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Standards GB - Chinese national standards - Page 7953
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 50309-1992
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Standard for checking and evaluating the quality of brickwork in industrial furnaces
WITHDRAWN published on 7.1.1992
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GB 50309-2007
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Code for quality inspection and acceptance of industrial furnaces building
WITHDRAWN published on 23.10.2007
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GB 5031-1985
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Rules and methods of performance test for construction tower cranes
WITHDRAWN published on 1.1.1985
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GB/T 5031-1994
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Performance test for tower cranes
WITHDRAWN published on 18.10.1994
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GB/T 5031-2008
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Tower crane
WITHDRAWN published on 7.8.2008
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GB/T 50311-2000
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Code for engineering design of generic cabling system for building and campus
WITHDRAWN published on 28.2.2000
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GB 50311-2007
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Code for engineering design of generic cabling system
WITHDRAWN published on 6.4.2007
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GB/T 50312-2000
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Code for engineering acceptance of generic cabling system for building and campus
WITHDRAWN published on 28.2.2000
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GB 50312-2007
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Code for engineering acceptance of generic cabling system
WITHDRAWN published on 6.4.2007
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GB 50313-2000
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Code for design of fire communication and command system
WITHDRAWN published on 22.2.2000
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