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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
Information technology equipment—Radio disturbance characteristics—Limits and methods of measurement
WITHDRAWN published on 14.12.1998
Selected format:Information technology equipment—Radio disturbance characteristics—Limits and methods of measurement
WITHDRAWN published on 6.8.2008
Selected format:Chemical analysis methods of boron carbide
WITHDRAWN published on 1.1.1988
Selected format:Chemical analysis methods of cubic boron nitride
WITHDRAWN published on 1.1.1988
Selected format:Chemical analysis methods of black fused alumina
WITHDRAWN published on 1.1.1988
Selected format:-
WITHDRAWN published on 1.1.1988
Selected format:Coated abrasives—Grain size analysis—Part 2:Determination of grain size distribution of macrogrits P12 to P220
WITHDRAWN published on 18.2.2000
Selected format:Coated abrasives—Grain size analysis—Part 3:Determination of grain size distribution of microgrits P240 to P2500
WITHDRAWN published on 18.2.2000
Selected format:Terminology of emission spectrochemical analysis
WITHDRAWN published on 17.5.1988
Selected format:General specification for boottopping paint on ships
WITHDRAWN published on 4.6.1988
Selected format:Latest update: 2026-03-13 (Number of items: 2 266 261)
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