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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
Minimum allowable values of energy efficiency and values of efficiency grade for small-power motors
WITHDRAWN published on 10.1.2011
Selected format:Tungsten powder and tungsten carbide powder—Determination of specific surface product (average grainine- ss—Simplified nitrogen absorption method
WITHDRAWN published on 7.6.1981
Selected format:Determination of aromatic hydrocarbon types in middle distillates containing fatty acid methyl esters—High performance liquid chromatography method with refractive index detection
WITHDRAWN published on 10.1.2011
Selected format:Hot rolled window frame steel
WITHDRAWN published on 1.1.1981
Selected format:Heat-rolled window sash steel
WITHDRAWN published on 22.12.1994
Selected format:Gas fire extinguishing systems and components
WITHDRAWN published on 10.1.2011
Selected format:Rock wool products for exterior insulation and finish systems(EIFS)
WITHDRAWN published on 10.1.2011
Selected format:Snow blower
WITHDRAWN published on 10.1.2011
Selected format:Road vehicle—Plate and label
WITHDRAWN published on 10.1.2011
Selected format:Guardrail cleanout vehicle
WITHDRAWN published on 10.1.2011
Selected format:Latest update: 2026-04-19 (Number of items: 2 274 482)
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