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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards;  We provide Chinese GB standards and English version GB standards  Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services.
  •  China "YS" GB Standards List:
  • Standard  Code GB Standard Title Standard Class Order
  • GB/T 34500.2-2017
  • Chemical analYSis methods for rare earth residue and waste water—Part 2:Determination of chemical oxygen demand(COD) YS
    China National Standards
  • GB/T 34612-2017
  • Measurement method for X-ray double crYStal diffraction rocking curve of sapphire crystals YS
    China National Standards
  • GB/T 4513.6-2017
  • Monolithic (unshaped) refractory products—Part 6:Measurement of phYSical properties YS
    China National Standards
  • GB/T 34489-2017
  • Aluminium alloYS extruded profiles and sheets for roofing structure YS
    China National Standards
  • GB/T 18742.1-2017
  • Polypropylene (PP) piping sYStems for hot and cold water installations—Part 1: General YS
    China National Standards
  • GB/T 19070-2017
  • Stall regulation wind turbines—Control sYStem—Test method YS
    China National Standards
  • GB/T 8152.13-2017
  • Methods for chemical analYSis of lead concentrates—Part 13:Determination of thallium content—Inductively coupled plasma mass spectrometry and inductively coupled plasma-atomic emission spectrometry YS
    China National Standards
  • GB/T 34396-2017
  • Repair of flat wooden pallets used in pallet pool sYStem YS
    China National Standards
  • GB 34466-2017
  • Feed additive―L-lYSine monohydrochloride YS
    China National Standards
  • GB/T 34609.1-2017
  • Method for chemical analYSis of rhodium compounds—Part 1: Determination of rhodium content—Gravimetric method with hexaammine cobalt nitrate YS
    China National Standards
  • GB/T 8151.21-2017
  • Methods for chemical analYSis of zinc concentrates—Part 21:Determination of thallium content—Inductively coupled plasma mass spectrometry and inductively coupled plasma-atomic emission spectrometry YS
    China National Standards
  • GB/T 19345.1-2017
  • Amorphous and nanocrYStalline alloys—Part 1: Fe-based amorphous soft magnetic alloy strips YS
    China National Standards
  • GB/T 34493-2017
  • Aluminium alloYS extruded rods for easy-cutting YS
    China National Standards
  • GB/T 18882.2-2017
  • Chemical analYSis methods for mixed rare earth oxide of ion-absorpted type rare earth ore—Part 2:Determination of aluminum oxide content YS
    China National Standards
  • GB/T 34506-2017
  • Aluminum alloYS extruded profiles,bars,rods,and tubes from spray-formed billet YS
    China National Standards
  • GB/T 34397-2017
  • Management criterion of pallet pool sYStem YS
    China National Standards
  • GB/T 18742.3-2017
  • Polypropylene(PP) piping sYStems for hot and cold water installations—Part 3:Fittings YS
    China National Standards
  • GB/T 19345.2-2017
  • Amorphous and nanocrYStalline alloy—Part 2: Fe-based nanocrystalline soft magnetic alloy strips YS
    China National Standards
  • GB/T 34680.1-2017
  • Evaluation model and general evaluation indicator sYStem for smart cities—Part 1: General framework and requirements for developing evaluation sub-indicators YS
    China National Standards
  • GB/T 34480-2017
  • Aluminum alloYS die forgings, hand forgings, and rolled ring forgings from spray-formed billet YS
    China National Standards
  • GB/T 34599-2017
  • Ramp control sYStem application requirements YS
    China National Standards
  • GB/T 34471.2-2017
  • Elastic alloYS—Part 2: Constant elastic alloys YS
    China National Standards
  • GB/T 34483-2017
  • β transus temperature determination methods of zirconium and zirconium alloYS YS
    China National Standards
  • GB/T 34572-2017
  • Railway applications—Current collection sYStem—Pantographs,testing methods for carbon contact strips YS
    China National Standards
  • GB/T 1819.12-2017
  • Methods for chemical analYSis of tin concentrates—Part 12:Determination of silicon dioxide content—The silicomolybdenum blue spectrophotometry and sodium hydroxide titration YS
    China National Standards
  • GB/T 1819.9-2017
  • Methods for chemical analYSis of tin concentrates—Part 9:Determination of tungsten trioxide content—The thiocyanate spectrophotometric method YS
    China National Standards
  • GB/T 13747.24-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 24:Determination of carbon content—Infrared absorption method after high frequency combustion YS
    China National Standards
  • GB/T 1819.14-2017
  • Methods for chemical analYSis of tin concentrates—Part 14:Determination of copper content—Flame atomic absorption spectrometry YS
    China National Standards
  • GB/T 13747.11-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 11: Determination of molybdenum content—Thiocyanate spectrophotometry YS
    China National Standards
  • GB/T 13747.21-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 21:Determination of hydrogen content—Inert gas fusion-infrared absorption or thermal conductivity method YS
    China National Standards
  • GB/T 4698.19-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 19:Determination of molybdenum content—Thiocyanate-differential spectrophotometry YS
    China National Standards
  • GB/T 13747.25-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 25:Determination of niobium content—2-(5-bromo-2-pyridylazo)-5-diethylam inophenol spectrophotometry and inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 6115.2-2017
  • Series capacitors for power sYStems—Part 2: Protective equipment for series capacitor banks YS
    China National Standards
  • GB/T 1819.10-2017
  • Methods for chemical analYSis of tin concentrates—Part 10: Determination of sulfur content—High frequency combustion with infrared absorption method and potassium iodate titrimetric method YS
