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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
The General Immunity requirements for telecommunication equipment
WITHDRAWN published on 15.9.2003
Selected format:Methods of measurement of density, resistivity and stacking factor of electrical steel sheet and strip
WITHDRAWN published on 12.9.2003
Selected format:Method of sample logs sawing and test specimens selection for physical and mechanical tests of wood
WITHDRAWN published on 3.5.1991
Selected format:Method of sample logs sawing and test specimens selection for physical and mechanical tests of wood
WITHDRAWN published on 23.2.2009
Selected format:Corrosion of metals and alloys—Corrosivity of atmospheres—Classification
WITHDRAWN published on 12.9.2003
Selected format:Corrosion of metals and alloys—Corrosivity of atmospheres—Guiding values for the corrosivity categories
WITHDRAWN published on 12.9.2003
Selected format:Corrosion of metals and alloys—Corrosivity of atmospheres—Measurement of pollution
WITHDRAWN published on 12.9.2003
Selected format:Corrosion of metals and alloys—Corrosivity of atmospheres—Determination of corrosion rate of standard specimens for the evaluation of corrosivity
WITHDRAWN published on 12.9.2003
Selected format:Hygienic standard for quick-frozen and pre-packed food made of wheat flour and rice
WITHDRAWN published on 24.9.2003
Selected format:Frozen pastry products of national food safety standards
WITHDRAWN published on 21.11.2011
Selected format:Latest update: 2025-08-27 (Number of items: 2 213 396)
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