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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
Molecular sieve 5A and its determination
WITHDRAWN published on 29.6.1992
Selected format:Automotive V-ribbed belts
WITHDRAWN published on 19.10.1998
Selected format:Automotive V-ribbed belts
WITHDRAWN published on 30.12.2008
Selected format:High efficiency particulate air filter
WITHDRAWN published on 14.7.1992
Selected format:High efficiency particulate air filter
WITHDRAWN published on 4.11.2008
Selected format:Flexible copper-clad polyimide film for printed circuits
WITHDRAWN published on 8.7.1992
Selected format:Flexible copper-clad polyester film for printed circuits
WITHDRAWN published on 8.7.1992
Selected format:Test methods for flexible copper-clad material for printed circuits
WITHDRAWN published on 8.7.1992
Selected format:Dysprosium oxide
WITHDRAWN published on 9.7.1992
Selected format:Dysprosium oxide
WITHDRAWN published on 31.3.2008
Selected format:Latest update: 2026-08-02 (Number of items: 2 290 553)
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