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Standards GB - Chinese national standards - Page 7969
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 50491-2009
WITHDRAWN
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Code for design of iron pellet engineering
WITHDRAWN published on 17.6.2009
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GB 50493-2009
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Specification for design of combustible gas and toxic gas detection and alarm for petrochemical industry
WITHDRAWN published on 19.3.2009
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GB 50494-2009
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Technical code for city gas
WITHDRAWN published on 31.3.2009
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GB 50495-2009
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Technical code for solar heating system
WITHDRAWN published on 19.3.2009
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GB 50496-2009
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Code for construction of mass concrete
WITHDRAWN published on 13.5.2009
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GB 50497-2009
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Technical code for monitoring of building excavation engineering
WITHDRAWN published on 31.3.2009
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GB 5050-1985
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Accuracy tests of the veneer lathe
WITHDRAWN published on 1.1.1985
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GB 50500-2003
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Code of valuation with bill quantity of construction works
WITHDRAWN published on 17.2.2003
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GB 50500-2008
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Code of valuation with bill quantity of construction works
WITHDRAWN published on 9.7.2008
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GB 50500-2013
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Code of bills quantities and valuation for construction works
WITHDRAWN published on 25.12.2012
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