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Standards GB - Chinese national standards - Page 7264
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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GBN 255-1985
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WITHDRAWN published on 1.1.1985
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GB/T 2550-1992
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Specification for hose for equipment for gas welding, cutting and related processes—Oxygen rubber hose
WITHDRAWN published on 9.6.1992
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GB/T 2550-2007
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Gas welding equipment—Rubber hose for welding, cutting and allied processes
WITHDRAWN published on 28.11.2007
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GB/T 2550-2016
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Gas welding equipment—Rubber hoses for welding, cutting and allied processes
WITHDRAWN published on 24.2.2016
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GB 25501-2010
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Minimum allowable values of water efficiency and water efficiency grades for faucets
WITHDRAWN published on 10.1.2011
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GB 25502-2010
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Minimum allowable values of water efficiency and water efficiency grades for water closets
WITHDRAWN published on 10.1.2011
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GB 25502-2017
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Minimum allowable values of water efficiency and water efficiency grades for water closets
WITHDRAWN published on 9.3.2017
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GB/T 25503-2010
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Requirements in sell and market service of city gas burning-appliances
WITHDRAWN published on 10.1.2011
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GB/T 2551-1992
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Specification for hose for equipment for gas welding, cutting and related processes—Acetylene rubber hose
WITHDRAWN published on 9.6.1992
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GB 2552-1981
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Rubber hose for transporting dilute acid and alkali
WITHDRAWN published on 1.1.1981
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