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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
Determination of thiophene content in benzene
Execute Date: may 2026
Standard published on 5.10.2025
Selected format:Roughing end mill
Standard published on 3.6.2008
Selected format:Keyway broaches
Standard published on 3.6.2008
Selected format:Machanically clamped carbide side milling cutters
Standard published on 4.11.2008
Selected format:Automatic spring winding machine—Testing of the accuracy
Standard published on 12.5.2017
Selected format:
Automatic spring winding machine—Testing of the accuracy
Execute Date: may 2026
Standard published on 31.10.2025
Selected format:Rotary axial shaving cutters
Standard published on 3.6.2008
Selected format:Sampling method for man-made staple fibres
Standard published on 10.3.2006
Selected format:Testing method for linear density of man-made staple fibres
Standard published on 18.6.2008
Selected format:Testing method for length of man-made staple fibres
Standard published on 18.6.2008
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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