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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
Detail specification for electronic component--High frequency silicon dual insulated-gate field-effect transistor of type 4CS103
WITHDRAWN published on 1.1.1988
Selected format:Detail specification for electronic components--Reverse blocking triode thyristorcase-rated for type 3CT320
WITHDRAWN published on 1.1.1988
Selected format:Detail specification for electronic components--Avalanche triode thyristor case-rated for type 3CT315
WITHDRAWN published on 1.1.1988
Selected format:-
WITHDRAWN published on 1.1.1988
Selected format:Barium flash getters
WITHDRAWN published on 17.6.1998
Selected format:Generic rules for test method of getter properties
WITHDRAWN published on 25.6.1988
Selected format:Test method for firmness of getter by pressure or sinter
WITHDRAWN published on 25.6.1988
Selected format:Test method for weld strenght of getter support
WITHDRAWN published on 25.6.1988
Selected format:Test method for barium yield of barium flash getter
WITHDRAWN published on 25.6.1988
Selected format:Test method for barium content in getter fill and getter film of barium flash getter
WITHDRAWN published on 25.6.1988
Selected format:Latest update: 2026-04-17 (Number of items: 2 274 270)
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