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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
Specification for single and double sided printed boards with plain holes
WITHDRAWN published on 1.1.1984
Selected format:Specification for single and double sided printed boards with plated-through holes
WITHDRAWN published on 1.1.1984
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WITHDRAWN published on 1.1.1988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WITHDRAWN published on 1.1.1988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WITHDRAWN published on 30.12.1996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:Semiconductor devices--Generic specification for discrete devices and integrated circuits
WITHDRAWN published on 31.3.1989
Selected format:Paper--Determination of hydro instability
WITHDRAWN published on 31.3.1989
Selected format:Mechanical and climatic test methods for semiconductor integrated circuits
WITHDRAWN published on 1.1.1984
Selected format:Test chart for electrostatic copying process
WITHDRAWN published on 18.2.1992
Selected format:-
WITHDRAWN published on 1.1.1984
Selected format:Latest update: 2025-12-22 (Number of items: 2 253 013)
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