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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
The techniques used in selection of superior trees from major coniferous species for silviculture
WITHDRAWN published on 1.1.1988
Selected format:Technique on establishment and management of seed orchards for major coniferous species
WITHDRAWN published on 1.1.1988
Selected format:Single phase plugs and socket-outlets for household and similar purposes Typesbasic parameters and dimensions
WITHDRAWN published on 10.1.1996
Selected format:Single phase plugs and socket-outlets for household and similar purposes—Types,basic parameters and dimensions
WITHDRAWN published on 24.9.2008
Selected format:Single phase plugs and socket-outlets for household and similar purposes—Typesbasic parameters and dimensions
WITHDRAWN published on 24.9.2008
Selected format:Single phase plugs and socket-outlets for household and similar purposes—Types,basic parameters and dimensions
WITHDRAWN published on 11.10.2021
Selected format:Office machines--Basic arrangement for the alphanumeric section of keyboards operated with both hands
WITHDRAWN published on 10.12.1988
Selected format:-
WITHDRAWN published on 1.1.1988
Selected format:Polyethylene monofilament for fisheries
WITHDRAWN published on 1.1.1988
Selected format:Synthetic fibre netting--Test method for knot stability
WITHDRAWN published on 1.1.1988
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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