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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
Feed additive—Methionine hydroxy calcium
WITHDRAWN published on 21.6.2007
Selected format:Determination of trimethoprim in feeds—High performance liquid chromatography
WITHDRAWN published on 21.6.2007
Selected format:Steel wire ropes—Packing, marking and certificate—General requirements
WITHDRAWN published on 22.2.1988
Selected format:Chinese soft-shelled turtle
WITHDRAWN published on 26.6.2007
Selected format:Porphyra yezoensis
WITHDRAWN published on 26.6.2007
Selected format:Chinese-sensible code
WITHDRAWN published on 23.8.2007
Selected format:-
WITHDRAWN published on 1.1.1980
Selected format:Metallic material—Standard test method for the Young""s modulus, shear modulus and Poison""s ratio (Dynamic method)
WITHDRAWN published on 6.11.1991
Selected format:Information security techniques—Security requirements for network switch(EAL3)
WITHDRAWN published on 24.8.2007
Selected format:Information security techniques—Public key infrastructure—Technology requirement for security classification protection of PKI system
WITHDRAWN published on 23.8.2007
Selected format:Latest update: 2026-01-02 (Number of items: 2 253 797)
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