“The methods for chem ” 中國GB標準檢索結果

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	GB/T 18115.6-2023 （中英文版） 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
	GB/T 41312.3-2023 （中英文版） Permeability testing methods for equipment used in chemical industry Part 3: Plastics and their lining equipment
	GB/T 41312.2-2023 （中英文版） Permeability testing methods for chemical industry equipment Part 2: Fiber reinforced thermosetting plastic equipment
	GB/T 18882.1-2023 （中英文版） 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
	GB/T 12690.1-2022 （中英文版） 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
	GB/T 12690.8-2021 （中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 8:Determination of sodium content
	GB/T 12690.4-2021 （中英文版） 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
	GB/T 12690.7-2021 （中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 7: Determination of silicon content
	GB/T 20975.30-2019 （中英文版） Methods for chemical analysis of aluminium and aluminium alloys—Part 30：Determination of hydrogen content—Heating extraction-thermal conductivity method
	GB/T 12690.15-2018 （中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides―Part 15: Determination of calcium content
	GB/T 36592-2018 （中英文版） 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
	GB/T 12690.19-2018 （中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 19: Determination of arsenic and mercury contents
	GB/T 12690.5-2017 （中英文版） 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
	GB/T 15076.13-2017 （中英文版） Methods for chemical analysis of tantalum and niobium—Part 13: Determination of nitrogen content—Inert gas fusion thermal conductivity method
	GB/T 12690.18-2017 （中英文版） Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides— Part 18: Determination of zirconium content
	GB/T 12690.6-2017 （中英文版） 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
	GB/T 34326-2017 （中英文版） 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
	GB/T 4698.28-2017 （中英文版） Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 28：Determination of ruthenium content—Inductively coupled plasma atomic emission spectrometry
	GB/T 13747.21-2017 （中英文版） Methods for chemical analysis of zirconium and zirconium alloys—Part 21：Determination of hydrogen content—Inert gas fusion-infrared absorption or thermal conductivity method
	GB/T 1819.15-2017 （中英文版） Methods for chemical analysis of tin concentrates—Part 15：Determination of fluorine content—The ion-selective electrode method
	GB/T 13747.19-2017 （中英文版） Methods for chemical analysis of zirconium and zirconium alloys—Part19：Determination of titanium content—Diantipyrylmethane spectrophotometry and the inductively coupled plasma atomic emission spectrometry
	GB/T 13747.22-2017 （中英文版） 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
	GB/T 13747.1-2017 （中英文版） 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
	GB/T 34499.2-2017 （中英文版） 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
	GB/T 1819.12-2017 （中英文版） Methods for chemical analysis of tin concentrates—Part 12:Determination of silicon dioxide content—The silicomolybdenum blue spectrophotometry and sodium hydroxide titration
	GB/T 1819.9-2017 （中英文版） Methods for chemical analysis of tin concentrates—Part 9：Determination of tungsten trioxide content—The thiocyanate spectrophotometric method
	GB/T 34176-2017 （中英文版） Chemical analysis methods for determination of Fe2+ and Fe3+ in refractory products by the spectral photometric method with 1,10-phenanthroline
	GB/T 33909-2017 （中英文版） 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
	GB/T 12690.3-2015 （中英文版） 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
	GB/T 12690.2-2015 （中英文版） 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

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