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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
Steel bars for sucker rods
WITHDRAWN published on 10.1.2011
Selected format:Metallic materials—Fatigue testing—Axial-strain-controlled method
WITHDRAWN published on 10.1.2011
Selected format:Silica refractory bricks
WITHDRAWN published on 1.1.1987
Selected format:Silica refractory bricks
WITHDRAWN published on 17.12.2001
Selected format:Silica refractory bricks
WITHDRAWN published on 5.11.2012
Selected format:Roll-forming rectangle steel tube for tower crane
WITHDRAWN published on 10.1.2011
Selected format:Ductile iron pipes,fittings and accessories for sewage applications
WITHDRAWN published on 10.1.2011
Selected format:Determination for Copper() octaalkoxyl-substituted phthalocyanine on graphite surface (scanning tunneling microscope)
WITHDRAWN published on 10.1.2011
Selected format:Guidelines for instruction of marine diesel engines
WITHDRAWN published on 10.1.2011
Selected format:Object lens for microscopes series
WITHDRAWN published on 1.1.1981
Selected format:Latest update: 2026-04-19 (Number of items: 2 274 482)
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