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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
Metallographic test for gray cast iron
WITHDRAWN published on 30.10.2009
Selected format:Radial ball bearings with flanged outer ring--Flange dimensions
WITHDRAWN published on 24.1.1987
Selected format:Rolling bearings—Radial ball bearings with flanged outer ring—Falange dimensions
WITHDRAWN published on 11.10.2002
Selected format:Miniature deep groove ball bearings with flanged outer ring--Boundarg dimensions
WITHDRAWN published on 1.1.1987
Selected format:Rolling bearings Miniature radial ball bearings with flanged outer ring Boundary dimensions
WITHDRAWN published on 14.12.1995
Selected format:Miniature angular contact ball bearings with flanged outer ring--Boundary dimensions
WITHDRAWN published on 1.1.1987
Selected format:Surface roughness--Terminology--Measurement of surface roughness parameters
WITHDRAWN published on 24.1.1987
Selected format:Field balancing equipment--Description and evaluation
WITHDRAWN published on 15.1.1987
Selected format:Epidemic prevention vehicle for domestic animals and fowls
WITHDRAWN published on 1.1.1987
Selected format:Rong Chang swine
WITHDRAWN published on 26.1.1987
Selected format:Latest update: 2026-04-05 (Number of items: 2 271 011)
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