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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
Rolling bearings—Symbols for quantities
WITHDRAWN published on 3.9.1999
Selected format:Rolling bearings—Symbols for quantities
WITHDRAWN published on 28.2.2007
Selected format:Rolling bearings accessories—Plummer block housings—Boundary dimensions
WITHDRAWN published on 12.8.1998
Selected format:Rolling bearings—Split type plummer block housings—Boundary dimensions
WITHDRAWN published on 28.2.2008
Selected format:2-Propanol
WITHDRAWN published on 25.5.1987
Selected format:Isopropyl alcohol for industrial use
WITHDRAWN published on 4.6.2008
Selected format:Pentaerythritol for industrial use
WITHDRAWN published on 21.12.1995
Selected format:Yellow phosphorus for industrial use
WITHDRAWN published on 19.10.1998
Selected format:Spark plugs
WITHDRAWN published on 2.6.1987
Selected format:Analysis techniques for system reliability—Procedure for failure mode and effects analysis(FMEA)
WITHDRAWN published on 3.6.1987
Selected format:Latest update: 2025-07-19 (Number of items: 2 208 893)
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