    China National Standards
  • GB/T 28807.3-2017
  • Railway applications—Compatibility between rolling stock and train detection sYStems—Part 3:Compatibility with axle counters YS
    China National Standards
  • GB/T 4698.23-2017
  • Methods for chemical analYSis of titanium sponge,titanium and titanium alloys—Part 23:Determination of palladium content—Stannous choride-potassium iodide spectrophotometry and inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 34499.1-2017
  • Method for chemical analYSis of iridium compounds—Part 1: Determination of iridium content—Electricity titration using ferrous sulfate YS
    China National Standards
  • GB/T 34428.5-2017
  • Communication rules of the devices of surveillance and control sYStem for expressway—Part 5:Tunnel environment detector YS
    China National Standards
  • GB/T 34626.2-2017
  • Metallic and other inorganic coatings—Cleaning and preparation of metal surfaces—Part 2: Non-ferrous metals and alloYS YS
    China National Standards
  • GB/T 1819.11-2017
  • Methods for chemical analYSis of tin concentrates—Part 11:Determination of aluminium oxide content—Chromazuzal S spectrophotometric method YS
    China National Standards
  • GB/T 4698.5-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 5:Determination of molybdenum content—Thiocyanate spectrophotometry and inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 34326-2017
  • Surface chemical analYSis—Depth profiling—Methods for ion beam alignment and the associated measurement of current or current density for depth profiling in AES and XPS YS
    China National Standards
  • GB/T 13747.22-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 22:Determination of oxygen and nitrogen contents—Inert gas fusion-infrared absorption and thermal conductivity method YS
    China National Standards
  • GB/T 28807.2-2017
  • Railway applications—Compatibility between rolling stock and train detection sYStems—Part 2: Compatibility with track circuits YS
    China National Standards
  • GB/T 13747.1-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 1:Determination of tin content—Potassium iodate titration and phenylfluorone-polyethylene glycoloctyl phenyl ether spectrophotometry YS
    China National Standards
  • GB/T 4698.12-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 12:Determination of vanadium content—Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 4698.3-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 3:Determination of silicon content—Molybdenum blue spectrophotometry YS
    China National Standards
  • GB/T 34630.5-2017
  • Friction stir welding—Aluminium and its alloYS—Part 5:Quality and inspection requirements YS
    China National Standards
  • GB/T 34626.1-2017
  • Metallic and other inorganic coatings—Cleaning and preparation of metal surfaces—Part 1: Ferrous metals and alloYS YS
    China National Standards
  • GB/T 13747.13-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 13: Determination of lead content—Polarography YS
    China National Standards
  • GB/T 13747.17-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 17:Determination of cadmium content—Polarography YS
    China National Standards
  • GB/T 1819.16-2017
  • Methods for chemical analYSis of tin concentrats—Part 16:Determination of siliver content—Flame atomic absorption spectrometry YS
    China National Standards
  • GB/T 1819.15-2017
  • Methods for chemical analYSis of tin concentrates—Part 15:Determination of fluorine content—The ion-selective electrode method YS
    China National Standards
  • GB/T 1819.7-2017
  • Methods for chemical analYSis of tin concentrates—Part 7:Determination of bismuth content—Flame atomic absorption spectrometric method YS
    China National Standards
  • GB/T 4698.8-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 8:Determination of aluminum content—Separation with sodium hydroxide-EDTA complex-metric titration and inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 4698.25-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 25:Determination of chlorine content—Silver chlorin spectrophotometry YS
    China National Standards
  • GB/T 23592-2017
  • CatalYSt for motorcycle exhaust purification YS
    China National Standards
  • GB/T 34569-2017
  • Simulation training sYStem for live working YS
    China National Standards
  • GB/T 13747.15-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 15:Determination of boron content—Curcumin spectrophotometry YS
    China National Standards
  • GB/T 1819.17-2017
  • Methods for chemical analYSis of tin concentrates—Part 17:Determination of mercury content—Atomic fluorescence spectrometric method YS
    China National Standards
  • GB/T 6901-2017
  • Chemical analYSis of silica refractories YS
    China National Standards
  • GB/T 20899.13-2017
  • Methods for chemical analYSis of gold ores-Part 13: Determination of lead,zinc,bismuth,cadminum,chromium,arsenic and mercury contents —Inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 34428.2-2017
  • Communication rules of the devices of surveillance and control sYStem for expressway—Part 2:Vehicle detector YS
    China National Standards
  • GB/T 13747.8-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 8:Determination of cobalt content—Nitroso-R-salt spectrophotometry YS
    China National Standards
  • GB/T 13747.14-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 14:Determination of uranium content—Polarography YS
    China National Standards
  • GB/T 34630.4-2017
  • Friction stir welding—Aluminium and its alloYS—Part 4:Specification and qualification of welding procedures YS
    China National Standards
  • GB/T 14142-2017
  • Test method for crYStallographic perfection of epitaxial layers in silicon—Etching technique YS
