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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
Metallic materials—Fatigue testing—Axial-force-controlled method
WITHDRAWN published on 5.8.2008
Selected format:Classification of basic dense shaped refractory products containing from 7% to 50% residual carbon
WITHDRAWN published on 9.6.2014
Selected format:Method for tensile testing of metallic sheet and strip
WITHDRAWN published on 10.5.1982
Selected format:Technical specification for coprocessing of solid waste in cement kiln
WITHDRAWN published on 9.6.2014
Selected format:Almond kernel
WITHDRAWN published on 9.6.2014
Selected format:Alloy structure steels
WITHDRAWN published on 1.11.1999
Selected format:Domestic devitroceram
WITHDRAWN published on 8.7.2014
Selected format:Technical requirements for cold drawn quality structure steel bars
WITHDRAWN published on 1.1.1982
Selected format:Technical requirements for quality structural steel cold drawn bars
WITHDRAWN published on 22.12.1994
Selected format:Quality structural steel cold drawn bars
WITHDRAWN published on 13.5.2008
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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