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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
Anodizing of aluminium and aluminium alloys—Terms
WITHDRAWN published on 31.3.1989
Selected format:-
WITHDRAWN published on 1.1.1981
Selected format:Anodizing of aluminium and its alloys—Determination of quality of sealed anodic oxide coatings—Admittance method
WITHDRAWN published on 31.3.1989
Selected format:Continual determination method of electric resistance for tungsten wires
WITHDRAWN published on 31.3.1989
Selected format:Non-ferrous metals atmospheric corrosion testing method
WITHDRAWN published on 31.3.1989
Selected format:Analytical method for impurities in the synthetic quartz crystal
WITHDRAWN published on 31.3.1989
Selected format:Method for detecting dislocations of synthetic quartz using X-ray topographic technique
WITHDRAWN published on 31.3.1989
Selected format:Low density polyethylene resin
WITHDRAWN published on 31.3.1989
Selected format:High density polyethylene resin
WITHDRAWN published on 31.3.1989
Selected format:Knock test reference fuels--Reference fuel--iso-octane
WITHDRAWN published on 31.3.1989
Selected format:Latest update: 2026-03-02 (Number of items: 2 264 418)
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