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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
Rubber,butadiene(BR)—Solution-polymerized types—Evaluation procedures
WITHDRAWN published on 13.7.1998
Selected format:Rubber,butadiene(BR)—Solution-polymerized types—Evaluation procedures
WITHDRAWN published on 19.6.2008
Selected format:Determination of residual acrylonitrile monomer content in acrylonitrile-butadiene-styrene resin by gas chromatography
WITHDRAWN published on 9.2.1988
Selected format:Fitting dimension between knife blades and knife handles
WITHDRAWN published on 13.2.1988
Selected format:General specifications for tooth forceps
WITHDRAWN published on 13.2.1988
Selected format:Tooth forceps for adults
WITHDRAWN published on 8.2.1988
Selected format:Tooth forceps for children
WITHDRAWN published on 8.2.1988
Selected format:Specifications for suture forceps
WITHDRAWN published on 13.2.1988
Selected format:Uterine vulsellum forceps
WITHDRAWN published on 13.2.1988
Selected format:oviduct ligating hook
WITHDRAWN published on 13.2.1988
Selected format:Latest update: 2025-08-17 (Number of items: 2 211 709)
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