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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
Graduation of building physical performances for steel windows
WITHDRAWN published on 28.9.1992
Selected format:Graduation and test methods of resisting wind pressure capacity for building external doors
WITHDRAWN published on 28.9.1992
Selected format:Graduation and test methods of air permeability and water penetration for building external doors
WITHDRAWN published on 28.9.1992
Selected format:General requirements for preliminary mineral exploration
WITHDRAWN published on 28.9.1992
Selected format:General requirements for detailed mineral exploration
WITHDRAWN published on 28.9.1992
Selected format:Industrial circulating cooling water—Determination of copper—Sodium diethyldithiocarbamate spectrophotometric method
WITHDRAWN published on 28.9.1992
Selected format:Classification and labels of dangerous chemical substances commonly used
WITHDRAWN published on 28.9.1992
Selected format:General rule for classification and hazard communication of chemicals
WITHDRAWN published on 21.6.2009
Selected format:Safety code for the dust protecting technique of the ceramic production
WITHDRAWN published on 28.9.1992
Selected format:Geological instruction of barite witherite deposit exploration
WITHDRAWN published on 28.9.1992
Selected format:Latest update: 2026-06-16 (Number of items: 2 283 261)
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