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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
Measurement method for exhaust gas smoke of marine diesel engine
WITHDRAWN published on 26.12.1985
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Filling connection for drinking water tanks on ships
WITHDRAWN published on 15.4.1999
Selected format:General specifications of autopilot
WITHDRAWN published on 1.1.1985
Selected format:General technical specifications of the marine autopilot
WITHDRAWN published on 19.7.1994
Selected format:Marine autopilot
WITHDRAWN published on 2.9.2010
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Quick shutting valve for marine use
WITHDRAWN published on 21.7.1993
Selected format:Marine quick-closing valves
WITHDRAWN published on 14.2.2008
Selected format:Marine disc separator
WITHDRAWN published on 1.1.1996
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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