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GB/T 20899.7-2022 Methods for chemical analysis of gold ores - Part 7: Determination of iron content - 英文版 |
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GB/T 7739.8-2022 Methods for chemical analysis of gold concentrates - Part 8: Determination of sulfur content - 英文版 |
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GB/T 7739.7-2022 Methods for chemical analysis of gold concentrates - Part 7: Determination of iron content - 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 2910.4-2022 Textiles - Quantitative chemical analysis - Part 4: Mixtures of certain protein fibers with certain other fibers (hypochlorite 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 5275.2-2022 Gas analysis - Preparation of calibration gas mixtures by dynamic method - Part 2: Piston pumps - 英文版 |
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GB/T 13747.26-2022 Methods for chemical analysis of zirconium and zirconium alloys - Part 26: Determination of alloys and impurity elements - Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 37211.3-2022 Methods for chemical analysis of germanium metal - Part 3: Determination of trace impurity elements - Glow discharge mass spectrometry - 英文版 |
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GB/T 14352.24-2022 Methods for chemical analysis of tungsten ore and molybdenum ore - Part 24: Determination of germanium content - Inductively coupled plasma mass spectrometry - 英文版 |
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GB/T 22366-2022 Sensory analysis - Methodology - General guidelines for the determination of smell, taste and flavor perception thresholds using the three-point forced choice method (3-AFC) - 英文版 |
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GB/T 15549-2022 Sensory analysis Methodology Introduction and training of evaluators in detection and identification of odors - 英文版 |
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GB/T 23825-2022 Determination of formaldehyde emission in wood-based panels and their products-Gas analysis method - 英文版 |
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GB/T 4734-2022 Chemical analysis methods of daily-use ceramic materials and products - 英文版 |
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GB/T 41769-2022 CdZnTe chemical analysis method - Determination of zinc and cadmium content - Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 13747.18-2022 Methods for chemical analysis of zirconium and zirconium alloys - Part 18: Determination of vanadium content - Benzoylphenyl hydroxylamine spectrophotometry and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 13747.10-2022 Methods for chemical analysis of zirconium and zirconium alloys - Part 10: Determination of tungsten content - Thiocyanate spectrophotometry and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 13747.9-2022 Methods for chemical analysis of zirconium and zirconium alloys - Part 9: Determination of magnesium content - flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 6150.17-2022 Methods for chemical analysis of tungsten concentrates - Part 17: Determination of antimony content - Atomic fluorescence spectrometry - 英文版 |
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GB/T 6150.13-2022 Methods for chemical analysis of tungsten concentrates - Part 13: Determination of arsenic content - Atomic fluorescence spectrometry and DDTC-Ag spectrophotometry - 英文版 |
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GB/T 6150.2-2022 Methods for chemical analysis of tungsten concentrates - Part 2: Determination of tin content - Potassium iodate titration and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 40396-2021 Test method for glass transition temperature of polymer matrix composites—Dynamic mechanical analysis（DMA） - 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 20899.6-2021 Methods for chemical analysis of gold ores—Part 6: Determination of zinc content - 英文版 |
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GB/T 20899.5-2021 Methods for chemical analysis of gold ores—Part 5: Determination of lead content - 英文版 |
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GB/T 20899.4-2021 Methods for chemical analysis of gold ores—Part 4: Determination of copper content - 英文版 |
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