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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
General rule of chemical analysis for hydrogen, oxygen, nitrogen, carbon and sulfur in metal""s materials
WITHDRAWN published on 12.3.1993
Selected format:Blanks for carbide rotary burs
WITHDRAWN published on 20.3.1993
Selected format:Short range electro-optic distance-measuring instrument
WITHDRAWN published on 2.4.1993
Selected format:Revision survey specifications for the national primary scale topographic maps
WITHDRAWN published on 2.4.1993
Selected format:The sampling methods for wool testing
WITHDRAWN published on 2.4.1993
Selected format:Sampling methods for wool testing
WITHDRAWN published on 20.8.2008
Selected format:Sample method of carbon material
WITHDRAWN published on 11.4.2000
Selected format:Test method for determination of wool fibre type content
WITHDRAWN published on 2.4.1993
Selected format:Test method for wool content of raw wool by oil pressure method
WITHDRAWN published on 2.4.1993
Selected format:Test method for the determination of scoured yield raw wool—Oil pressure method
WITHDRAWN published on 20.8.2008
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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