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GB/T 38265.2-2019 Test methods for soft soldering fluxes—Part 2: Determination of non-volatile matter—Ebulliometric method - 英文版 |
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GB/T 38265.1-2019 Test methods for soft soldering fluxes—Part 1:Determination of non-volatile matter—Gravimetric method - 英文版 |
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GB/T 20899.3-2019 Methods for chemical analysis of gold ores—Part 3:Determination of arsenic content - 英文版 |
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GB/T 20899.2-2019 Methods for chemical analysis of gold ores一Part 2:Determination of silver content 一Flame atomic absorption spectrometric method - 英文版 |
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GB/T 14506.33-2019 Methods for chemical analysis of silicate rocks—Part 33: Determination of arsenic, stibium, bismuth and mercury elements content—Hydride generation atomic fluorescence spectrometry - 英文版 |
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GB/T 20899.1-2019 Methods for chemical analysis of gold ores—Part 1:Determination of gold content - 英文版 |
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GB/T 15076.2-2019 Methods for chemical analysis of tantalum and niobium—Part 2:Determination of niobium content in tantalum—Inductively coupled plasma atomic emission spectrometry and stratography gravimetry - 英文版 |
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GB/T 15076.10-2019 Methods for chemical analysis of tantalum and niobium—Part 10:Determination of iron,nickel,chromium,titanium, zirconium,aluminum and manganese contents in niobium—Direct current arc atomic emission spectrometry - 英文版 |
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GB/T 13747.7-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 7：Determination of manganese content—Patassium periodate spectrometry and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 13747.2-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 2：Determination of iron content—1,10-phenanthroline spectrophotometry and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 13747.12-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 12：Determination of silicon content—Molybdenum blue spectrophotometry - 英文版 |
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GB/T 8647.11-2019 Methods for chemical analysis of nickel－Part 11：Determination of magnesium，aluminum，manganese，cobalt，copper，zinc，cadmium，tin，antimony，lead，bismuth contents－Inductively coupled plasma mass spectrometry - 英文版 |
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GB/T 7739.3-2019 Methods for chemical analysis of gold concerntrates—Part 3:Determination of arsenic content - 英文版 |
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GB/T 7739.2-2019 Methods for chemical analysis of gold concentrates—Part 2:Determination of silver content—Flame atomic absorption spectrometric method - 英文版 |
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GB/T 7739.1-2019 Methods for chemical analysis of gold concerntrates—Part 1：Determination of gold and silver contents - 英文版 |
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GB/T 38265.1-2019 Test methods for soft soldering fluxes—Part 1:Determination of non-volatile matter—Gravimetric method - 英文版 |
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GB/T 20899.3-2019 Methods for chemical analysis of gold ores—Part 3:Determination of arsenic content - 英文版 |
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GB/T 20899.2-2019 Methods for chemical analysis of gold ores一Part 2:Determination of silver content 一Flame atomic absorption spectrometric method - 英文版 |
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GB/T 14506.33-2019 Methods for chemical analysis of silicate rocks—Part 33: Determination of arsenic, stibium, bismuth and mercury elements content—Hydride generation atomic fluorescence spectrometry - 英文版 |
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GB/T 37983-2019 Testing methods of X-ray diffraction for determining the orientation of crystal materials by rotation - 英文版 |
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GB/T 37977.23-2019 Electrostatics—Part 2-3：Methods of test for determining the resistance and resistivity of solid planar materials used to avoid electrostatic charge accumulation - 英文版 |
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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 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 32671.2-2019 Colloidal systems—Methods for zeta-potential determination—Part 2:Optical methods - 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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