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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
Powder metallurgy—Vocabulary
WITHDRAWN published on 15.7.1998
Selected format:Technical requirements of superfine ruthenium dioxide hydrate powder
WITHDRAWN published on 21.2.1983
Selected format:Chromium molybdenum alloy steel plate for hydrogen service equipment
WITHDRAWN published on 14.5.2018
Selected format:Technical requirements of super fine palladium oxide powder
WITHDRAWN published on 21.2.1983
Selected format:Additive manufacturing—Process categories and feedstock
WITHDRAWN published on 14.5.2018
Selected format:Technical requirements of yttrium oxide of phosphor grade for colour TV sets
WITHDRAWN published on 1.1.1983
Selected format:Yttrium oxide
WITHDRAWN published on 15.9.1993
Selected format:Yttrium oxide
WITHDRAWN published on 13.4.2006
Selected format:Europium oxide phosphor grade
WITHDRAWN published on 9.7.1992
Selected format:Europium oxide
WITHDRAWN published on 13.4.2006
Selected format:Latest update: 2026-01-21 (Number of items: 2 257 297)
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