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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
Method of determination of cleanliness for marine diesel engines
WITHDRAWN published on 1.1.1989
Selected format:General specifications of marine rate-of-turn indicators
WITHDRAWN published on 2.12.1989
Selected format:General specifications of follow-up pilot for use in ships
WITHDRAWN published on 2.12.1989
Selected format:-
WITHDRAWN published on 1.1.1989
Selected format:Specification of marine autopilot with gyro compass
WITHDRAWN published on 15.4.1999
Selected format:Marine centrifugal forced draft fans for boiler use
WITHDRAWN published on 1.1.1989
Selected format:Electric prevent winches
WITHDRAWN published on 1.1.1989
Selected format:Textile-reinforced hoses for water suction
WITHDRAWN published on 1.1.1989
Selected format:Large die-blocks used for die-forging hammer and mechanical forging press—Specification
WITHDRAWN published on 2.12.1989
Selected format:Specification of large die-blocks used for die-forging hammer and mechanical forging press
WITHDRAWN published on 6.6.2008
Selected format:Latest update: 2025-11-11 (Number of items: 2 243 547)
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