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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
Standard for production technology of bovine embryo
WITHDRAWN published on 29.9.2011
Selected format:Transmission line towers--Technical requirements for manufacturing
WITHDRAWN published on 18.7.1981
Selected format:Transmission line tower—Technical requirements for manufacturing
WITHDRAWN published on 14.4.2003
Selected format:Specification of manufacturing for transmission line tower
WITHDRAWN published on 23.12.2010
Selected format:Dried oysters
WITHDRAWN published on 29.9.2011
Selected format:Fences - Part 1: General rules
WITHDRAWN published on 19.7.2011
Selected format:Fences - Part 2: Posts, brace posts and gates
WITHDRAWN published on 19.7.2011
Selected format:Fences - Part 3: Welded steel wire fences
WITHDRAWN published on 19.7.2011
Selected format:Fences - Part 4: Barbed steel wire fences
WITHDRAWN published on 19.7.2011
Selected format:Fences - Part 5: Woven steel wire fences
WITHDRAWN published on 19.7.2011
Selected format:Latest update: 2026-03-25 (Number of items: 2 269 413)
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