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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
Acceptance inspection for direct connected alternating current static watt-hour meters for active energy (classes 1 and 2)
WITHDRAWN published on 28.7.1998
Selected format:Specification and technical requirements for 500kV current transformers
WITHDRAWN published on 23.7.1998
Selected format:The technical norms for measurement and test of characteristic parameters of infrared focal plane arrays
WITHDRAWN published on 30.7.1998
Selected format:Cast grinding balls
WITHDRAWN published on 30.7.1998
Selected format:Cast grinding balls
WITHDRAWN published on 30.10.2009
Selected format:Fluid power systems and components—Vocabulary
WITHDRAWN published on 10.8.1998
Selected format:Fluid power systems and components—Vocabulary
WITHDRAWN published on 3.9.2012
Selected format:Aerosol valve
WITHDRAWN published on 10.8.1998
Selected format:Packaging--Glass containers--Thread finish dimensions
WITHDRAWN published on 10.8.1998
Selected format:-
WITHDRAWN published on 1.1.1979
Selected format:Latest update: 2026-06-20 (Number of items: 2 283 412)
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