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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
Determination of water content in petroleum products
WITHDRAWN published on 8.11.1977
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WITHDRAWN published on 1.8.1986
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WITHDRAWN published on 1.1.1981
Selected format:Technical xylenol
WITHDRAWN published on 17.3.1997
Selected format:Stainless steel pliable corrugated tubing and fittings used in gas piping systems
WITHDRAWN published on 10.1.2011
Selected format:Copper and copper alloys—Strip for springs and connectors
WITHDRAWN published on 10.1.2011
Selected format:Battery grade lithium hydorxide monohydrate
WITHDRAWN published on 10.1.2011
Selected format:Products from phenols;Determination of composition;Gas chromatography
WITHDRAWN published on 10.4.1981
Selected format:Aluminium alloy extruded profiles used for decoration excluding architecture
WITHDRAWN published on 10.1.2011
Selected format:High purity nickel
WITHDRAWN published on 10.1.2011
Selected format:Latest update: 2026-04-19 (Number of items: 2 274 482)
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