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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
Cold-reduced electrolytic chromium/chromium oxide coated steel sheet and strip
WITHDRAWN published on 25.6.2009
Selected format:Steels for diamond welded saw blades
WITHDRAWN published on 25.6.2009
Selected format:Metallic materials—Earing test
WITHDRAWN published on 25.6.2009
Selected format:high calcium hot melt slag after desulphurization for sintering flux
WITHDRAWN published on 25.6.2009
Selected format:High strength abrasion resistant steel plates for construction machine
WITHDRAWN published on 25.6.2009
Selected format:Cold-drawn precision single welded steel tubes
WITHDRAWN published on 25.6.2009
Selected format:Iron ores for blast furnace feedstocks—Determination of the reducibility by the final degree of reduction index
WITHDRAWN published on 8.7.2009
Selected format:Test method for fluidity of mastic cement
WITHDRAWN published on 1.1.1981
Selected format:Test method for fluidity of cement mortar
WITHDRAWN published on 24.9.1994
Selected format:Ferrosilicon—Determination of aluminium,calcium,manganese,chromium,titanium,copper,phosphorus and nickel content—Inductively coupled plasma atomic emission spectrometric method
WITHDRAWN published on 8.7.2009
Selected format:Latest update: 2026-04-08 (Number of items: 2 271 105)
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