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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
Chemical reagent—Glycerol
WITHDRAWN published on 23.3.1994
Selected format:Garden tools-Hand saws
WITHDRAWN published on 1.1.1986
Selected format:Health scale
WITHDRAWN published on 1.1.1986
Selected format:Horology-functional and non-functional jewels
WITHDRAWN published on 1.1.1986
Selected format:Dimension series of general screw for wrist watches
WITHDRAWN published on 1.1.1986
Selected format:Dimension series of tapped foot, foot and banking pin for wrist watches
WITHDRAWN published on 1.1.1986
Selected format:Calendar mechanism for clocks
WITHDRAWN published on 1.1.1986
Selected format:Mechanical calendar mechanism for wrist watches --Calendar mechanism for mechanical wrist watches
WITHDRAWN published on 1.1.1986
Selected format:Classification, terminology and numbering for parts and assemblies of the mechanical time measuring instruments Classification, terminology and numbering for parts and assemblies of wrist watches and lever escapement alarm olocks
WITHDRAWN published on 13.9.1986
Selected format:Technical requirements and testing methods for local crossbar telephone switching systems
WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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