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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
Ship coatings—Determination of resistance to salt water—Salt water and hot salt water immersion method
WITHDRAWN published on 31.3.1989
Selected format:Terminology of marine machinery--Transmission gear and shafting
WITHDRAWN published on 1.1.1989
Selected format:Specification for marine incinerators
WITHDRAWN published on 31.3.1989
Selected format:Ships and marine technology—Shipboard incinerators—Requirements
WITHDRAWN published on 19.6.2008
Selected format:Performance testing methods for the marine auxiliary boiler burners
WITHDRAWN published on 1.1.1989
Selected format:Movable marine hydraulic filtration device
WITHDRAWN published on 1.1.1989
Selected format:Partially enclosed lifeboat type and basic parameters
WITHDRAWN published on 1.1.1989
Selected format:Watertight hydraulic sliding door for ship
WITHDRAWN published on 1.1.1989
Selected format:Shapes for ships
WITHDRAWN published on 31.3.1989
Selected format:Marine shapes
WITHDRAWN published on 14.2.2008
Selected format:Latest update: 2026-04-05 (Number of items: 2 271 011)
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