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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
Dentistry—Designation system for teeth and areas of the oral cavity
WITHDRAWN published on 20.9.1988
Selected format:Oil-changing criterion for turbine oil used in synthetic fibre and fertilizer industries
WITHDRAWN published on 1.1.1988
Selected format:-
WITHDRAWN published on 1.1.1977
Selected format:Screw thread belt tighteners for type TD belt conveyor--Specifications
WITHDRAWN published on 13.9.1977
Selected format:Oil-changing criterion for anti-ammonia turbine oil in use
WITHDRAWN published on 1.1.1988
Selected format:High speed tool steel sheets and plates—Technical requirements
WITHDRAWN published on 20.9.1988
Selected format:High speed tool steel sheets and plates
WITHDRAWN published on 30.10.2009
Selected format:High speed tool steel forged bars with large section—Technical requirements
WITHDRAWN published on 20.9.1988
Selected format:High speed tool steel bars—Technical requirements
WITHDRAWN published on 20.9.1988
Selected format:High-speed tool steels
WITHDRAWN published on 13.5.2008
Selected format:Latest update: 2026-06-18 (Number of items: 2 283 376)
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