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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
Appraisal criteria for antiseismic outdoor water supply and drainage tacilities
WITHDRAWN published on 30.3.1982
Selected format:Test methods of water-proof property for printed and dyed fabrics
WITHDRAWN published on 20.6.1978
Selected format:General specification for marine gyrocompasses
WITHDRAWN published on 1.1.1984
Selected format:General specifications for marine gyrocompasses
WITHDRAWN published on 19.7.1994
Selected format:General specification for marine electromagnetic logs
WITHDRAWN published on 30.3.1992
Selected format:Life buoys
WITHDRAWN published on 4.4.1984
Selected format:Lifejackets for ships
WITHDRAWN published on 4.4.1984
Selected format:Marine lifejacket
WITHDRAWN published on 10.11.2008
Selected format:Work life jackets for ships
WITHDRAWN published on 1.1.1984
Selected format:Series of navigation magnetic compass
WITHDRAWN published on 1.1.1984
Selected format:Latest update: 2025-10-15 (Number of items: 2 238 420)
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