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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
Marine centrifugal backward-curved blade fans
WITHDRAWN published on 2.12.1989
Selected format:Specifications for lifeboats shafting
WITHDRAWN published on 1.1.1989
Selected format:Diesel engine set for lifeboats
WITHDRAWN published on 1.1.1989
Selected format:Diesel engine set for lifeboats
WITHDRAWN published on 25.4.1996
Selected format:Towing winches for deep sea use
WITHDRAWN published on 2.12.1989
Selected format:Towing winches for deep sea use
WITHDRAWN published on 17.7.2007
Selected format:Rubber hose for water supply
WITHDRAWN published on 1.1.1981
Selected format:Vertical planetary gear units for the marine
WITHDRAWN published on 1.1.1989
Selected format:Limits of airborne noise emitted by marine diesel engines
WITHDRAWN published on 2.12.1989
Selected format:Limit of cleanliness for marine diesel engines
WITHDRAWN published on 1.1.1989
Selected format:Latest update: 2025-11-12 (Number of items: 2 243 625)
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