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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
The technical specifications of turbochargers used for marine diesel engines
WITHDRAWN published on 30.3.1992
Selected format:Technical requirements for marine controllable pitch propellers
WITHDRAWN published on 30.3.1992
Selected format:Specification of rowing kayak canoe and theirs accessories
WITHDRAWN published on 30.3.1992
Selected format:General terminology for ships--Ship system
WITHDRAWN published on 30.3.1992
Selected format:Marine exhaust gas boiler specification
WITHDRAWN published on 30.3.1992
Selected format:Mixers, radio frequency, general specification for
WITHDRAWN published on 3.4.1992
Selected format:Switches(coaxial), RF transmission line, general specification for
WITHDRAWN published on 3.4.1992
Selected format:Contents list for scientific and technical periodicals
WITHDRAWN published on 13.4.1992
Selected format:Electromechanical switches for use in electronic equipment Part 6:Sectional specification for sensitive switches
WITHDRAWN published on 2.11.1998
Selected format:Electromechanical switches for use in electronic equipment Part 6:Sectional specification for sensitive switches Section 1:Blank detail specification
WITHDRAWN published on 2.11.1998
Selected format:Latest update: 2026-06-18 (Number of items: 2 283 376)
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