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GB/T 39144-2020 Test method for magnesium content in gallium nitride materials—Secondary ion mass spectrometry - 英文版 |
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GB/T 39145-2020 Test method for the content of surface metal elements on silicon wafers—Inductively coupled plasma mass spectrometry - 英文版 |
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GB/T 37849-2019 Method of performance testing for liquid chromatography tandem time of flight mass spectrometry - 英文版 |
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GB/T 37049-2018 Test method for the content of metal impurity in electronic grade polysilicon—Inductively coupled-plasma mass spectrometry method - 英文版 |
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GB/T 35905-2018 Test methods for biomass—Determination of total solids in biomass - 英文版 |
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GB/T 34826-2017 Method of performance testing for quadrupole inductively coupled plasma mass spectrometer - 英文版 |
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GB/T 13477.19-2017 Test method for building sealants—Part 19：Determination of change in mass and volume - 英文版 |
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GB/T 35410-2017 Method of performance testing for liquid chromatography-tandem quadrupole masss spectrometry - 英文版 |
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GB/T 22638.10-2016 Test methods for aluminium and aluminium alloy foils—Part 10：Determination of mass per unit area (surface density) of coatings - 英文版 |
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GB/T 32788.6-2016 Test method for properties of prepreg—Part 6: Determination of mass per unit area - 英文版 |
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GB/T 32651-2016 Test method for measuring trace elements in photovoltaic-grade silicon by high-mass resolution glow discharge mass spectrometry - 英文版 |
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GB/T 32281-2015 Test method for measuring oxygen, carbon, boron and phosphorus in solar silicon wafers and feedstock by secondary ion mass spectrometry - 英文版 |
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GB/T 32264-2015 Method of performance testing for gas chromatography-single quadrupole mass pectrometry - 英文版 |
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GB/T 32210-2015 Technical requirements and test methods for portable gas chromatography-mass spectrometer - 英文版 |
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GB/T 31854-2015 Test method for measuring metallic impurities content in silicon materials used for photovoltaic applications by inductively coupled plasma mass spectrometry - 英文版 |
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GB/T 31729-2015 Test method for mass per unit area of plastic film - 英文版 |
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GB/T 29852-2013 Test method for measuring Phosphorus, Arsenic and Antimony in silicon materials used for photovoltaic applications by secondary ion mass spectrometry - 英文版 |
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GB/T 29851-2013 Test method for measuring Boron and Aulminium in silicon materials used for photovoltaic applications by secondary ion mass spectrometry - 英文版 |
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GB/T 29849-2013 Test method for measuring surface metallic contamination of silicon materials used for photovoltaic applications by inductively coupled plasma mass spectrometry - 英文版 |
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GB/T 50266-2013 Standard for test methods of engineering rock mass - 英文版 |
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GB/T 17282-2012 Test method for estimation of mean relative molecular mass of petroleum oils from viscosity measurements - 英文版 |
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GB/T 25749.6-2012 Safety of machinery - Evaluation of the emission of airborne hazardous substances - Part 6: Test bench method for the measurement of the separation efficiency by mass of air cleaning systems with ducted outlet - 英文版 |
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GB/T 25749.5-2012 Safety of machinery - Evaluation of the emission of airborne hazardous substances - Part 5: Test bench method for the measurement of the separation efficiency by mass of air cleaning systems with unducted outlet - 英文版 |
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GB/T 27762-2011 Standard Test method for mass scale calibration of thermogravimetric analyzers - 英文版 |
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GB/T 24575-2009 Test method for measuring surface sodium,aluminum,potassium,and iron on silicon and epi substrates by secondary ion mass spectrometry - 英文版 |
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GB/T 24582-2009 Test method for measuring surface metal contamination of polycrystalline silicon by acid extraction-inductively coupled plasma mass spectrometry - 英文版 |
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GB/T 24580-2009 Test method for measuring boron contamination in heavily doped n-type silicon substrates by secondary ion mass spectrometry - 英文版 |
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GB/T 24218.1-2009 Textiles - Test methods for nonwovens - Part 1: Determination of mass per unit area - 英文版 |
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GB/T 13762-2009 Geosynthetics - Test method for the determination of mass per unit area of geotextiles and geotextile-related products - 英文版 |
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GB/T 22638.10-2008 Test methods for aluminium and aluminium alloy foils - Part 10: Determination of mass per unit area (surface density) of coatings - 英文版 |
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