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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
Copper and copper alloys—Circular waveguid tube
WITHDRAWN published on 29.2.1988
Selected format:Copper and copper-alloy waveguide tube
WITHDRAWN published on 25.10.2007
Selected format:Primary batteries—Part 1:General
WITHDRAWN published on 1.9.2003
Selected format:Primary batteries—Part 1:General
WITHDRAWN published on 30.12.2008
Selected format:Primary batteries—Part 1:General
WITHDRAWN published on 12.11.2013
Selected format:Primary batteries—Part 2:Physical and technological specifications
WITHDRAWN published on 18.1.2005
Selected format:Primary batteries—Part 2:Physical and electrical specifications
WITHDRAWN published on 30.12.2008
Selected format:Primary batteries—Part 2:Physical and electrical specifications
WITHDRAWN published on 12.11.2013
Selected format:Primary batteries—Part 3:Watch batteries
WITHDRAWN published on 6.3.2006
Selected format:Primary batteries—Part 3:Watch batteries
WITHDRAWN published on 10.10.2013
Selected format:Latest update: 2025-08-24 (Number of items: 2 213 294)
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