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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
Measurement of the longitudinal wave velocity and attenuation for underwater acoustical materials—Pulse-tube method
WITHDRAWN published on 26.7.1985
Selected format:Electroplated coatings on threaded fasteners
WITHDRAWN published on 25.7.1985
Selected format:Fasteners—Electroplated coatings
WITHDRAWN published on 5.12.2002
Selected format:Fasteners—Non-electrolytically applied zinc flake coatings
WITHDRAWN published on 5.12.2002
Selected format:Fasteners—Non-electrolytically applied zinc flake coatings
WITHDRAWN published on 29.12.2017
Selected format:Machine tools--Lathe tool posts--Overall internal height
WITHDRAWN published on 29.6.1985
Selected format:Double-pitch precision roller chains and sprockets for transmission and conveyors
WITHDRAWN published on 11.10.1999
Selected format:Rubber, vulcanized--The general requirements for the physical test method
WITHDRAWN published on 1.1.1983
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WITHDRAWN published on 1.1.1985
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WITHDRAWN published on 1.1.1985
Selected format:Latest update: 2026-08-25 (Number of items: 2 298 362)
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