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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, raw natural—Determination of plasticity retention index(PRI)
WITHDRAWN published on 8.7.2014
Selected format:Combustible material preprocessed from CMSW for coprocessing in cement kiln
WITHDRAWN published on 29.12.2017
Selected format:Flake graphite
WITHDRAWN published on 1.1.1983
Selected format:Flake graphite
WITHDRAWN published on 7.2.1995
Selected format:Flake graphite
WITHDRAWN published on 20.8.2008
Selected format:Methods for major fire potential judgment
WITHDRAWN published on 29.12.2017
Selected format:Amorphous graphite
WITHDRAWN published on 1.1.1983
Selected format:Amorphous graphite
WITHDRAWN published on 7.2.1995
Selected format:Amorphous graphite
WITHDRAWN published on 20.8.2008
Selected format:Locked coil wire ropes
WITHDRAWN published on 29.2.1988
Selected format:Latest update: 2026-01-21 (Number of items: 2 257 297)
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