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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
Buried polyethylene (PE) piping systems for the supply of gaseous fuels—Part 2:Fittings
WITHDRAWN published on 17.5.2005
Selected format:Buried polyethylene(PE)piping systems for the supply of gaseous fuels—Part 3:Valves
WITHDRAWN published on 15.12.2008
Selected format:Food additive—Hang Zhou chrysanthemum flower extract
WITHDRAWN published on 2.5.1995
Selected format:-
WITHDRAWN published on 1.1.1979
Selected format:Electronic static rail weighbridge
WITHDRAWN published on 5.5.1995
Selected format:Electronic static rail weighbridge
WITHDRAWN published on 30.12.2008
Selected format:Seismic explosive columns
WITHDRAWN published on 15.5.1995
Selected format:Seismic charge
WITHDRAWN published on 6.9.2005
Selected format:Code of Chinese indeogram set for teletext broadcasting HongKong subset
WITHDRAWN published on 8.5.1995
Selected format:Graphical symbol—Terms
WITHDRAWN published on 19.5.1995
Selected format:Latest update: 2026-01-20 (Number of items: 2 257 233)
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