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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
Sea-going merchant ships--Classification of main general performance level
WITHDRAWN published on 1.1.1989
Selected format:Metal valves for use in marine flanged pipe systems—Face-to-face and centre-to-face dimensions
WITHDRAWN published on 14.10.1989
Selected format:Small craft--Inboard engine-propeller shaft ends and bosses
WITHDRAWN published on 1.1.1989
Selected format:Small craft with inboard engine—Propeller shaft ends and bosses with 1:10 taper
WITHDRAWN published on 29.9.2003
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Standard for earthquake-resistant evaluation of industrial constructional structures
WITHDRAWN published on 13.6.1988
Selected format:Small craft--Marine propulsion engines and system-power measurements and declarations
WITHDRAWN published on 1.1.1989
Selected format:Small craft—Marine propulsion engines and systems—Power measurements and declarations
WITHDRAWN published on 29.9.2003
Selected format:The general rules for marine accommodation ladders
WITHDRAWN published on 14.10.1989
Selected format:Small craft--Waste water fittings
WITHDRAWN published on 14.10.1989
Selected format:Latest update: 2025-11-13 (Number of items: 2 243 644)
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