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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
Cyclopentane for industrial use
WITHDRAWN published on 6.9.2002
Selected format:1,1,1,2—Tetrafluoroethane for industrial use
WITHDRAWN published on 6.9.2002
Selected format:Diver""s watches
WITHDRAWN published on 5.9.2002
Selected format:Divers""watches
WITHDRAWN published on 17.12.2013
Selected format:Reciprocating internal combustion engines--Terminology
WITHDRAWN published on 31.3.1989
Selected format:Textiles—Evaluation for solar ultraviolet radiation protective properties
WITHDRAWN published on 5.9.2002
Selected format:Safety of machinery—Interlocking devices associated with guards—Principles for design and selection
WITHDRAWN published on 11.10.2002
Selected format:Safety of machinery—Interlocking devices associated with guards—Principles for design and selection
WITHDRAWN published on 9.8.2010
Selected format:Retro-reflective sheeting for road traffic signs
WITHDRAWN published on 11.9.2002
Selected format:Ducted air-conditioning(heat pump) units
WITHDRAWN published on 11.9.2002
Selected format:Latest update: 2025-07-06 (Number of items: 2 207 474)
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