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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
Series and products of communication circuits for semiconductor integrated circuits--Products of active filters
WITHDRAWN published on 17.12.1992
Selected format:Series and products of communication circuits for semiconductor integrated circuits--Products of PCM coder-decoders
WITHDRAWN published on 17.12.1992
Selected format:Series and products of communication circuits for semiconductor integrated circuits--Products of analogue switch arraies
WITHDRAWN published on 17.12.1992
Selected format:Series and products of communication circuits for semiconductor integrated circuits--Products of dual-tone multi-frequency circuits
WITHDRAWN published on 17.12.1992
Selected format:Series and productsof communication circuits for semiconductor integrated circuits--Products of telephone circuits
WITHDRAWN published on 17.12.1992
Selected format:Series and products of communication circuits for semiconductor integrated circuits--Products offrequency synthesizers
WITHDRAWN published on 17.12.1992
Selected format:Series and products of communication circuits for semiconductor integrated circuits--Products of digital switching system interface circuits
WITHDRAWN published on 17.12.1992
Selected format:General principles of measuring methods of analogue switches for semiconductor integrated circuits
WITHDRAWN published on 18.12.1992
Selected format:Designations of phenolic moulding materials
WITHDRAWN published on 1.1.1986
Selected format:Thrown silk for warp and weft
WITHDRAWN published on 7.8.1992
Selected format:Latest update: 2026-06-15 (Number of items: 2 282 497)
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