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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
Micrometer with dial comparator
Standard published on 11.7.2022
Selected format:Designation of cast nonferrous metals and their alloys
Standard published on 29.12.2017
Selected format:Acceptance conditions for gear hobbing machines--Testing of the accuracy
Standard published on 18.11.1998
Selected format:Geometrical product specifications (GPS)—Functional gauges
Standard published on 29.9.2024
Selected format:Knurled nuts
Standard published on 24.6.1988
Selected format:Chrysotile asbestos
Standard published on 20.8.2008
Selected format:Method of sampling and preparation for chrysotile asbestos
Standard published on 31.12.2012
Selected format:Testing method for specific surface of cement - Blaine method
Standard published on 9.1.2008
Selected format:Testing method for specific surface of cement—Blaine method
Standard published on 9.1.2008
Selected format:Terms of concrete admixtures
Standard published on 29.12.2017
Selected format:Latest update: 2026-08-19 (Number of items: 2 298 207)
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