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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
Polyvinyl alcohol resins for fibre grade
WITHDRAWN published on 30.6.1997
Selected format:Electrical measuring instruments utilizing radioactive sources
WITHDRAWN published on 28.2.1987
Selected format:Partial discharge measurements
WITHDRAWN published on 2.3.1987
Selected format:Partial discharge measurements
WITHDRAWN published on 9.10.2003
Selected format:Sanitary standard for lead and it""s inorganic compounds in the atmosphere
WITHDRAWN published on 16.2.1987
Selected format:Preparation of diagrams for electrical system manuals
WITHDRAWN published on 2.3.1987
Selected format:-
WITHDRAWN published on 1.1.1987
Selected format:Electrical installations in ships—System design—Protection
WITHDRAWN published on 12.3.1998
Selected format:Electrical installations in ships - System design - Protection
WITHDRAWN published on 2.9.2010
Selected format:Electrical installations in ships--Systemdesign--General
WITHDRAWN published on 24.7.1998
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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