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GB/T 13747.19-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part19：Determination of titanium content—Diantipyrylmethane spectrophotometry and the inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 13747.1-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part 1：Determination of tin content—Potassium iodate titration and phenylfluorone-polyethylene glycoloctyl phenyl ether spectrophotometry - 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 4324.26-2012 Methods for chemical analysis of tungsten - Part 26: Determination of nitrogen content - Pulse heating inert gas fusion-thermal conductive method and the Nessler reagent spectrophotometry - 英文版 |
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GB/T 12689.1-2010 Methods for chemical analysis of zinc and zinc alloys - Part 1: Determination of aluminum content - Chromazurol S-polyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometry, Chromeazurol S spectrophotometric method and EDTA titrimetry - 英文版 |
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GB/T 22907-2008 The photometry and goniophotometry of luminaires - 英文版 |
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GB/T 9468-2008 General requirements for The photometry and goniophotometry of luminaries - 英文版 |
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GB/T 6150.13-2008 Methods for chemical analysis of tungsten concentrates - Determination of arsenic content - Hydride reduction atomic absorption spectrometry and the silver diethyldithiocarbamate(DDTC-Ag) photometry - 英文版 |
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GB/T 6150.12-2008 Methods for chemical analysis of tungsten concentrates－Determination of silicon dioxide content - The silicomolybdenum blue spectrophotometry and the gravimetry - 英文版 |
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GB/T 9086-2007 The white standard plate for colorimetry and photometry - 英文版 |
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GB/T 9721-2006 Chemical reagent - General rules for the molecular absorption spectrophotometry (ultraviolet and visible) - 英文版 |
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GB/T 13580.13-1992 Determination of calcium and magnesium in the wet precipitation--Atomic absorption spectrophotometry - 英文版 |
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GB/T 13580.12-1992 Determination of sodium andpotassium in the wet precipitation--Atomic absorption spectrophotometry - 英文版 |
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GB/T 12374-1990 Standard method for examination of nitrate in air of residential areas--Reduction of the cadmium column--Spectrophotometry of N-(1-naphthyl) ethylene diaminehydrochloride - 英文版 |
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