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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
Rules for tobacco seed (blue mold) quarantine
WITHDRAWN published on 28.8.1995
Selected format:Series of conical tapers and taper angles
WITHDRAWN published on 1.1.1989
Selected format:Geometrical product specifications(GPS) Series of conical tapers and taper angles
WITHDRAWN published on 15.9.2001
Selected format:Conical shaft ends
WITHDRAWN published on 9.1.1990
Selected format:General specification for polytetrafluoroethylene bellows compensators
WITHDRAWN published on 8.9.1995
Selected format:Protective clothing for welders
WITHDRAWN published on 11.9.1995
Selected format:General specification for flameproof electrical machines
WITHDRAWN published on 6.9.1995
Selected format:Passenger cars—Wheels—Impact test procedure
WITHDRAWN published on 12.9.1995
Selected format:Road vehicles - Light alloy wheels - Impact test procedure
WITHDRAWN published on 31.12.2012
Selected format:Safety of machinery—Basic concept, general principles for design—Part 1:Basic terminology, methodology
WITHDRAWN published on 22.9.1995
Selected format:Latest update: 2026-07-26 (Number of items: 2 290 396)
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