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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
Metallic and other inorganic coatings-Post-coating treatments of iron or steel to reduce the risk of hydrogen embrittlement
WITHDRAWN published on 29.10.2003
Selected format:Vitreous and porcelain enamels-Corrosion tests in closed systems
WITHDRAWN published on 29.10.2003
Selected format:Protection against corrosion of iron and steel in structures—Zinc and aluminum coatings-Guidelines
WITHDRAWN published on 29.10.2003
Selected format:Classification of packaging machinery
WITHDRAWN published on 5.11.2003
Selected format:Safety code for inspection of packaging of dangerous goods transported by rail—General specifications
WITHDRAWN published on 5.11.2003
Selected format:Safety code for the inspection of packaging of dangerous goods transported by rail—Performance inspection
WITHDRAWN published on 5.11.2003
Selected format:Safety code for the inspection of packaging of dangerous goods transported by rail—Use appraisal
WITHDRAWN published on 5.11.2003
Selected format:Method of testing in bending strength of wood
WITHDRAWN published on 3.5.1991
Selected format:Method of testing in bending strength of wood
WITHDRAWN published on 23.2.2009
Selected format:Method for determination of the modulus of elasticity in static bending of wood
WITHDRAWN published on 3.5.1991
Selected format:Latest update: 2025-08-27 (Number of items: 2 213 396)
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