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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
Industrial liquid carbon dioxide
WITHDRAWN published on 30.12.2011
Selected format:The methods for the measurement and calculation of heat balance, heat efficiency of annular kilne
WITHDRAWN published on 1.1.1985
Selected format:The methods for the measurement and calculation of heat balance, heat efficiency of tunnel dryer
WITHDRAWN published on 1.1.1985
Selected format:The methods for the calculation of the efficiency, unit heat consumption and unit coal consumption of tunnel dryer annular kiln system
WITHDRAWN published on 1.1.1985
Selected format:Test method for volatile content prepreg
WITHDRAWN published on 1.1.1985
Selected format:Test method for tensile strength of preimpregnated roving
WITHDRAWN published on 1.1.1985
Selected format:Method for preparation and internal pressure testing of filamentwound pressure vessels
WITHDRAWN published on 28.5.1985
Selected format:Test method for flexural creep of GRP sheet and GRP sandwich construction with honeycomb core
WITHDRAWN published on 1.1.1985
Selected format:Chemical reagent--General method for the determination of water (Karl Fischer method)
WITHDRAWN published on 5.9.1988
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WITHDRAWN published on 1.1.1985
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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