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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
Clad steel plates - Mechanical and technological test
Standard published on 13.5.2008
Selected format:
Clad steel platesMechanical and technological test
Execute Date: february 2027
Standard published on 2.7.2026
Selected format:Metallic materials—Fatigue testing—Fatigue crack growth method
Standard published on 12.7.2017
Selected format:Chemical reagent--Sodium hydrogen carbonate
Standard published on 9.9.1997
Selected format:Metallic materials - Shear test method for wires and rivets
Standard published on 11.9.2007
Selected format:Method for ultrasonic testing of steel forgings
Standard published on 29.9.2024
Selected format:Radii of sphere surfaces
Standard published on 27.9.2008
Selected format:Lubricating grooves
Standard published on 27.9.2008
Selected format:Knurl
Standard published on 27.9.2008
Selected format:Rounding and chamfer of parts
Standard published on 27.9.2008
Selected format:Latest update: 2026-08-09 (Number of items: 2 292 444)
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