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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
Landing mats
WITHDRAWN published on 1.1.1987
Selected format:Free exercise floor
WITHDRAWN published on 1.1.1987
Selected format:(CHINESE NATIONAL STANDARD)
WITHDRAWN published on 1.1.1985
Selected format:Square set screws with cup point
WITHDRAWN published on 24.6.1988
Selected format:Rubber covered disks
WITHDRAWN published on 1.1.1987
Selected format:Measuring methods for transmission and optical characteristics of optical fibers--General
WITHDRAWN published on 1.1.1987
Selected format:Measuring methods for transmission and optical characteristics of optical fibres--Near-field technique
WITHDRAWN published on 1.1.1987
Selected format:Measuring methods for transmission and optical characteristics of optical fibres--Far-field technique
WITHDRAWN published on 1.1.1987
Selected format:Measuring methods for transmission and optical characteristics of optical fibres--Transmited power technique
WITHDRAWN published on 1.1.1987
Selected format:Measuring methods for transmission and optical characteristics of optical fibres--The mode field diameter versus wavelength technique
WITHDRAWN published on 1.1.1987
Selected format:Latest update: 2026-03-20 (Number of items: 2 268 518)
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