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GB/T 5686.5-2023 Ferromanganese, manganese-silicon alloy, ferromanganese nitride and metallic manganese Determination of carbon content Infrared absorption method, gas volume method, gravimetric method and coulometric method - 英文版 |
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GB/T 43358-2023 Rare earth ores and rare earth products Determination of total alpha and total beta radioactivity Thick source 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 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 6730.84-2023 Iron ore - Determination of total rare earth content - Inductively coupled plasma atomic emission spectrometry - 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 35306-2023 Determination of carbon and oxygen content in silicon single crystal Low-temperature Fourier transform infrared spectroscopy - 英文版 |
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GB/T 26416.9-2023 Methods for chemical analysis of rare earth iron alloys - Part 9: Determination of phosphorus content - Bismuth phosphomolybdenum blue spectrophotometric method - 英文版 |
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GB/T 26416.8-2023 Methods for chemical analysis of rare earth iron alloys - Part 8: Determination of silicon content - Photometric method - 英文版 |
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GB/T 26416.7-2023 Chemical analysis methods of rare earth iron alloys - Part 7: Determination of carbon and sulfur content - High frequency-infrared absorption method - 英文版 |
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GB/T 26416.6-2023 Methods for chemical analysis of rare earth iron alloys - Part 6: Determination of molybdenum, tungsten, titanium content - Inductively coupled plasma emission spectrometry - 英文版 |
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GB/T 41366-2022 Livestock and poultry meat quality detection Determination of moisture, protein and fat content Near infrared method - 英文版 |
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GB/T 26416.5-2022 Methods for chemical analysis of rare earth iron alloys - Part 5: Determination of oxygen content - Pulse-infrared absorption method - 英文版 |
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GB/T 26416.4-2022 Methods for chemical analysis of rare earth iron alloys - Part 4: Determination of iron content - Potassium dichromate titration method - 英文版 |
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GB/T 26416.3-2022 Chemical analysis methods of rare earth ferroalloys - Part 3: Determination of calcium, magnesium, aluminum, nickel, manganese content - Inductively coupled plasma emission spectrometry - 英文版 |
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GB/T 26416.2-2022 Methods for chemical analysis of rare earth ferroalloys - Part 2: Determination of rare earth impurity content - Inductively coupled plasma emission spectrometry - 英文版 |
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GB/T 26416.1-2022 Chemical Analysis Methods of Rare Earth Ferroalloys Part 1: Determination of Total Rare Earth - 英文版 |
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GB/T 5686.7-2022 Ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese Determination of sulfur content Infrared absorption method and combustion neutralization titration method - 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 42275-2022 Cemented carbide - Determination of total carbon content - High frequency combustion infrared absorption method/thermal conductivity method - 英文版 |
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GB/T 6730.61-2022 Iron ore - Determination of carbon and sulfur content - High frequency combustion infrared absorption method - 英文版 |
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GB/T 14949.11-2021 Manganese ores—Determination of carbon content—Gravimetric method and infrared absorption method - 英文版 |
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GB/T 7731.10-2021 Ferrotungsten—Determination of carbon content—Infrared absorption method - 英文版 |
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GB/T 14352.20-2021 Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 20：Determination of niobium，tantalum，zirconium，hafnium and 15 rare earth elements content -- Inductively coupled plasma mass spectrometry - 英文版 |
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GB/T 6730.25-2021 Iron ores—Determination of total rare earth contents—Oxalate gravimetric method - 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 23801-2021 Determination of fatty acid methyl ester (FAME) content in middle distillates—Infrared spectrometry - 英文版 |
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GB/T 40566-2021 Granular polysilicon produced by fluidized bed method—Determination of hydrogen—Pulse heating inert gas fusion infrared absorption method - 英文版 |
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GB/T 40561-2021 Photovoltaic silicon material—Determination of oxygen—Pulse heating inert gas fusion infrared absorption method - 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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