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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
General terms and their definitions of thermoplastic pipes, fittings and valves
WITHDRAWN published on 25.8.2003
Selected format:General requirements for physical and mechanical tests of wood
WITHDRAWN published on 3.5.1991
Selected format:General requirements for physical and mechanical tests of wood
WITHDRAWN published on 23.2.2009
Selected format:Analytic method for calcium carbonate
WITHDRAWN published on 25.8.2003
Selected format:Analytic method for lithium hexafluorophosphate
WITHDRAWN published on 25.8.2003
Selected format:Dimensions series of container ship passing the lock of three gorges dam
WITHDRAWN published on 11.9.2003
Selected format:Dimensions series of container ship passing—the lock of Three Gorges Dam
WITHDRAWN published on 14.1.2011
Selected format:Hyperbaric chamber pressurized with medical oxygen
WITHDRAWN published on 11.9.2003
Selected format:Inspection of corrosion protection for buried steel pipelines
WITHDRAWN published on 11.9.2003
Selected format:Electromagnetic Compatibility Requirement and measurement methods for Telecommunication Network Equipment
WITHDRAWN published on 15.9.2003
Selected format:Latest update: 2025-08-26 (Number of items: 2 213 294)
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