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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 41312.3-2023 Permeability testing methods for equipment used in chemical industry Part 3: Plastics and their lining equipment - 英文版 |
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GB/T 41312.2-2023 Permeability testing methods for chemical industry equipment Part 2: Fiber reinforced thermosetting plastic equipment - 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 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 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 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 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 20975.30-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 30：Determination of hydrogen content—Heating extraction-thermal conductivity method - 英文版 |
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GB/T 12690.15-2018 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides―Part 15: Determination of calcium content - 英文版 |
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GB/T 36592-2018 Methods for chemical analysis of rhodium—Determination of platinum, ruthenium, iridium, palladium, gold, silver, copper, iron, nickel, aluminum, lead, manganese, magnesium, tin, zinc, silicon contents—Inductively coupled plasma mass spectrometry - 英文版 |
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GB/T 12690.19-2018 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 19: Determination of arsenic and mercury contents - 英文版 |
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GB/T 12690.5-2017 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 5: Determination of cobalt,manganese,lead,nickel,copper,zinc,aluminum,chromium,magnesium,cadmium,vanadium and iron contents - 英文版 |
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GB/T 15076.13-2017 Methods for chemical analysis of tantalum and niobium—Part 13: Determination of nitrogen content—Inert gas fusion thermal conductivity method - 英文版 |
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GB/T 12690.18-2017 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides— Part 18: Determination of zirconium content - 英文版 |
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GB/T 12690.6-2017 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 6: Determination of iron content—Kslium thiocyanate, 1,10-Phenanthroline spectrophotometric method - 英文版 |
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GB/T 34326-2017 Surface chemical analysis—Depth profiling—Methods for ion beam alignment and the associated measurement of current or current density for depth profiling in AES and XPS - 英文版 |
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GB/T 4698.28-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 28：Determination of ruthenium content—Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 13747.21-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part 21：Determination of hydrogen content—Inert gas fusion-infrared absorption or thermal conductivity method - 英文版 |
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GB/T 1819.15-2017 Methods for chemical analysis of tin concentrates—Part 15：Determination of fluorine content—The ion-selective electrode method - 英文版 |
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GB/T 13747.19-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part19：Determination of titanium content—Diantipyrylmethane spectrophotometry and the inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 13747.22-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part 22：Determination of oxygen and nitrogen contents—Inert gas fusion-infrared absorption and thermal conductivity method - 英文版 |
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GB/T 13747.1-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part 1：Determination of tin content—Potassium iodate titration and phenylfluorone-polyethylene glycoloctyl phenyl ether spectrophotometry - 英文版 |
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GB/T 34499.2-2017 Methods for chemical analysis of iridium compounds—Part 2：Determination of silver, gold, platinum, palladium, rhodium, ruthenium, aluminium, copper, iron, nickel, lead, magnesium, manganese, tin, zinc, calcium, sodium, potassium, silicon content—Ind - 英文版 |
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GB/T 1819.12-2017 Methods for chemical analysis of tin concentrates—Part 12:Determination of silicon dioxide content—The silicomolybdenum blue spectrophotometry and sodium hydroxide titration - 英文版 |
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GB/T 1819.9-2017 Methods for chemical analysis of tin concentrates—Part 9：Determination of tungsten trioxide content—The thiocyanate spectrophotometric method - 英文版 |
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GB/T 34176-2017 Chemical analysis methods for determination of Fe2+ and Fe3+ in refractory products by the spectral photometric method with 1,10-phenanthroline - 英文版 |
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GB/T 33909-2017 Methods for chemical analysis of platinum—Determination of palladium，rhodium，iridium，ruthenium，gold，silver，aluminium，bismuth，chromium，copper，iron，nickel，lead，magnesium，manganese，tin，zinc，silicon content—Inductively co - 英文版 |
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GB/T 12690.3-2015 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 3: Determination of water content of rare earth oxides—Gravimetric method - 英文版 |
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GB/T 12690.2-2015 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 2: Determination of ignition loss content of rare earth oxides—Gravimetric method - 英文版 |
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