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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
Fry and fingerling of bluntnoseblack bream
WITHDRAWN published on 29.9.2006
Selected format:Frozen silver fish
WITHDRAWN published on 1.1.1988
Selected format:Basic parameters for diffraction grating
WITHDRAWN published on 1.1.1988
Selected format:Specification for diffraction grating
WITHDRAWN published on 1.1.1988
Selected format:-
WITHDRAWN published on 1.1.1988
Selected format:Measurement of the luminance factor of a reflective projection screen
WITHDRAWN published on 1.1.1988
Selected format:Measurement of the effective scattering angle of a reflective projection screen
WITHDRAWN published on 1.1.1988
Selected format:The air-bag type sequential external counter-pulsation device
WITHDRAWN published on 6.7.1994
Selected format:Air-bag type sequential external counter-pulsation device
WITHDRAWN published on 13.3.2006
Selected format:Upper gastro intestinal fiberscope
WITHDRAWN published on 1.1.1988
Selected format:Latest update: 2026-10-05 (Number of items: 2 304 304)
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