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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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GB/T 41223-2021 Soil quality—Determination of potential nitrification and inhibition of nitrification—Rapid test by ammonium oxidation - 英文版 |
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GB/T 12690.8-2021 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 8:Determination of sodium content - 英文版 |
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GB/T 40789-2021 Gas analysis—Online automated measuring systems for content of carbon monoxide,carbon dioxide and oxygen—Determination of performance characteristics - 英文版 |
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GB/T 12690.4-2021 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 4: Determination of oxygen and nitrogen contents—Impulse-infrared absorption and impulse-thermal conductivity method - 英文版 |
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GB/T 18115.4-2021 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides -- Part 4: Determination of lanthanum, cerium, praseodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt - 英文版 |
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GB/T 12690.7-2021 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 7: Determination of silicon content - 英文版 |
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GB/T 13697-2021 Determination of carbon in uranium oxide powder and pellets—High-frequency inductive furnace combustion-infrared detection method - 英文版 |
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GB/T 39138.2-2020 Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 2：Determination of nickel content—Dimethylglyoxime gravimetric method - 英文版 |
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GB/T 39100-2020 Determination of antioxidant activity for polypeptides—DPPH and ABTS methods - 英文版 |
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GB/T 3286.10-2020 Methods for chemical analysis of limestone and dolornite一Part 10:Determination of titanium dioxide content一Diantipyrylmethane spectrophotometric method - 英文版 |
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GB/T 13747.3-2020 Methods for chemical analysis of zirconium and zirconium alloys--Part 3: Determination of nickel content--Dimethyglyoxime spectrophotometry andinductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 18115.2-2020 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides—Part 2: Determination of lanthanum, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt - 英文版 |
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GB/T 18115.1-2020 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides—Part 1: Determination of cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttri - 英文版 |
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GB 23200.117-2019 National food safety standard - Determination of oxine-copper residue infoods of plant origin - High performance liquid chromatography - 英文版 |
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GB/T 38286-2019 Polyethylene(PE)，polypropylene(PP) and polystyrene(PS) resin―Determination of peroxide value - 英文版 |
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GB/T 38286-2019 Polyethylene(PE)，polypropylene(PP) and polystyrene(PS) resin―Determination of peroxide value - 英文版 |
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GB/T 18882.3-2019 Chemical analysis methods for mixed rare earth oxide of ion-absorption rare earth ore—Part 3: Determination of silicon dioxide content - 英文版 |
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GB/T 8152.14-2019 Methods for chemical analysis of lead concentrates—Part 14: Determination of silicon dioxide content—Molybdenum blue spectrophotometry - 英文版 |
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GB/T 37626-2019 Determination of 9 forbidden penicillins including amoxicillin in cosmetics—Liquid chromatography-tandem mass spectrometry - 英文版 |
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GBZ/T 300.96-2018 Determination of toxic substances in workplace air - Part 96: sevoflurane, isoflurane and enflurane - 英文版 |
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GBZ/T 300.164-2018 Determination of toxic substances in the workplace - Part 164: Diphenylmethane diisocyanate - 英文版 |
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GBZ/T 300.163-2018 Determination of toxic substances in workplace air - Part 163: Toluene diisocyanate - 英文版 |
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GBZ/T 300.162-2018 Determination of toxic substances in workplace air - Part 162: Benzoquinone - 英文版 |
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GBZ/T 300.161-2018 Determination of toxic substances in the workplace - Part 161: Tribromomethane - 英文版 |
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GBZ/T 300.128-2018 Determination of toxic substances in workplace air - Part 128: methacrylates - 英文版 |
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