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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
Non-destructive testing-Industrial radiographic films—Part 2:Control of film processing by means of reference values
WITHDRAWN published on 29.10.2003
Selected format:Metallic and other inorganic coatings-Pretreatment of iron or steel to reduce the risk of hydrogen embrittlement
WITHDRAWN published on 29.10.2003
Selected format:Method of testing in compressive strength parallel to grain of wood
WITHDRAWN published on 3.5.1991
Selected format:Method of testing in compressive strength parallel to grain of wood
WITHDRAWN published on 23.2.2009
Selected format: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WITHDRAWN published on 29.10.2003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:Thermal spraying--Quality requirements of thermally sprayed structures--Part 1:Guidance for selection and use
WITHDRAWN published on 29.10.2003
Selected format:Thermal spraying--Quality requirements of thermally sprayed structures--Part 2:Comprehensive quality requirements
WITHDRAWN published on 29.10.2003
Selected format:Thermal spraying--Quality requirements of thermally sprayed structures--Part 3:Standard qualityrequirements
WITHDRAWN published on 29.10.2003
Selected format:Thermal spraying--Quality requirements of thermally sprayed structures--Part 4:Elementary quality requirements
WITHDRAWN published on 29.10.2003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WITHDRAWN published on 29.10.2003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:Latest update: 2026-06-10 (Number of items: 2 281 585)
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