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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
Letter symbols of parameter for liquid crystal display devices
WITHDRAWN published on 23.6.1988
Selected format:Heat resistant iron castings
WITHDRAWN published on 25.6.1988
Selected format:Aluminium alloy castings
WITHDRAWN published on 3.9.1999
Selected format:Grey iron castings
WITHDRAWN published on 25.6.1988
Selected format:Grey iron castings
WITHDRAWN published on 26.9.2010
Selected format:Malleable iron castings
WITHDRAWN published on 25.6.1988
Selected format:Metallographic test for spheroidal graphite cast iron
WITHDRAWN published on 25.6.1988
Selected format:Metallographic test for spheroidal graphite cast iron
WITHDRAWN published on 30.10.2009
Selected format:Foundry silica sand
WITHDRAWN published on 30.7.1998
Selected format:Foundry silica sand
WITHDRAWN published on 26.9.2010
Selected format:Latest update: 2024-09-05 (Number of items: 2 346 132)
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