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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
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WITHDRAWN published on 10.1.2011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WITHDRAWN published on 10.1.2011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WITHDRAWN published on 10.4.1981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WITHDRAWN published on 10.1.2011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WITHDRAWN published on 10.1.2011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:High purity copper
WITHDRAWN published on 10.1.2011
Selected format:High purity cobalt
WITHDRAWN published on 10.1.2011
Selected format:Products from phenols--Determination of intermediate cresol content by the urea method
WITHDRAWN published on 10.4.1981
Selected format:Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system
WITHDRAWN published on 10.1.2011
Selected format:Aluminium and aluminium alloys drawn seamless tubes for large circumscribed circle diameter of cross section
WITHDRAWN published on 10.1.2011
Selected format:Latest update: 2026-03-27 (Number of items: 2 269 573)
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