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  •  China "GB" Standards List:
    • Standard  Code Standard English Title Standard Class Order
    GB/T 6609.22-2004 Chemical analysis methods and determination of physical performance of alumina--Sampling

    China National - GB Standards
    GB/T 6609.21-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of gallium trioxide content--Butyrhodamine B spectrophotometric method

    China National - GB Standards
    GB/T 6609.20-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of magnesia content--Flame atomic absorption spectrophotometric method

    China National - GB Standards
    GB/T 6609.19-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of lithia content--Flame atomic absorption spectrophotometric method

    China National - GB Standards
    GB/T 6609.18-2004 Chemical analysis methods and determination of physical performanceof alumina--Determination of sulfate content--N，N-dimethyl-P-phenylenediamine spectrophotometric method

    China National - GB Standards
    GB/T 6609.17-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of phosphorus pentoxide content--Molybdenum blue spectrophotometric method

    China National - GB Standards
    GB/T 6609.16-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of boron trioxide content--Curcumin spectrophotometric method

    China National - GB Standards
    GB/T 6609.15-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of chlorine content--Ferric thiocyanate photometric method

    China National - GB Standards
    GB/T 6609.14-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of fluorine content--Lanthanum-alizarincomplexone spectrophotometric method

    China National - GB Standards
    GB/T 6609.13-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of calcium oxide content--Flame atomic absorption spectrophotometric method

    China National - GB Standards
    GB/T 6609.12-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of zinc oxide content--Flame atomic absorption spectrophotometricmethod

    China National - GB Standards
    GB/T 6609.11-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of manganous oxide content--Flame atomic absorption spectrophotometric method

    China National - GB Standards
    GB/T 6609.10-2004 Chemical analysis methods and determination of physical performance of alumina--Determination of vanadic oxide content--N-benzoyl-N-phenylhydroxylamine extraction photometric method

    China National - GB Standards
    GB/T 19446-2004 Specification for electrical contact profiles

    China National - GB Standards
    GB/T 19445-2004 Products of precious metalsand their alloys--Packing，marking，transporting and storing

    China National - GB Standards
    GB/T 19444-2004 Oxygen precipitation characterization of silicon wafers by measurement of interstitial oxygen reduction

    China National - GB Standards
    GB/T 1819.9-2004 Methods for chemical analysis of tin concentrates--Determination of tungsten trioxide content--The thiocyanate spectrophotometric method

    China National - GB Standards
    GB/T 1819.8-2004 Methods for chemical analysis of tin concentrates--Determination of zinc content--Flame atomic absorption spectrometric method

    China National - GB Standards
    GB/T 1819.7-2004 Methods for chemical analysis of tin concentrates--Determination of bismuth content--Flame atomicabsorption spectrometric method

    China National - GB Standards
    GB/T 1819.6-2004 Methods for chemical analysis of tin concentrates--Determination of antimony content--The malachite green spectrometric method and the flame atomic absorption spectrometric method

    China National - GB Standards
    GB/T 1819.5-2004 Methods for chemical analysis of tin concentrates--Determination of arsenic content--The molybdoantimonyarsenate blue spectrophotometric method and the distillation-iodimetric titrimetric method

    China National - GB Standards
    GB/T 1819.4-2004 Methodsfor chemical analysis of tin concentrates--Determination of lead content--Flameatomic absorption spectrometric method and EDTA titrimetric method

    China National - GB Standards
    GB/T 1819.3-2004 Methods for chemical analysis of tin concentrates--Determination of iron content--The cerium sulfate titrimetric method

    China National - GB Standards
    GB/T 1819.2-2004 Methods for chemical analysis of tin concentrates--Determination of tin content--The potassium iodate titrimetric method

    China National - GB Standards
    GB/T 1819.13-2004 Methodsfor chemical analysis of tin concentrates--Determination of magnesium oxide andcalcium oxide contents--Flame atomic absorption spectrometric method

    China National - GB Standards
    GB/T 1819.12-2004 Methods for chemical analysis of tin concentrates--Determination of silicon dioxide content--The silicomolybdenum blue spectrophotometric method

    China National - GB Standards
    GB/T 1819.1-2004 Methods for chemical analysisof tin concentrates--Determination of water content--The weighing method

    China National - GB Standards
    GB/T 1819.11-2004 Methods for chemical analysis of tin concentrates--Determination of aluminum oxide content--The chromazuzol S spectrophotometric method

    China National - GB Standards
    GB/T 1819.10-2004 Methods for chemical analysis of tin concentrates--Determination of sulphur content--The high frequency infrared absorption method and the combustion potassium iodate titrimetric method

    China National - GB Standards
    GB/T 1422-2004 Iridium powder

    China National - GB Standards

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