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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 of circular connectors for radio and associated sound equipment--YC type circular connectors
WITHDRAWN published on 1.1.1986
Selected format:Detail specification of circular connectors for radio and associated sound equipment--YL type circular connectors
WITHDRAWN published on 1.1.1986
Selected format:-
WITHDRAWN published on 1.1.1976
Selected format:Detail specification for electronic components--Bipolar transistors for ambient-rated low and high frequency amplification of types 3DG130A, SDG130B, 3DG130C, 3DG 130D
WITHDRAWN published on 1.1.1986
Selected format:Detail specification for electronic components--Bipolar transistors for ambient-rated low and high frequency amplification types 3DG111B, 3DG111C, 3DG111E, 3DG111F
WITHDRAWN published on 1.1.1986
Selected format:Detail specification for electronic components--Bipolar transistors for ambient-rated low and high frequency amplification types 3DG201C
WITHDRAWN published on 1.1.1986
Selected format:Detail specification for electronic components--Bipolar transistors for switching amplification types 3DK106A, 3DK106B
WITHDRAWN published on 1.1.1986
Selected format:Oil-change criterion of railway diesel locomotive engine oils
WITHDRAWN published on 31.1.1986
Selected format:Oil-change criterion of railway diesel locomotive engine oils--Test method for determination of matter in-soluble in petroleum ether (Volumetric method)
WITHDRAWN published on 31.1.1986
Selected format:Test method of petroleum ether insolubles in lubricating oil for railway locomotive diesel engine
WITHDRAWN published on 11.6.2004
Selected format:Latest update: 2026-04-28 (Number of items: 2 274 955)
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