Number Name Status
  • GB/T 748-2023 《Sulfate resistance portland cement》 Active Products
  • GB/T 6730.51-2023 《Iron ores—Determination of carbon content in carbonate—The caustic asbestos absorption gravimetric method》 Active Products
  • GB/T 22461.2-2023 《Surface chemical analysis—Vocabulary—Part 2:Terms used in scanning probe microscopy》 Active Products
  • GB/T 4937.42-2023 《Semiconductor devices—Mechanical and climatic test methods—Part 42:Temperature and humidity storage》 Active Products
  • GB/T 42638-2023 《The direct measuring method of the coal seam gas drainage radius in coal mine—Method of drainage volume》 Active Products
  • GB/T 22638.11-2023 《Test methods for aluminum and aluminum alloy foils—Part 11: Determination of mechanical properties》 Active Products
  • GB/T 17879-2023 《Gear—Surface temper etch inspection after grinding, chemical method》 Active Products
  • GB/T 10593.2-2023 《Method of the measuring environmental parameters for electric and electronic products—Part 2: Salt mist》 Active Products
  • GB/T 23981.2-2023 《Paints and varnishes—Determination of hiding power—Part 2:Method of black and white grid panel》 Active Products
  • GB/T 20147.4-2023 《Colorimetry—Part 4: CIE 1976 L* a* b* colour space》 Active Products
  • GB/T 20150-2023 《Erythema reference action spectrum and standard erythema dose》 Incoming Products
  • GB/T 20147.3-2023 《Colorimetry—Part 3:CIE tristimulus values》 Active Products
  • GB/T 713.7-2023 《Steel plate,sheet and strip for pressure equipments—Part 7:Stainless steel and heat resisting steel》 Active Products
  • GB/T 713.2-2023 《Steel plate,sheet and strip for pressure equipments—Part 2:Non-alloy and alloy steel with specified temperature properties》 Incoming Products
  • GB/T 35306-2023 《Determination of carbon and oxygen content in single crystal silicon—Low temperature fourier transform infrared spectrometry method》 Active Products
  • GB/T 5482-2023 《Metallic materials—Dynamic tear test method》 Active Products
  • GB/T 9722-2023 《Chemical reagent—General rules for the gas chromatography》 Active Products
  • GB/T 21888-2023 《C.I. Acid red 131(Acid brilliant red P-9B 150%)》 Active Products
  • GB/T 6609.35-2023 《Chemical analysis methods and determination of physical performance of alumina—Part 35: Determination of specific surface area—Nitrogen adsorption method》 Active Products
  • GB/T 6609.27-2023 《Chemical analysis methods and determination of physical performance of alumina—Part 27: Particle size analysis—Sieves method》 Active Products
  • GB/T 6609.25-2023 《Chemical analysis methods and determination of physical performance of alumina—Part 25: Method for the determination of tapped and untapped density》 Active Products
  • GB/T 22648-2023 《Aluminium foils used for aluminium-plastic composite tube and packaging pouch of battery》 Active Products
  • GB/T 26038-2023 《Tungsten base,high-density alloy plate》 Active Products
  • GB/T 26053-2023 《Carbide-based thermal spraying powders》 Active Products
  • GB/T 3884.18-2023 《Methods for chemical analysis of copper concentrates—Part 18:Determination of arsenic,antimony,bismuth,lead,zinc,nickel,cadmium,cobalt,chromium,aluminum oxide,magnesium oxide and calcium oxide contents—Inductively coupled plasma atomic emission spectrometry》 Active Products
  • GB/T 3884.12-2023 《Methods for chemical analysis of copper concentrates—Part 12:Determination of fluoride and chloride contents—Ion chromatography and potentiometric titration》 Active Products
  • GB/T 24179-2023 《Metallic materials—Residual stress determination—Indentation strain-gage method》 Active Products
  • GB/T 34213-2023 《High purity alumina for sapphire single crystal》 Active Products
  • GB/T 713.4-2023 《Steel plate,sheet and strip for pressure equipments—Part 4:Nickel-alloy steels with specified low temperature properties》 Active Products
  • GB/T 713.3-2023 《Steel plate,sheet and strip for pressure equipments—Part 3:Low alloy steel with specified low temperature properties》 Active Products
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