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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
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WITHDRAWN published on 1.1.1984
Selected format:Misch metal
WITHDRAWN published on 15.9.1993
Selected format:-
WITHDRAWN published on 1.1.1984
Selected format:Lanthanum oxide
WITHDRAWN published on 15.9.1993
Selected format:Lanthanum oxide
WITHDRAWN published on 13.4.2006
Selected format:Cerium oxide
WITHDRAWN published on 9.7.1992
Selected format:Cerium oxide
WITHDRAWN published on 18.11.2003
Selected format:Metals—Cupping testing method (thickness 0.2~2mm)
WITHDRAWN published on 24.2.1984
Selected format:Metallic materials—Sheet and strip—Erichsen cupping test
WITHDRAWN published on 14.8.2007
Selected format:Sustained load tensile test method of metals for resistance to sulfide stress corrosion cracking
WITHDRAWN published on 24.2.1984
Selected format:Latest update: 2025-11-09 (Number of items: 2 243 571)
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