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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
Sheet glass-Determination of transmittancy of visible rays
WITHDRAWN published on 1.1.1981
Selected format:Determination of light transmittance, solar direct transmittance, total solar energy transmittance and ultraviolet transmittance for glass in building and related glazing factors
WITHDRAWN published on 30.12.1993
Selected format:Colors of insulated conductors used in electrical assembly devices
WITHDRAWN published on 12.6.1981
Selected format:Information resource core metadata
WITHDRAWN published on 29.7.2011
Selected format:Specification of business credit information reports—Basic credit information report,standard report,indepth report
WITHDRAWN published on 29.7.2011
Selected format:Colors of indicator lights and push-buttons used in electrical assembly devices
WITHDRAWN published on 12.6.1981
Selected format:Nano-alumina
WITHDRAWN published on 29.7.2011
Selected format:Non-destructive testing instruments—Portable industrial X-ray radiographic equipment
WITHDRAWN published on 29.7.2011
Selected format:Electronic commerce - The specification for warehouse receipt trading mode
WITHDRAWN published on 29.7.2011
Selected format:Foundry sands and sand mixtures for casting—Method of testing
WITHDRAWN published on 19.6.1981
Selected format:Latest update: 2026-03-26 (Number of items: 2 269 551)
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