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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
Digital electronic d.c.voltmeters and d.c.electronic analogue-to-digital convertors
WITHDRAWN published on 11.1.1994
Selected format:The specification for offshore observations
WITHDRAWN published on 11.1.1994
Selected format:The specification for offshore observations
WITHDRAWN published on 16.2.2006
Selected format:The terms of electronic data interchange
WITHDRAWN published on 11.1.1994
Selected format:Identification cards—Physical characteristics
WITHDRAWN published on 11.1.1994
Selected format:Identification cards—Physical characteristics
WITHDRAWN published on 14.3.2006
Selected format:Earth-moving machinery—Service instrumentation
WITHDRAWN published on 11.1.1994
Selected format:-
WITHDRAWN published on 1.1.1979
Selected format:Specification of the four channels digital sound sub-carrier system
WITHDRAWN published on 26.1.1994
Selected format:The demand for the picture quality of PAL-D system in satellite television broadcasting services
WITHDRAWN published on 26.1.1994
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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