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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
Cold rolled steel sheets and strips for appliance
WITHDRAWN published on 17.12.2013
Selected format:Test method for moisture content ofordinary alumino-silicate refractory fiber felts
WITHDRAWN published on 29.3.1982
Selected format:Refractory—Determination of moisture content
WITHDRAWN published on 30.9.2006
Selected format:Ferronickel - Determination of nickel content - EDTA titrimetric method
WITHDRAWN published on 17.12.2013
Selected format:Requirements on emergency materials equipment for hazardous chemical enterprises
WITHDRAWN published on 17.12.2013
Selected format:Rule for preparing samples of ordinary alumino-silicate refractory fiber felts
WITHDRAWN published on 29.3.1982
Selected format:Safe production specifications for copper and copper alloy melting and casting
WITHDRAWN published on 17.12.2013
Selected format:Ships corrosion-resistant plugs
WITHDRAWN published on 15.4.1982
Selected format:General specifications for laboratory centrifuge
WITHDRAWN published on 17.12.2013
Selected format:Rolling bearings--Thrust ball bearings with flat back faces--Boundary dimensions
WITHDRAWN published on 1.1.1984
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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