    China National Standards
  • GB/T 34362-2017
  • Non-destructive testing—Guide for eddy current testing using conformable sensor arraYS YS
    China National Standards
  • GB/T 34428.1-2017
  • Communication rules of the devices of surveillance and control sYStem for expressway—Part 1: Universal rules YS
    China National Standards
  • GB/T 34428.4-2017
  • Communication rules of the devices of surveillance and control sYStem for expressway—Part 4:Weather detector YS
    China National Standards
  • GB/T 34630.2-2017
  • Friction stir welding—Aluminium and its alloYS—Part 2:Design of weld joints YS
    China National Standards
  • GB/T 27022-2017
  • Conformity assessment—Requirements and recommendations for content of a third-party audit report on management sYStems YS
    China National Standards
  • GB/T 34428.3-2017
  • Communication rules of the devices of surveillance and control sYStem for expressway—Part 3:LED changeable message sign YS
    China National Standards
  • GB/T 34415-2017
  • Cavity ring-down spectroscopy sYStem for measurement of atmospheric carbon dioxide YS
    China National Standards
  • GB/T 4698.22-2017
  • Methods for chemical analYSis of titanium sponge ,titanium and titanium alloys—Part 22:Determination of niobium content—5-Br-PADAP spectrophotometry and inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 34428.6-2017
  • Communication rules of the devices of surveillance and control sYStem for expressway—Part 6:Wall map YS
    China National Standards
  • GB/T 34630.1-2017
  • Friction stir welding—Aluminium and its alloYS—Part 1:Terminology and definition YS
    China National Standards
  • GB/T 34630.3-2017
  • Friction stir welding—Aluminium and its alloYS—Part 3:Qualification of welding operators YS
    China National Standards
  • GB/T 4698.13-2017
  • Methods for chemical analYSis of titanium sponge,titanium and titanium alloys—Part 13:Determination of zirconium content—EDTA complexometric titration and inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 1819.13-2017
  • Methods for chemical analYSis of tin concentrates—Part 13: Determination of magnesium oxide content,calcium oxide content—Flame atomic absorption spectrometric method YS
    China National Standards
  • GB/T 34499.2-2017
  • Methods for chemical analYSis of iridium compounds—Part 2:Determination of silver, gold, platinum, palladium, rhodium, ruthenium, aluminium, copper, iron, nickel, lead, magnesium, manganese, tin, zinc, calcium, sodium, potassium, silicon content—Ind YS
    China National Standards
  • GB/T 3884.19-2017
  • Methods for chemical analYSis of copper concentrates—Part 19: Determination of thallium content—Inductively coupled plasma mass spectrometry YS
    China National Standards
  • GB/T 34581-2017
  • General technical requirements for photovoltaic sYStem DC circuit breakers YS
    China National Standards
  • GB/T 13747.20-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 20:Determination of hafnium content—Inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • 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 YS
    China National Standards
  • GB/T 13747.19-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part19:Determination of titanium content—Diantipyrylmethane spectrophotometry and the inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 4698.1-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 1:Determination of copper content—Flame atomic absorption spectrometry YS
    China National Standards
  • GB/T 4698.27-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 27:Determination of neodymium content—Inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 4698.9-2017
  • Methods for chemical analYSis of titanium sponge,titanium and titanium alloys—Part 9:Determination of tin content—Potassium iodate titration and inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 4698.28-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 28:Determination of ruthenium content—Inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 4698.24-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 24:Determination of nickel content—Dimethylglyoxime spectrophotometry and inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 34647-2017
  • Temper designation sYStem for titanium and titanium alloy YS
    China National Standards
  • GB/T 4698.18-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 18:Determination of tin content—Flame atomic absorption spectrometry YS
    China National Standards
  • GB/T 13747.16-2017
  • Methods for chemical analYSis of zirconium and zirconium alloys—Part 16:Determination of chloric content—Silver chloride nephelometry and ion selective electrode method YS
    China National Standards
  • GB/T 4698.20-2017
  • Methods for chemical analYSis of titanium sponge, titanium and titanium alloys—Part 4:Determination of manganese content—Potassium periodate spectrophotometry and inductively coupled plasma atomic emission spectrometry YS
    China National Standards
  • GB/T 1819.8-2017
  • Methods for chemical analYSis of tin concentrates—Part 8:Determination of zinc content—Flame atomic absorption spectrometric method YS
    China National Standards
  • GB/T 34234-2017
  • Analytical method of chemical composition for deoxy-sulphur and cyanide catalYSt from coal gas YS
    China National Standards
  • GB/T 34165-2017
  • Monitoring and testing code for energy conservation of oil and gas transportation pipeline sYStem YS
    China National Standards
  • GB/T 22571-2017
  • Surface chemical analYSis—X-ray photoelectron spectrometers—Calibration of energy scales YS
    China National Standards
  • GB/T 34316-2017
  • Security technology protection sYStem requirements for ports YS
    China National Standards

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