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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
Hot-dip lead-tin alloy coated cold rolled carbon steel sheets and strips
WITHDRAWN published on 24.3.2004
Selected format:Single hot-dip zinc-coated carbon steel sheets
WITHDRAWN published on 1.1.1985
Selected format:Alloy structural steel sheets
WITHDRAWN published on 1.1.1985
Selected format:Axles steel for railway locomotive and wagons
WITHDRAWN published on 23.11.1999
Selected format:Chemical analysis of magnesia-alumina refractories
WITHDRAWN published on 18.4.2007
Selected format:Chemical analysis of magnesia-alumina refractories
WITHDRAWN published on 10.12.2015
Selected format:Chemical analysis of magnesia-alumina refractories
WITHDRAWN published on 10.12.2015
Selected format:Magnesite refractories--Determination of loss content on ignition--Gravimetric method
WITHDRAWN published on 1.1.1985
Selected format:Chemical analysis of magnesia and magnesia-alumina refractory materials—Gravimetric method for determination of loss on ignition
WITHDRAWN published on 7.12.2001
Selected format:Magnesite refractories--Determination of manganese oxide content--Atomic absorption spectrophotometric method
WITHDRAWN published on 1.1.1985
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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