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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
Gearbox of wind turbine generator system
WITHDRAWN published on 3.6.2008
Selected format:Sintered metal materials—Specifications
WITHDRAWN published on 15.4.2003
Selected format:Particle size analysis—Laser diffraction methods
WITHDRAWN published on 24.2.2016
Selected format:Particle size analysis—Laser diffraction method
WITHDRAWN published on 15.4.2003
Selected format:Particle size analysis—Laser diffraction methods—Part 1:General principles
WITHDRAWN published on 16.4.2008
Selected format:Magnesium alloy ingots for castings
WITHDRAWN published on 15.4.2003
Selected format:Operation conditions and technical requirements for gymnasium and playground—Part 1:Swimming place
WITHDRAWN published on 21.4.2003
Selected format:Operation conditions and technical requirements for gymnasium and playground Part 10:Scuba diving place
WITHDRAWN published on 24.1.2005
Selected format:Operation conditions and technical requirements for gymnasium and playground Part 12:Para-glider place
WITHDRAWN published on 24.1.2005
Selected format:Operation conditions and technical requirements for gymnasium and playground Part 13:Ballooning place
WITHDRAWN published on 24.1.2005
Selected format:Latest update: 2025-08-17 (Number of items: 2 211 709)
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