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Standards GB - Chinese national standards - Page 5907
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 13400.1-1992
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Terms used in network planning techniques
WITHDRAWN published on 26.2.1992
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GB/T 13400.2-1992
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General rule for representation on network planning techniques
WITHDRAWN published on 26.2.1992
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GB/T 13400.3-1992
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General program of network planning techniques used in project management
WITHDRAWN published on 26.2.1992
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GB/T 13401-1992
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Steel plate butt-welding pipe fittings
WITHDRAWN published on 28.3.1992
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GB/T 13401-2005
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Steel plate butt-welding pipe fittings
WITHDRAWN published on 19.9.2005
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GB/T 13402-1992
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Large-diameter carbon steel pipe flanges
WITHDRAWN published on 28.3.1992
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GB/T 13402-2010
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Large diameter steel pipe flanges
WITHDRAWN published on 10.1.2011
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GB/T 13403-1992
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Gaskets for large-diameter cabon steel pipe flanges
WITHDRAWN published on 28.3.1992
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GB/T 13403-2008
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Gaskets for large-diameter steel pipe flanges
WITHDRAWN published on 25.8.2008
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GB/T 13404-1992
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Polytetrafluoroethylene envelope gaskets for pipe flanges
WITHDRAWN published on 28.3.1992
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