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GB/T 8151.22-2020 Methods for chemical analysis of zinc concentrates—Part 22: Determination of zinc, copper, lead,iron,aluminium ,calcium and magnesium contents—Wavelength dispersive X-ray fluorescence spectrometric method - 英文版 |
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GB/T 8151.23-2020 Methods for chemical analysis of zinc concentrates—Part 23: Determination of mercury content—Solid sampling and direct mercury analysis method - 英文版 |
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GB/T 20975.37-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 37:Determination of niobium content - 英文版 |
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GB/T 20975.4-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content - 英文版 |
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GB/T 20975.5-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 5：Determination of silicon content - 英文版 |
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GB/T 20975.7-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 7:Determination of manganese content - 英文版 |
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GB/T 20975.9-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 9:Determination of lithium content—Flame atomic absorption spectrometry - 英文版 |
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GB/T 20975.10-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 10：Determination of tin content - 英文版 |
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GB/T 20975.12-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 12: Determination of titanium content - 英文版 |
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GB/T 20975.14-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 14：Determination of nickel content - 英文版 |
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GB/T 20975.16-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 16：Determination of magnesium content - 英文版 |
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GB/T 20975.18-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 18:Determination of chromium content - 英文版 |
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GB/T 20975.22-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 22:Determination of beryllium content - 英文版 |
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GB/T 20975.24-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 24：Determination of total rare earth content - 英文版 |
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GB/T 20975.25-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 25：Determination of elements content—Inductively coupled plasma atomic emission spectrometric method - 英文版 |
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GB/T 20975.35-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 35:Determination of tungsten content—Thiocyanate spectrophotometric method - 英文版 |
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GB/T 20975.36-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 36:Determination of silver content—Flame atomic absorption spectrometry - 英文版 |
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GB/T 38794-2020 Chemical safety in furniture—Determination of formaldehyde emission - 英文版 |
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GB/T 38744-2020 Methods for chemical analysis of synergistic catalysis elements in automotive exhaust catalysis－Determination of cerium, lanthanum, praseodymium, neodymium ,barium and zirconium contents－Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 3286.10-2020 Methods for chemical analysis of limestone and dolornite一Part 10:Determination of titanium dioxide content一Diantipyrylmethane spectrophotometric method - 英文版 |
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GB/T 6324.10-2020 Test method of organic chemical products—Part 10: Determination of trace sulfur in organic liquid products—Ultraviolet fluorescence method - 英文版 |
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GB/T 4698.10-2020 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 10：Determination of chromium content—Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry（with vanadium） - 英文版 |
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GB/T 38513-2020 Methods for chemical analysis of niobium hafnium alloys—Determination of hafnium,titanium,zirconium,tungsten,tantalum contents—Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 38506-2020 Determination of biochemical parameters in animal cell culture process - 英文版 |
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GB/T 39527-2020 Determination of calcium, aluminium and silicon in the solid surface materials—Method of chemical analysis - 英文版 |
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GB/T 15076.6-2020 Methods for chemical analysis of tantalum and niobium--Part 6: Determination of silicon content--Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 15076.4-2020 Methods for chemical analysis of tantalum and niobium--Part 4: Determination of iron content--1, 10-Phenanthroline spectrophotometry - 英文版 |
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GB/T 15076.11-2020 Methods for chemical analysis of tantalum and niobium--Part 11: Determination of arsenic, antimony, lead, tin and bismuth contents in niobium--Direct current arc atomic emission spectrometry - 英文版 |
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GB/T 14849.3-2020 Methods for chemical analysis of silicon metal--Part 3: Determination of calcium content - 英文版 |
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GB/T 14849.1-2020 Methods for chemical analysis of silicon metal--Part 1: Determination of iron content - 英文版 |
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