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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
Jewellery—Fineness of precious metal alloys and designation
WITHDRAWN published on 31.12.2008
Selected format:Jewellery—Ring-size—Definition, measurement and designation
WITHDRAWN published on 20.7.2001
Selected format:Jewellery—Ring-size—Definition,measurement and designation
WITHDRAWN published on 3.9.2014
Selected format:Appearance quality of rubber hose
WITHDRAWN published on 1.1.1981
Selected format:-
WITHDRAWN published on 1.1.1981
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Code for utility technical of concrete admixture
WITHDRAWN published on 1.1.1988
Selected format:Off-the-road tyres
WITHDRAWN published on 1.1.1991
Selected format:Technical specification of earth-mover tyres
WITHDRAWN published on 12.11.2001
Selected format:Technical specification of earth-mover tyres
WITHDRAWN published on 24.4.2009
Selected format:Latest update: 2025-11-11 (Number of items: 2 243 547)
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