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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
Glass fiber reinforced plastics--Average linear expansion factor of fiber--Method of testing
WITHDRAWN published on 8.4.1981
Selected format:Technical specification of surveillance video and audio coding
WITHDRAWN published on 23.12.2010
Selected format:Grain and oil machinery—Pneumatic rollermill
WITHDRAWN published on 23.12.2010
Selected format:Test method for atmosphere exposure of glass fiber reinforced plastics
WITHDRAWN published on 31.3.1989
Selected format:Lotus rhizome powder
WITHDRAWN published on 23.12.2010
Selected format:Acceptance norms for 1000kV substation monitoring system
WITHDRAWN published on 23.12.2010
Selected format:Technical guideline of motor commissioning for nuclear power plant
WITHDRAWN published on 23.12.2010
Selected format:Test method for resistance of glass fiberreinforced plastics to damp heat
WITHDRAWN published on 31.3.1989
Selected format:PROFIBUS PROFINET technical profile PROFIdrive—Part 1:Profile specifications
WITHDRAWN published on 14.1.2011
Selected format:PROFIBUS & PROFINET technical profile PROFIdrive—Part 2:Mapping of profiles to network technologies
WITHDRAWN published on 14.1.2011
Selected format:Latest update: 2026-03-30 (Number of items: 2 269 988)
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