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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
High strength low alloy structural steels
WITHDRAWN published on 6.12.2008
Selected format:Monitoring and testing method for energy saving of heat transmission and distribution system
WITHDRAWN published on 20.12.1995
Selected format:Monitoring and testing method for energy saving of electroheat device in industry
WITHDRAWN published on 20.12.1995
Selected format:Monitoring and testing method for energy saving of single—stage reciprocating refrigerating unit and its refrigeration system
WITHDRAWN published on 20.12.1995
Selected format:Monitoring and testing method for energy saving of fan unit and distribution tube system
WITHDRAWN published on 20.12.1995
Selected format:Monitoring and testing for energy saving of fan’s unit and distribute tube system
WITHDRAWN published on 30.10.2009
Selected format:Monitoring and testing method for energy saving of steam heating equipments
WITHDRAWN published on 20.12.1995
Selected format:Paking containers—Caustic alkali steel drum
WITHDRAWN published on 20.12.1995
Selected format:Surface active agents—Determination of chelating agent content—Titrimetric method
WITHDRAWN published on 20.12.1995
Selected format:Dysprosium and dysprosium oxide—Determination of gadolinium oxide, terbium oxide, holmium oxide, erbium oxide and yttrium oxide contents—Emission spectrographic method
WITHDRAWN published on 20.12.1995
Selected format:Latest update: 2025-11-10 (Number of items: 2 243 715)
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