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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—Single-row angular contact ball bearings—Chamfer dimensions for outer ring non-thrust side
WITHDRAWN published on 9.1.2006
Selected format:Rolling bearings—Dynamic load ratings and rating life—Discontinuities in the calculating of basic dynamic load ratings
WITHDRAWN published on 9.1.2006
Selected format:Method for determination of the mechanical strength in metallurgical cokes
WITHDRAWN published on 1.1.1980
Selected format:Coke for metallurgy—Determination of mechanical strength
WITHDRAWN published on 26.9.1994
Selected format:Rolling bearings—Cylindrical roller bearings, separate thrust collars—Boundary dimensions
WITHDRAWN published on 9.1.2006
Selected format:Mobile crawler crane—Limits and measurement methods for operating noise
WITHDRAWN published on 24.1.2006
Selected format:Reciprocating internal combustion engines—Handle starting equipment—Part 1:Safety requirements and tests
WITHDRAWN published on 7.2.2006
Selected format:Reciprocating internal combustion engines—Handle starting equipment—Part 1:Safety requirements and tests
WITHDRAWN published on 10.12.2015
Selected format:Screw-thread steel bars for the prestressing of concrete
WITHDRAWN published on 5.2.2006
Selected format:Large diameter steel wire ropes
WITHDRAWN published on 5.2.2006
Selected format:Latest update: 2025-12-26 (Number of items: 2 253 153)
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