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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
Water quality—Determination of sulphate—Flame atomic absorption spectrophotometric method
WITHDRAWN published on 31.8.1991
Selected format:Standard for basic terms and general symbols used in structural design of engineering
WITHDRAWN published on 26.6.1990
Selected format:Coating for optical elements--Front surface reflecting coating
WITHDRAWN published on 1.1.1988
Selected format:Packaging--Dimensions of cylinder transport package
WITHDRAWN published on 9.7.1997
Selected format:-
WITHDRAWN published on 1.1.1991
Selected format:Series of motorcycle rims
WITHDRAWN published on 14.10.1997
Selected format:Series of motorcycle rims
WITHDRAWN published on 13.12.2007
Selected format:Strength test for motorcycle tyres
WITHDRAWN published on 5.10.1991
Selected format:Test methods for verifying capabilities of motorcycle tyres
WITHDRAWN published on 13.12.2007
Selected format:Test methods for verifying capabilities of motorcycle tyres
WITHDRAWN published on 24.7.2014
Selected format:Latest update: 2026-01-21 (Number of items: 2 257 297)
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