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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
The specification for marine monitoring Part 4:Seawater analysis
WITHDRAWN published on 22.6.1998
Selected format:The specification for marine monitoring Part 5:Sediment analysis
WITHDRAWN published on 22.6.1998
Selected format:The specification for marine monitoring Part 6:Organisim analysis
WITHDRAWN published on 22.6.1998
Selected format:The specification for marine monitoring Part 7:Ecological survey of offshore pollution and biological monitoring
WITHDRAWN published on 22.6.1998
Selected format:General rule for terminals storage of petroleum in bulk and liquid chemicals in bulk
WITHDRAWN published on 18.5.1998
Selected format:Method of test for water absorption rate of electrical insulating varnish films
WITHDRAWN published on 15.9.1979
Selected format:The regulation for the marking of offshore structures in China
WITHDRAWN published on 18.5.1998
Selected format:The regulation for surface colors of the visual aids to navigation in China
WITHDRAWN published on 18.5.1998
Selected format:Series 1 freight containers-handling and securing
WITHDRAWN published on 18.5.1998
Selected format:Series 1 freight containers—Handling and securing
WITHDRAWN published on 4.8.2008
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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