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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
Rolling bearings--Cylindrical roller bearings without inner and outer ring--Boundary dimensions
WITHDRAWN published on 1.1.1987
Selected format:-
WITHDRAWN published on 8.6.1988
Selected format:Coarse and fine aggregates of expanded shale
WITHDRAWN published on 1.1.1981
Selected format:National food safety standards of food additives -- Phospholipid
WITHDRAWN published on 17.5.2012
Selected format:Natural lightweight aggregates
WITHDRAWN published on 1.1.1981
Selected format:Structural steel plate for wind power tower
WITHDRAWN published on 29.6.2012
Selected format:Fire-resistant structural steel plate and strip
WITHDRAWN published on 29.6.2012
Selected format:Carbon bearing steel
WITHDRAWN published on 29.6.2012
Selected format:Test methods for lightweight aggregates
WITHDRAWN published on 29.12.1981
Selected format:Rail flaw detection vehicle
WITHDRAWN published on 29.6.2012
Selected format:Latest update: 2026-05-13 (Number of items: 2 276 848)
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