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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
Reclaimed rubbers
WITHDRAWN published on 22.5.2003
Selected format:Reclaimed rubbers
WITHDRAWN published on 12.5.2008
Selected format:Reclaimed rubber—General specification
WITHDRAWN published on 13.10.2016
Selected format:Synthetic resin blow knee prostheses
WITHDRAWN published on 1.6.1992
Selected format:Guides for the power transformers energy saving operation in factories and mines
WITHDRAWN published on 30.5.1992
Selected format:Alcohol resistant foam extinguishing agent
WITHDRAWN published on 1.6.1992
Selected format:Thermal analysis test methods for thermal stability of materials
WITHDRAWN published on 1.6.1992
Selected format:General rules for test methods of mechanical properties of impermeable graphite materials
WITHDRAWN published on 2.6.1992
Selected format:Test method of mechanical properties of impermeable graphite materials—General
WITHDRAWN published on 24.9.2002
Selected format:Test method of impermeable graphite materials—Part 1:General of test method for mechanical properties
WITHDRAWN published on 3.9.2014
Selected format:Latest update: 2026-04-20 (Number of items: 2 274 419)
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