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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
Glass blank of ophthalmic lenses
WITHDRAWN published on 15.2.1993
Selected format:Metric tape screw thread
WITHDRAWN published on 9.2.1992
Selected format:Canned mushroom
WITHDRAWN published on 2.4.1999
Selected format:Canned mushrooms
WITHDRAWN published on 18.7.2006
Selected format:Plastics doors—Soft heavy body impact test
WITHDRAWN published on 15.2.1993
Selected format:Classification and code of flavouring substances
WITHDRAWN published on 15.2.1993
Selected format:Classification and code of flavoring substances
WITHDRAWN published on 8.4.2009
Selected format:Hydrogeologic terminology
WITHDRAWN published on 12.2.1993
Selected format:The evaluation rule for universal keyboard Chinese character coding input method
WITHDRAWN published on 16.2.1993
Selected format:Envelopes
WITHDRAWN published on 17.7.1993
Selected format:Latest update: 2025-07-02 (Number of items: 2 207 218)
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