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GB/T 4698.25-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 25：Determination of chlorine content—Silver chlorin spectrophotometry - 英文版 |
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GB/T 4698.12-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 12：Determination of vanadium content—Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 13747.20-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part 20：Determination of hafnium content—Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 34499.2-2017 Methods for chemical analysis of iridium compounds—Part 2：Determination of silver, gold, platinum, palladium, rhodium, ruthenium, aluminium, copper, iron, nickel, lead, magnesium, manganese, tin, zinc, calcium, sodium, potassium, silicon content—Ind - 英文版 |
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GB/T 1819.16-2017 Methods for chemical analysis of tin concentrats—Part 16:Determination of siliver content—Flame atomic absorption spectrometry - 英文版 |
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GB/T 34499.1-2017 Method for chemical analysis of iridium compounds—Part 1: Determination of iridium content—Electricity titration using ferrous sulfate - 英文版 |
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GB/T 1819.12-2017 Methods for chemical analysis of tin concentrates—Part 12:Determination of silicon dioxide content—The silicomolybdenum blue spectrophotometry and sodium hydroxide titration - 英文版 |
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GB/T 1819.9-2017 Methods for chemical analysis of tin concentrates—Part 9：Determination of tungsten trioxide content—The thiocyanate spectrophotometric method - 英文版 |
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GB/T 1819.14-2017 Methods for chemical analysis of tin concentrates—Part 14：Determination of copper content—Flame atomic absorption spectrometry - 英文版 |
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GB/T 3884.19-2017 Methods for chemical analysis of copper concentrates—Part 19: Determination of thallium content—Inductively coupled plasma mass spectrometry - 英文版 |
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GB/T 34176-2017 Chemical analysis methods for determination of Fe2+ and Fe3+ in refractory products by the spectral photometric method with 1,10-phenanthroline - 英文版 |
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GB/T 16781.1-2017 Natural gas—Determination of mercury—Part 1: Sampling of mercury by chemisorption on iodine - 英文版 |
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GB/T 33909-2017 Methods for chemical analysis of platinum—Determination of palladium，rhodium，iridium，ruthenium，gold，silver，aluminium，bismuth，chromium，copper，iron，nickel，lead，magnesium，manganese，tin，zinc，silicon content—Inductively co - 英文版 |
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GB/T 33913.1-2017 Method for chemical analysis of tris(triphenylphosphine) rhodium(I) chloride—Part 1：The determination of rhodium content—Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 33913.2-2017 Method for chemical analysis of tris(triphenylphosphine) rhodium(I) chloride—Part 2：The determination of lead，iron，copper，palladium，platinum，aluminium，nickel，magnesium，zinc content—Inductively coupled plasma atomic emission spectrome - 英文版 |
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GB/T 33948.2-2017 Method for chemical analysis of copper-steel composite metal—Part 2：Determination of zinc content—Na2EDTA titration method - 英文版 |
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GB/T 33948.1-2017 Method for chemical analysis of copper-steel composite metal—Part 1：Determination of copper content—Iodine titration method - 英文版 |
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GB/T 4698.4-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 4：Determination of manganese content—Potassium periodate spectrophotometry and inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 35496-2017 Chemical reagent—General method for the determination of nitrate - 英文版 |
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GB/T 34500.5-2017 Chemical analysis methods for rare earth residue and waste water—Part 5：Determination of ammonia nitrogen content - 英文版 |
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GB/T 33410-2016 Determination of the activity of protease K in biochemical reagents - 英文版 |
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GB/T 33412-2016 Determination of hydroxycitric acid in biochemical products—HPLC method - 英文版 |
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GB/T 6324.9-2016 Test method of organic chemical products—Part 9: Determination of chloride - 英文版 |
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GB/T 33392-2016 Leather and fur—Chemical tests—Determination of 4-aminoazobenzene derived from azo colorants - 英文版 |
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GB/T 7686-2016 General method for determination of arsenic content of chemical products - 英文版 |
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GB/T 6285-2016 Determination of trace oxygen in gases—Electrochemical method - 英文版 |
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GB/T 33318-2016 Gas analysis—Determination of sulfide—Gas chromatography with sulfur chemiluminescence - 英文版 |
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GB/T 33285-2016 Leather and fur—Chemical tests—Determination of nonylphenol and nonylphenol ethoxylates - 英文版 |
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GB/T 33086-2016 Water treatment chemical—Determination of arsenic and mercury—Atomic fluorescence spectrometry - 英文版 |
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GB/T 20899.12-2016 Methods for chemical analysis of gold ores—Part 12: Determination of arsenic, mercury, cadmium, lead and bismuth contents—Atomic fluorescence spectrometric method - 英文版 |
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