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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
Method for chemical analysis of graphite
WITHDRAWN published on 1.1.1983
Selected format:Method for chemical analysis of graphite
WITHDRAWN published on 7.2.1995
Selected format:Method for chemical analysis of graphite
WITHDRAWN published on 20.8.2008
Selected format:Determination methods of methane isothermal adsorption in shale—Part 1:Capacity method
WITHDRAWN published on 29.12.2017
Selected format:Testing method of seed moisture for cereal and oil crop
WITHDRAWN published on 1.1.1983
Selected format:-
WITHDRAWN published on 1.1.1983
Selected format:Hot-rolled cardon and low alloy structural steel strips
WITHDRAWN published on 16.11.1992
Selected format:Hot-rolled carbon and low alloy structural steel strips
WITHDRAWN published on 21.7.2005
Selected format:Cold-rolled spring and tool steel strips
WITHDRAWN published on 1.1.1983
Selected format:Cold-rolled low carbon steel strips
WITHDRAWN published on 1.1.1983
Selected format:Latest update: 2025-12-21 (Number of items: 2 252 887)
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