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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
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WITHDRAWN published on 30.12.1996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WITHDRAWN published on 31.3.1989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WITHDRAWN published on 31.3.1989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WITHDRAWN published on 1.1.1984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WITHDRAWN published on 18.2.1992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WITHDRAWN published on 1.1.1984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:Types and specifications for shaft sinking winches
WITHDRAWN published on 27.7.1984
Selected format:Type JTP mine winder
WITHDRAWN published on 1.1.1984
Selected format:Measurement of noise on board vessels
WITHDRAWN published on 28.8.2000
Selected format:E-cores for three-phase transformers for use in electronic equipment
WITHDRAWN published on 21.7.1984
Selected format:Latest update: 2026-01-30 (Number of items: 2 258 069)
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