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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 16632-2019 Determination of scale inhibition performance of water treatment chemicals—Calcium carbonate precipitation method - 英文版 |
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GB/T 15456-2019 Determination of the chemical oxygen demand in industrial circulating cooling water—Permanganate index method - 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 7739.14-2019 Methods for chemical analysis of gold concentrates—Part 14: Determination of thallium content—Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry - 英文版 |
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GB/T 37560-2019 Flame retardant chemicals—Determination of melamine and cyanuric acid in melamine cyanurate - 英文版 |
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GB/T 37498-2019 Rubber,raw natural—Determination of the gel content of technically specified rubber (TSR) - 英文版 |
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GB/T 23524-2019 Method for chemical analysis of petrochemical spent platinum catalyst—Determination of platinum—Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 20975.31-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 31：Determination of phosphorus content—Molybdenum blue spectrophotometry - 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 20975.29-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 29:Determination of molybdenum content—Thiocyanate spectrophotometry - 英文版 |
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GB/T 20975.28-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 28:Determination of cobalt content—Flame atomic absorption spectrometry - 英文版 |
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GB/T 13747.5-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 5：Determination of aluminium content—Chronic azurol-S-tetradrcylpyridine chloride spectrophotometry - 英文版 |
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GB/T 7739.13-2019 Methods for chemical analysis of gold concentrates—Part 13: Determination of lead， zinc， bismuth， cadmium， chromium， arsenic and mercury contents—Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 4698.21-2019 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 21: Determination of manganese, chromium, nickel, aluminum, molybdenum, tin, vanadium, yttrium, copper and zirconium content—Atomic emission spectrometry - 英文版 |
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GB/T 4698.17-2019 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 17:Determination of magnesium content—Flame atomic absorption spectrometry - 英文版 |
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GB/T 223.88-2019 Iron, steel and alloy—Determination of calcium and magnesium contents—Inductively coupled plasma atomic emission spectrometric method - 英文版 |
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GB/T 37428-2019 Methods of determination and calculation of thermal balance in electric arc furnace - 英文版 |
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GB/T 37765-2019 Qualitative determination methods of asbestos in electrical and electronic products - 英文版 |
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GB/T 37760-2019 Determination of perfluorooctanoic acid and perfluorooctane sulfonic acid in electronic and electrical products—Ultra high performance liquid chromatographic method with tandem mass spectrometry - 英文版 |
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GB/T 37757-2019 Determination of emission rate of volatile organic compounds from materials and components used in electrical and electronic products—Emission test chamber-gas chromatography mass spectrometry - 英文版 |
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GB/T 37673-2019 ：Determination of silicon,aluminum,iron,calcium,magnesium,sodium,potassium,phosphorus,titanium,manganese,strontium and barium in coal ash—X-ray fluorescence spectrometric method - 英文版 |
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GB/T 37667-2019 Determination of iron,calcium,magnesium,potassium,sodium,manganese,phosphorus,aluminum,titanium,strontium and barium in coal ash—Inductively coupled plasma-atomic emission spectrometry - 英文版 |
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GB/T 15076.3-2019 Methods for chemical analysis of tantalum and niobium—Part 3：Determination of copper content—Flame atomic absorption spectrometry - 英文版 |
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GB/T 13747.6-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 6：Determination of copper content—2,9-Dimethyl-1,10-phenanthroline spectrophotometry - 英文版 |
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GB/T 11026.10-2019 Electrical insulating materials—Thermal endurance properties—Part 10: Accelerated determination of relative thermal endurance using analytical test methods(RTEA)—Instructions for calculation based on activation energy - 英文版 |
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GB/T 37243-2019 Determination method of external safety distance for hazardous chemicals production units and storage installations - 英文版 |
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GB/T 37512-2019 Inspection of grain and oils—Determination of the difference between actual and theoretical content of triacylglycerols with ECN 42 - 英文版 |
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GB/T 37511-2019 Inspection of grain and oils—Doughs rheological properties determination of wheat flour—Mixolab test - 英文版 |
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GB/T 14615-2019 Inspection of grain and oils—Doughs rheological properties determination of wheat flour—Extensograph test - 英文版 |
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