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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
Copper clad aluminum plate,sheets and strips
WITHDRAWN published on 31.12.2015
Selected format:Aluminum and aluminum alloys--Inspection method of microstructure for wrought products
WITHDRAWN published on 1.1.1982
Selected format:Organic compounds in drinking water—Test methods of geosmin and 2-methylisoborneol
WITHDRAWN published on 14.6.2016
Selected format:Determining method of resistivity of copper, nickel and their alloys
WITHDRAWN published on 21.6.1982
Selected format:LED—Binning—Part 1:General requirements and white colour grid
WITHDRAWN published on 24.2.2016
Selected format:Energy performance of lamp controlgear—Part 1: Controlgear for fluorescent lamps—Method of measurement to determine the total input power of controlgear circuits and the efficiency of the controlgear
WITHDRAWN published on 25.4.2016
Selected format:Energy performance of lamp controlgear—Part 2: Controlgear for high intensity discharge lamps (excluding fluorescent lamps)—Method of measurement to determine the efficiency of controlgear
WITHDRAWN published on 26.11.2021
Selected format:Energy performance of lamp controlgear—Part 3: Controlgear for halogen lamps and LED modules—Method of measurement to determine the efficiency of the controlgear
WITHDRAWN published on 24.2.2016
Selected format:Watch-cases and accessories—Vapour phase deposited coatings
WITHDRAWN published on 24.2.2016
Selected format:Standard method for determination of particle size of powders of refractory metals and compounds—Fisher method
WITHDRAWN published on 21.6.1982
Selected format:Latest update: 2026-03-29 (Number of items: 2 269 691)
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