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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
Basic types sizes parameters and characteristics of fans
WITHDRAWN published on 14.6.1999
Selected format:Implementation of 7-bit and 8-bit coded character sets for information processing interchange on punched paper cards
WITHDRAWN published on 16.11.1982
Selected format:Biodegradable poly(butylene adipate terephthalate)(PBAT)
WITHDRAWN published on 31.12.2015
Selected format:Information processing—Cores perforated paper tape for information interchange—Dimensions
WITHDRAWN published on 16.11.1982
Selected format:Test methods for reverse osmosis membranes
WITHDRAWN published on 31.12.2015
Selected format:Phrase and codification of chemical hazard statements
WITHDRAWN published on 31.12.2015
Selected format:Linear motor vehicles for urban mass transit
WITHDRAWN published on 31.12.2015
Selected format:Information technology—Cloud computing—Reference architecure
WITHDRAWN published on 31.12.2015
Selected format:Welds-symbolic representation on drawings
WITHDRAWN published on 10.12.1988
Selected format:Octave and third-octave band filters used for the analysis of sound and vibration
WITHDRAWN published on 1.1.1982
Selected format:Latest update: 2026-06-10 (Number of items: 2 281 917)
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