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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
Electromechanical switches for use in electronic equipment--Part 5: Sectional specification for pushbutton switches
WITHDRAWN published on 9.9.1996
Selected format:Potentiometers for use in electronic equipment—Part 5:Sectional specification Single-turn rotary low-power wirewound and non-wirewound potentiometers
WITHDRAWN published on 9.9.1996
Selected format:-
WITHDRAWN published on 1.1.1979
Selected format:Naphthol AS
WITHDRAWN published on 18.1.1994
Selected format:Naphthol AS
WITHDRAWN published on 24.8.2006
Selected format:Message handling Electronic data interchange messaging service
WITHDRAWN published on 9.9.1996
Selected format:General arrangements for interworking between packet switched public data networks (PSPDN) and circuit switched public data networks (CSPDN) for the provision of data transmission services
WITHDRAWN published on 9.9.1996
Selected format:General arrangements for interworking between packet switched public data networks (PSPDN)
WITHDRAWN published on 9.9.1996
Selected format:Specification of leadframes for plastic leaded chip carrier packages
WITHDRAWN published on 9.9.1996
Selected format:Chloronitrobenzene
WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2025-11-10 (Number of items: 2 243 715)
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