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GB/T 40281-2021 Determination of content of nonmetallic inclusions in steel—Extremum analytical method - 英文版 |
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GB/T 40280-2021 Plastics—Resins in the liquid state or as emulsions or dispersions—Determination of apparent viscosity using a single cylinder type rotational viscometer method - 英文版 |
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GB/T 20899.6-2021 Methods for chemical analysis of gold ores—Part 6: Determination of zinc content - 英文版 |
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GB/T 20899.5-2021 Methods for chemical analysis of gold ores—Part 5: Determination of lead content - 英文版 |
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GB/T 20899.4-2021 Methods for chemical analysis of gold ores—Part 4: Determination of copper content - 英文版 |
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GB/T 14949.2-2021 Manganese ores—Determination of nickel content—Flame atomic absorption spectrometric method - 英文版 |
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GB/T 14949.11-2021 Manganese ores—Determination of carbon content—Gravimetric method and infrared absorption method - 英文版 |
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GB/T 14637-2021 Determination of copper,iron and zinc in industrial circulating cooling water and scale—Atomic absorption spectrometric method - 英文版 |
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GB/T 14636-2021 Determination of calcium and magnesium in industrial circulating cooling water and scale—Atomic absorption spectrometric method - 英文版 |
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GB/T 7739.6-2021 Methods for chemical analysis of gold concentrates—Part 6: Determination of zinc content - 英文版 |
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GB/T 7739.5-2021 Methods for chemical analysis of gold concentrates—Part 5: Determination of lead content - 英文版 |
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GB/T 7731.5-2021 Ferrotungsten—Determination of silicon content—Silicomolybdenum blue spectrophotometric method - 英文版 |
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GB/T 7731.4-2021 Ferrotungsten—Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometric method - 英文版 |
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GB/T 7731.1-2021 Ferrotungsten—Determination of tungsten content—Cinchonine gravimetric method and ammonium nitrate gravimetric method - 英文版 |
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GB/T 7731.10-2021 Ferrotungsten—Determination of carbon content—Infrared absorption method - 英文版 |
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GB/T 6324.11-2021 Test method of organic chemical products—Part 11：Determination of trace arsenic in liquid products—Atomic fluorescence spectrometric method - 英文版 |
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GB/T 6017-2021 Determination of purity and hydrocarbon impurities of butadiene for industrial use—Gas chromatographic method - 英文版 |
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GB/T 6015-2021 Determination of trace dimer and residual extraction agent of butadiene for industrial use—Gas chromatographic method - 英文版 |
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GB/T 5687.13-2021 Ferrochromium—Determination of chromium, silicon, manganese, titanium, vanadium, iron contents—Wavelength dispersive X-ray fluorescence spectrometry (fused cast bead method) - 英文版 |
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GB/T 5211.14-2021 General methods of test for pigments and extenders—Part 14: Determination of residue on sieve—Mechanical flushing procedure - 英文版 |
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GB/T 1425-2021 Determination of melting temperature range for precious metals and their alloys—Testing method of thermal analysis - 英文版 |
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GB/T 614-2021 Chemical reagent—General method for the determination of refractive index - 英文版 |
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GB/T 611-2021 Chemical reagent—General method for the determination of refractive index - 英文版 |
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GB/T 223.91-2021 Iron, steel and alloy—Determination of copper—2,2’-Biquinoline spectrophotometric method - 英文版 |
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GB/T 223.90-2021 Iron, steel and alloy—Determination of silicon content—Inductively coupled plasma atomic emission spectrometric method - 英文版 |
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GB/T 40374-2021 Hardmetals—Determination of lead and cadmium content—Flame atomic absorption spectrometric method and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 16840.8-2021 Technical Determination methods for electrical fire evidence—Part 8: Method of thermal analysis - 英文版 |
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GB/T 16840.7-2021 Technical Determination methods for electrical fire evidence—Part 7：Component analytic method of energy dispersive spectrometry - 英文版 |
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GB/T 16840.4-2021 Technical Determination methods for electrical fire evidence—Part 4: Metallographic analysis method - 英文版 |
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GB/T 16840.3-2021 Technical Determination methods for electrical fire evidence—Part 3: Auger electron spectroscopy component analytic method - 英文版 |
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