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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
Cigarettes-Mainstream smoke
Standard published on 17.6.2005
Selected format:Cigarettes-Quality Evaluation
Standard published on 17.6.2005
Selected format:Foundry terminology
Standard published on 29.12.2017
Selected format:Designation of cast irons
Standard published on 28.3.2025
Selected format:Designation for cast steels
Standard published on 3.9.2014
Selected format:
Designation for cast steels
Execute Date: february 2027
Standard published on 2.7.2026
Selected format:Non-destructive testingGuidelines for application
Standard published on 6.5.2014
Selected format:Determination of effective depth of hardening after induction or flame hardening of steel
Standard published on 25.11.1985
Selected format:Determination of surface hardening depth for steel
Standard published on 29.8.2025
Selected format:Shed storage exposure test method for rust preventives material
Standard published on 31.10.2025
Selected format:Latest update: 2026-08-13 (Number of items: 2 293 179)
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