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Standards GB - Chinese national standards - Page 8530
Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
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GB/T 6608-1999
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Measuring thickness of the aluminium foil-Weighing method
WITHDRAWN published on 23.7.1999
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GB/T 6609.1-1986
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Methods for chemical analysis of aluminium oxide--The gravimetric method for the determination of moisture
WITHDRAWN published on 24.7.1986
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GB/T 6609.1-2004
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Chemical analysis methods and determination of physical performance of alumina—Determination of moisture-Gravimetric method
WITHDRAWN published on 5.2.2004
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GB/T 6609.10-1986
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Methods for the chemical analysis of aluminium oxide--The N-benzoyl-N-phenylhydroxylamine extraction photometric method for the determination of vanadic oxide content
WITHDRAWN published on 24.7.1986
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GB/T 6609.11-1986
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Methods for the chemical analysis of aluminium oxide--The atomic absorption spectrophotometric method for the determination of manganous oxide content
WITHDRAWN published on 24.7.1986
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GB/T 6609.12-1986
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Methods for chemical analysis of aluminium oxide--The atomic absorption spectrophotometric method for the determination of zinc oxide content
WITHDRAWN published on 24.7.1986
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GB/T 6609.12-2004
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Chemical analysis methods and determination of physical performance of alumina—Determination of zinc oxide content-Flame atomic absorption spectrophotometric method
WITHDRAWN published on 5.2.2004
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GB/T 6609.13-1986
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Methods for chemical analysis of aluminium oxide--The atomic absorption spectrophotometric method for the determination of calcium oxide content
WITHDRAWN published on 24.7.1986
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GB/T 6609.14-1986
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Methods for chemical analysis of aluminium oxide--The lanthanum-alizarincomplexone photometric method for the determination of fluorine content
WITHDRAWN published on 24.7.1986
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GB/T 6609.15-1986
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Methods for chemical analysis of aluminium oxide--The ferric thiocyanate photometric method for the determination of chlorine content
WITHDRAWN published on 24.7.1986
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