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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
Specifications for ships""fire-resistant windows
WITHDRAWN published on 20.7.1998
Selected format:Specifications for marine fire-resistant windows
WITHDRAWN published on 14.2.2008
Selected format:Design and installation of electrolysis of seawater anti-fouling system for ship
WITHDRAWN published on 24.7.1998
Selected format:Selection of explosion proof electrical equipment in ship hazardous areas
WITHDRAWN published on 24.7.1998
Selected format:Procedures for calibrating and determining the response of neutron-measuring devices used for radiation protection purposes
WITHDRAWN published on 30.7.1998
Selected format:Specification for transmission of component-coded digital television signals for contribution-quality applications at the third hierarchical level
WITHDRAWN published on 24.7.1998
Selected format:-
WITHDRAWN published on 1.1.1979
Selected format:Safety regulations for the protection of dust explosion for grain processing, storage and transportation system
WITHDRAWN published on 28.7.1998
Selected format:Safety regulations for the protection of dust expolsion for grain processing,storage and transportation system
WITHDRAWN published on 11.12.2008
Selected format:Symbols for alternating-current electricity meters
WITHDRAWN published on 28.7.1998
Selected format:Latest update: 2026-06-21 (Number of items: 2 283 476)
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