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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
Colour carbon black - Determination of blackness
Standard published on 29.6.2012
Selected format:
Colour black—Determination of chrominance
Execute Date: september 2026
Standard published on 27.2.2026
Selected format:Colour carbon black - Determination of flow characteristic
Standard published on 29.6.2012
Selected format:Safety requirements for portable wood ladders
Standard published on 26.6.2007
Selected format:Safety requirements for portable wood ladders
Standard published on 26.6.2007
Selected format:Hot rolled section steel
Standard published on 30.12.2016
Selected format:Hot rolled section steel
Standard published on 30.12.2016
Selected format:
Hot rolled section steel
Execute Date: december 2026
Standard published on 25.5.2026
Selected format:General specifications for rotary electrical machines in ships
Standard published on 10.5.2019
Selected format:Low-voltage switchgear and controlgear assemblies in ship
Standard published on 29.8.2016
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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