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GB/T 38216.3-2023 Steel slag Determination of free calcium oxide content EDTA titration and thermogravimetric analysis - 英文版 |
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GB/T 12910-2023 Paper and paperboard - Determination of titanium dioxide content - 英文版 |
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GB/T 43282.1-2023 Plastics. Determination of the aerobic biodegradation of plastic materials exposed to seawater. Part 1: Using methods to analyze the release of carbon dioxide. - 英文版 |
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GB/T 42513.5-2023 Methods for chemical analysis of nickel alloys Part 5: Determination of vanadium content Nitrous oxide-flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 42513.4-2023 Methods for chemical analysis of nickel alloys Part 4: Determination of silicon content Nitrous oxide-flame atomic absorption spectrometry and molybdenum blue spectrophotometry - 英文版 |
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GB/T 42513.3-2023 Methods for chemical analysis of nickel alloys Part 3: Determination of aluminum content Nitrous oxide-flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 6150.1-2023 Methods for chemical analysis of tungsten concentrates Part 1: Determination of tungsten trioxide content Ammonium tungstate ignition gravimetric method - 英文版 |
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GB/T 18115.6-2023 Methods for chemical analysis of rare earth impurities in rare earth metals and their oxides - Part 6: Determination of the amounts of lanthanum, cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium in europium - 英文版 |
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GB/T 3286.12-2023 Methods for chemical analysis of limestone and dolomite Part 12: Determination of potassium oxide and sodium oxide content Flame atomic absorption spectrometry - 英文版 |
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GB/T 3394-2023 Determination of trace amounts of carbon monoxide, carbon dioxide and acetylene in ethylene and propylene for industrial use - Gas chromatography - 英文版 |
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GB 31604.58-2023 National Food Safety Standards Food Contact Materials and Products Determination of Migration Amounts of 9 Antioxidants - 英文版 |
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GB 5009.227-2023 National food safety standards Determination of peroxide value in food - 英文版 |
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GB 5009.34-2022 National food safety standards Determination of sulfur dioxide in food - 英文版 |
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GB/T 8297-2023 Concentrated natural rubber latex - Determination of potassium hydroxide (KOH) value - 英文版 |
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GB/T 43102-2023 Metal coatings Porosity test Determination of porosity of gold or palladium coatings using sulfurous acid/sulfur dioxide vapor - 英文版 |
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GB/T 18882.1-2023 Methods for chemical analysis of mixed rare earth oxides of ionic rare earth ores - Part 1: Determination of the proportions of fifteen rare earth element oxides - 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 11064.2-2023 Lithium carbonate, lithium hydroxide monohydrate, lithium chloride chemical analysis methods - Part 2: Determination of lithium hydroxide content - acid-base titration - 英文版 |
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GB/T 12967.6-2022 Test methods for anodic oxidation coatings and organic polymer coatings on aluminium and aluminium alloys—Part 6: Determination of color and appearance - 英文版 |
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GB/T 12967.4-2022 Test methods for anodic oxidation coatings and organic polymer coatings on aluminium and aluminium alloys—Part 4: Determination of ultraviolet light and heat resistance - 英文版 |
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GB/T 3286.11-2022 Methods for chemical analysis of limestone and dolomite—Part 11: Determination of calcium oxide, magnesium oxide, silicon dioxide, aluminium oxide and iron oxide content—Wavelength dispersive X-ray fluorescence spectrometry (Fused cast bead method) - 英文版 |
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GB/T 8152.16-2022 Methods for chemical analysis of lead concentrates - Part 16: Determination of calcium oxide content - Flame atomic absorption spectrometry - 英文版 |
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GB/T 8754-2022 Anodic oxidation coatings and organic polymer coatings on aluminium and aluminium alloys—Determination of electrical insulation - 英文版 |
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GB/T 12690.1-2022 Chemical analysis methods for non-rare earth impurities in rare earth metals and their oxides—Part 1: Determination of carbon and sulfur content—High frequency-infrared absorption method - 英文版 |
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GB/T 42238-2022 Surfactants - Determination of free propylene oxide in propylene oxide polymeric surfactants - Gas chromatography - 英文版 |
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GB/T 1871.5-2022 Determination of magnesium oxide content in phosphate rocks and concentrates - Flame atomic absorption spectrometry, volumetric and inductively coupled plasma emission spectrometry - 英文版 |
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GB/T 5686.1-2022 Ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese Determination of manganese content Potentiometric titration, ammonium nitrate oxidation titration and perchloric acid oxidation titration - 英文版 |
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GB/T 40367-2021 Plastics—Determination of the aerobic biodegradation of non-floating materials exposed to marine sediment—Method by analysis of evolved carbon dioxide - 英文版 |
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GB/T 40496-2021 Determination of antioxidant content in jet fuel—High performance liquid chromatography - 英文版 |
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GB/T 40612-2021 Plastics—Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sediment interface—Method by analysis of evolved carbon dioxide - 英文版 |
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