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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
Standard for fundamental terms of geotechnical engineering
WITHDRAWN published on 1.1.1998
Selected format:Metallic materials—Sheet and strip—Determination of tensile strain hardening exponent(n-values)
WITHDRAWN published on 1.11.1999
Selected format:Code for installation and acceptance of foam extinguishing system
WITHDRAWN published on 30.9.1998
Selected format:Code for installation and acceptance of foam extinguishing systems
WITHDRAWN published on 19.6.2006
Selected format:Code for Urban Water Supply Engineering Planning
WITHDRAWN published on 20.8.1998
Selected format:Code for fire protection design of aircraft hangar
WITHDRAWN published on 30.9.1998
Selected format:Code for design of levee project
WITHDRAWN published on 8.10.1998
Selected format:Code for water resources and hydropower engineering geological investigation
WITHDRAWN published on 4.3.1999
Selected format:Code for hydropower engineering geological investigation
WITHDRAWN published on 20.7.2006
Selected format:Code for design of irrigation drainage engineering
WITHDRAWN published on 2.3.1999
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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