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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
Prestressed concrete ribbed roof slabs
WITHDRAWN published on 19.1.1997
Selected format:Graduation and test method for thermal insulating properties of doors
WITHDRAWN published on 19.1.1997
Selected format:Determination of the surface colour of plasticizer (Iodine colorimetry)
WITHDRAWN published on 1.1.1981
Selected format:The graduation of air-borne sound insulating properties and test method for door
WITHDRAWN published on 19.1.1997
Selected format:The gradation of sound absorption property for absorbent products
WITHDRAWN published on 19.1.1997
Selected format:Units and symbols of heating ventilation air conditioning and air cleaning equipment in building
WITHDRAWN published on 22.1.1997
Selected format:Road vehicles--Vehicle identification number(VIN)--Location and attachment
WITHDRAWN published on 21.2.1997
Selected format:Road vehicle-Vehicle Identification Number(VIN)
WITHDRAWN published on 21.6.2004
Selected format:Road vehicles--Vehicle identification number(VIN)--Content and structure
WITHDRAWN published on 21.2.1997
Selected format:Road vehicles--World manufacturer identifier(WMI)code
WITHDRAWN published on 21.2.1997
Selected format:Latest update: 2025-11-11 (Number of items: 2 243 547)
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