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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 39100-2020 Determination of antioxidant activity for polypeptides—DPPH and ABTS methods - 英文版 |
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GB/T 39101-2020 Determination of antimicrobial activity for polypeptides—Inhibition zone method - 英文版 |
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GB/T 11060.8-2020 Natural gas—Determination of sulfur compounds—Part 8：Determination of total sulfur content by ultraviolet fluorescence method - 英文版 |
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GB/T 39059-2020 Determination of harmful substance emissions from synthetic sports surfaces—Environmental chambers 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 38978-2020 Refractory products—Determination of stress-strain (three-point bending method） - 英文版 |
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GB/T 4802.4-2020 Textiles—Determination of the fabric propensity to surface pilling, fuzzing or matting—Part 4: Random tumble pilling method - 英文版 |
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GB/T 24328.12-2020 Tissue paper and tissue products—Part 12: Determination of optical properties—Determination of opacity—Diffuse reflectance method - 英文版 |
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GB/T 24328.6-2020 Tissue paper and tissue products—Part 6: Determination of water-absorption time and water-absorption capacity—Basket-immersion test method - 英文版 |
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GB/T 223.37-2020 Iron, steel and alloy—Determination of nitrogen content—Indophenol blue spectrophotometric method after distillation separation - 英文版 |
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GB/T 38949-2020 Determination of pore size for porous membranes—Standard particle method - 英文版 |
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GB/T 38902-2020 Determination of hollow fiber membrane cross-section dimensions—Image analysis method - 英文版 |
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GB/T 38783-2020 Method of coating thickness determination for precious metal composites by scanning electron microscope - 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 17360-2020 Microbeam analysis—Method of quantitative determination for low contents of silicon and manganese in steels using electron probe microanalyzer - 英文版 |
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