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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
Instruments for the measurement of aural acoustic impedance/admittance
WITHDRAWN published on 21.12.1995
Selected format:Methamidophos technical
WITHDRAWN published on 21.12.1995
Selected format:Gibberellins technical
WITHDRAWN published on 21.12.1995
Selected format:Gibberellic acid technical material
WITHDRAWN published on 30.12.2011
Selected format:Calcium carbide steel drum for the home market
WITHDRAWN published on 21.12.1995
Selected format:Corrosivity classification of atmospheric environment
WITHDRAWN published on 21.12.1995
Selected format:Determination of speed of black-and-white motion-picture negative film
WITHDRAWN published on 20.12.1995
Selected format:Fly ash used for cement and concrete
WITHDRAWN published on 4.6.1991
Selected format:Fly ash used for cement and concrete
WITHDRAWN published on 19.1.2005
Selected format:Fly ash used for cement and concrete
WITHDRAWN published on 19.1.2005
Selected format:Latest update: 2025-11-10 (Number of items: 2 243 715)
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