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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
Guide of primary frequency control test and performance acceptance for thermal power generating units
WITHDRAWN published on 31.12.2013
Selected format:Guide for acceptance of distributed control system in fossil fuel power plant
WITHDRAWN published on 31.12.2013
Selected format:Materials declaration questionnaires of electrical and electronic products—Basic guidelines
WITHDRAWN published on 31.12.2013
Selected format:Records for swine breeds
WITHDRAWN published on 1.1.1982
Selected format:Asbestos-cement pressure pipe for water transmission
WITHDRAWN published on 1.1.1982
Selected format:Prickly ash
WITHDRAWN published on 31.12.2013
Selected format:-
WITHDRAWN published on 1.1.1988
Selected format:Spherical plain bearings classification
WITHDRAWN published on 25.4.1988
Selected format:Spherical plain bearings—Classification
WITHDRAWN published on 11.10.2002
Selected format:Spherical plain bearings--Tolerances
WITHDRAWN published on 17.2.1989
Selected format:Latest update: 2026-03-13 (Number of items: 2 266 261)
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