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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
Ethyl benzene for industrial use--Determination of trace sulphur--Micro-coulometric method
WITHDRAWN published on 1.1.1987
Selected format:Ethyl benzene for industrial use--Determination of ethyl benzene purity and hydrocarbon impurities--Gas chromatographic method
WITHDRAWN published on 1.1.1987
Selected format:Cross recessed small pan head screws
WITHDRAWN published on 24.6.1988
Selected format:Tinplate (or ECCS) coated with the epoxy phenolic type of lacquers
WITHDRAWN published on 1.1.1987
Selected format:Sorghum
WITHDRAWN published on 8.10.1987
Selected format:Sorghum
WITHDRAWN published on 16.10.2007
Selected format:Millet in husk
WITHDRAWN published on 8.10.1987
Selected format:Millet in husk
WITHDRAWN published on 4.11.2008
Selected format:Sesame oil
WITHDRAWN published on 8.10.1987
Selected format:Sesameseed oil
WITHDRAWN published on 27.6.2008
Selected format:Latest update: 2026-03-20 (Number of items: 2 268 518)
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