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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
Software engineering—Software product Quality Requirements and Evaluation (SQuaRE)—Requirements for quality of Commercial Off-The-Self (COTS) software product and instructions for testing
WITHDRAWN published on 2.9.2010
Selected format:Marine pipe flanges—Connection dimensions and mating face
WITHDRAWN published on 27.3.1989
Selected format:Ships and marine technology - Data transfer standard for maritime and intermodal transportation and security
WITHDRAWN published on 2.9.2010
Selected format:Ship-shifting winch
WITHDRAWN published on 2.9.2010
Selected format:Marine pipe flanges-soft gasket
WITHDRAWN published on 27.3.1989
Selected format:Steel pole for overhead contact system of electrified railway—Part 1:Lattice pole
WITHDRAWN published on 2.9.2010
Selected format:Steel pole for overhead contact system of electrified railway—Part 2:Square shape tube steel pole
WITHDRAWN published on 2.9.2010
Selected format:Steel pole for overhead contact system of electrified railways— Part 2:Square steel tube pole
WITHDRAWN published on 13.12.2016
Selected format:Steel pole for overhead contact system of electrified railway—Part 3:Steel tube pole
WITHDRAWN published on 2.9.2010
Selected format:Steel pole for pole for overhead contact system of electrified railways—Part 3:Steel tube pole
WITHDRAWN published on 13.12.2016
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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