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GB/T 11417.8-2023 Ophthalmic optics Contact lenses Part 8: Determination of expiry date - 英文版 |
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GB/T 42794-2023 Nickel iron - Determination of carbon, sulfur, silicon, phosphorus, nickel, cobalt, chromium and copper content - Spark source atomic emission spectrometry - 英文版 |
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GB/T 6730.85-2023 Iron ore - Preparation and determination of certified standard samples for chemical analysis - 英文版 |
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GB/T 11064.9-2023 Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate, and lithium chloride Part 9: Determination of sulfate content Barium sulfate turbidity method - 英文版 |
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GB/T 8151.26-2023 Methods for chemical analysis of zinc concentrates Part 26: Determination of silver content Acid dissolution-flame atomic absorption spectrometry - 英文版 |
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GB/T 6609.35-2023 Methods for chemical analysis and determination of physical properties of alumina Part 35: Determination of specific surface area Nitrogen adsorption method - 英文版 |
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GB/T 6609.27-2023 Methods for chemical analysis and determination of physical properties of alumina - Part 27: Particle size analysis - Sieving method - 英文版 |
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GB/T 6609.25-2023 Methods for chemical analysis and determination of physical properties of alumina - Part 25: Determination of loose and tapped density - 英文版 |
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GB/T 6150.15-2023 Methods for chemical analysis of tungsten concentrates Part 15: Determination of bismuth content Hydride generation atomic fluorescence spectrometry and flame atomic absorption spectrometry - 英文版 |
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GB/T 6150.12-2023 Methods for chemical analysis of tungsten concentrates Part 12: Determination of silica content Silicon-molybdenum blue spectrophotometry and gravimetric method - 英文版 |
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GB/T 6150.10-2023 Methods for chemical analysis of tungsten concentrates Part 10: Determination of lead content Hydride generation atomic fluorescence spectrometry and flame atomic absorption spectrometry - 英文版 |
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GB/T 6150.8-2023 Methods for chemical analysis of tungsten concentrates Part 8: Determination of molybdenum content Thiocyanate spectrophotometry - 英文版 |
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GB/T 6150.6-2023 Methods for chemical analysis of tungsten concentrates Part 6: Determination of wet water content Gravimetric method - 英文版 |
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GB/T 6150.4-2023 Chemical analysis methods for tungsten concentrates Part 4: Determination of sulfur content High-frequency induction infrared absorption method and combustion-iodometric method - 英文版 |
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GB/T 3884.12-2023 Methods for chemical analysis of copper concentrates Part 12: Determination of fluorine and chlorine content Ion chromatography and potentiometric titration - 英文版 |
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GB/T 17421.2-2023 General Principles for Machine Tool Inspection Part 2: Determination of Positioning Accuracy and Repeatable Positioning Accuracy of CNC Axis - 英文版 |
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GB/T 42924.4-2023 Plastics. Smoke generation. Determination of corrosiveness of combustion streams. Part 4: Dynamic decomposition method using a cone corrosion meter. - 英文版 |
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GB/T 42924.1-2023 Plastics. Smoke generation. Determination of corrosiveness of combustion streams. Part 1: General terminology and applications. - 英文版 |
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GB/T 42919.6-2023 Plastics - Determination of thermal conductivity and thermal diffusivity - Part 6: Comparative method based on temperature modulation technology - 英文版 |
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GB/T 42919.4-2023 Plastics - Determination of thermal conductivity and thermal diffusivity - Part 4: Laser flash method - 英文版 |
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GB/T 42919.3-2023 Plastics - Determination of thermal conductivity and thermal diffusivity - Part 3: Temperature wave analysis method - 英文版 |
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GB/T 42919.1-2023 Plastics - Determination of thermal conductivity and thermal diffusivity - Part 1: General principles - 英文版 |
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GB/T 33061.7-2023 Plastics - Determination of dynamic mechanical properties - Part 7: Non-resonant torsional vibration method - 英文版 |
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GB/T 33061.6-2023 Plastics - Determination of dynamic mechanical properties - Part 6: Non-resonant shear vibration method - 英文版 |
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GB/T 33061.5-2023 Plastics - Determination of dynamic mechanical properties - Part 5: Non-resonant bending vibration method - 英文版 |
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GB/T 33061.4-2023 Plastics - Determination of dynamic mechanical properties - Part 4: Non-resonant tensile vibration method - 英文版 |
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GB/T 5758-2023 Method for Determination of particle size, effective particle size and uniformity coefficient of ion exchange resin - 英文版 |
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GB/T 40261.1-2023 Ergonomics of the thermal environment Assessment of the thermal environment in vehicles Part 1: Principles and methods of heat stress assessment and equivalent temperature determination - 英文版 |
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GB/T 23981.2-2023 Paints and varnishes - Determination of hiding power - Part 2: Black and white grid method - 英文版 |
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GB/T 35210.1-2023 Determination of isothermal adsorption/desorption capacity of shale methane - Part 1: Static volumetric method - 英文版 |
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