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Standards GB - Chinese national standards - Page 8633
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 7716-2014
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Propylene for polymerization—Specification
WITHDRAWN published on 8.7.2014
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GB/T 7717.1-1994
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Acrylonitrile for industrial use—Specifications
WITHDRAWN published on 4.7.1994
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GB/T 7717.1-2008
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Acrylonitrile for industrial use—Part 1: Specification
WITHDRAWN published on 19.6.2008
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GB 7717.10-1987
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WITHDRAWN published on 1.1.1987
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GB/T 7717.10-1994
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Acrylonitrile for industrial use—Determination of content of peroxides—Spectrophotometric method
WITHDRAWN published on 4.7.1994
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GB 7717.11-1987
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WITHDRAWN published on 1.1.1987
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GB/T 7717.11-1994
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Acrylonitrile for industrial use—Determination of content of iron—Spectrophotometric method
WITHDRAWN published on 4.7.1994
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GB 7717.12-1987
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WITHDRAWN published on 1.1.1987
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GB/T 7717.12-1994
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Acrylonitrile for industrial use—Determination of content of acetonitrile, acetone and acrolein—Gas chromatographic method
WITHDRAWN published on 4.7.1994
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GB/T 7717.12-2008
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Acrylonitrile for industrial use—Part 12:Determination of purity and impurities—Gas chromatographic method
WITHDRAWN published on 19.6.2008
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