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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
Technical requirements for silicon metal
WITHDRAWN published on 5.10.1991
Selected format:Silicon metal
WITHDRAWN published on 31.3.2008
Selected format:Silicon metal
WITHDRAWN published on 5.12.2014
Selected format:Fuel cell—Terminology
WITHDRAWN published on 5.11.2012
Selected format:Single cell test methods for polymer electrolyte fuel cell(PEFC)
WITHDRAWN published on 5.11.2012
Selected format:Selection guide for polymeric materials for outdoor use under HV stress
WITHDRAWN published on 5.11.2012
Selected format:Aluminium alloy enclosures for gas-filled high-voltage switchgear
WITHDRAWN published on 5.11.2012
Selected format:Nickel and nickel-copper alloy tube
WITHDRAWN published on 30.12.1981
Selected format:Nickel and nickel alloys tube
WITHDRAWN published on 26.7.2005
Selected format:Nickel and nickel alloys tube
WITHDRAWN published on 17.12.2013
Selected format:Latest update: 2025-05-12 (Number of items: 2 199 201)
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