/T 640-20072007-10-1
Molybdenum foilGB/T 3877-20062007-2-1
Tungsten sheetGB/T 3875-20062007-2-1
Tantalum and tantalum alloy sheet，strip and foilGB/T 3629-20062006-11-1
Niobium sheet，strip and foilGB/T 3630-20062006-11-1
Technical requirements of synthetic scheeliteYS/T 524-20062006-10-11
Vanadium pentoxideYB/T 5304-20062006-10-11
Tantalum powdersYS/T 573-20062006-10-11
Potassium fluorotantalateYS/T 578-20062006-8-1
Vanadium-Aluminum master alloyYS/T 579-20062006-8-1
Specification for molybdenum and molybdenum alloy barGB/T 17792-19992000-3-1
Niobium barsGB/T 6896-19981999-8-1
Niobium powders for metallurgyYS/T 258-19961996-12-2
Tantalum powders for metallurgyYS/T 259-19961996-12-1
Sintered molybdenum alloy mandrels for tube rollingYS/T 245-19941996-6-1
Tantalum powdersGB/T 3136-19951996-3-1
Tantalum wiresGB/T 3463-19951996-3-1
Tantalum and tantalum alloy rods and barsGB/T 14841-19931994-9-1
Niobium rods and barsGB/T 14842-19931994-9-1
Lithium niobate single crystalsGB/T 14843-19931994-9-1
discsGB/T 14592-19931994-7-1
Ammonium paratungstateGB/T 10116-19881989-1-2
Niobium seamless tubesGB/T 8183-19871988-7-1
Tantalum and tantalum alloy seamless tubesGB/T 8182-19871988-7-1
Technical requirements of synthetic scheeliteGB/T 5192-19851986-3-1
Ceriated tungsten electrodes for inert gas arc welding and plasma welding and cuttingGB/T 4191-19841985-8-1
VanadiumGB/T 4310-19841985-3-1
Molybdenum tungsten alloy wiresGB/T 4183-19841984-11-1
Molybdenum and molybdenum alloy sheetGB/T 3876-19831984-10-1
Molybdenum foilGB/T 3877-19831984-10-1
Tungsten sheetGB/T 3875-19831984-10-1
Tantalum and tantalum alloy sheet,strip and foilGB/T 3629-19831984-2-1
Tantalum foil for condensersGB 3628-19831984-2-1
Niobium sheet,strip and foilGB/T 3630-19831984-2-1
Doped tungsten barsGB/T 4189-19841984-1-1
Molybdenum rodsGB/T 4188-19841984-1-1
Doped molybdenum barsGB/T 4190-19841984-1-1
Molybdenum tungsten alloy barsGB/T 4185-19841984-1-1
Tungsten rodsGB/T 4187-19841984-1-1
Technical requirements of ammonium molybdateGB/T 3460-19821983-10-1
Bars and plate blanks of molybdenumGB/T 3462-19821983-10-1
Niobium and niobium alloys rods and barsGB/T 14842-20071900-1-2
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