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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
Measuring methods for field-effect transistors
WITHDRAWN published on 1.1.1984
Selected format:Measuring methods for bipolar transistors
WITHDRAWN published on 1.1.1984
Selected format:Semiconductor discrete devices and integrated circuits—Part 7:Bipolar transistors
WITHDRAWN published on 30.12.1994
Selected format:Specification for single and double sided printed boards with plain holes
WITHDRAWN published on 1.1.1984
Selected format:Sectional specification:single and doublesided printed boards with plain holes
WITHDRAWN published on 31.3.1996
Selected format:Specification for single and double sided printed boards with plated-through holes
WITHDRAWN published on 1.1.1984
Selected format:Sectional specification:single and doublesided printed boards with plated-through holes
WITHDRAWN published on 31.3.1996
Selected format:Design and use of printed boards
WITHDRAWN published on 1.1.1988
Selected format:Specification for multilayer printed boards
WITHDRAWN published on 1.1.1988
Selected format:Sectional specification—Multilayer printed boards
WITHDRAWN published on 30.12.1996
Selected format:Latest update: 2026-11-05 (Number of items: 2 209 078)
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