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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
Tabular layouts of article characteristics--Iron and steel products
WITHDRAWN published on 12.10.1989
Selected format:Tabular layouts of article characteristics--Shapes and dimensions of ferrous and non-ferrous products
WITHDRAWN published on 1.1.1989
Selected format:Tabular layouts of article characteristics--Shapes and dimensions of ferrous and non-ferrous products
WITHDRAWN published on 12.10.1989
Selected format:Tabular layouts of article characteristics--Non-ferrous products
WITHDRAWN published on 1.1.1989
Selected format:Tabular layouts of article characteristics--Non-ferrous products
WITHDRAWN published on 12.10.1989
Selected format:Multiple comparison for test results
WITHDRAWN published on 10.12.1988
Selected format:Probabilistic limit states design (Normal-Normal mode)
WITHDRAWN published on 10.12.1988
Selected format:The confidence interval of quantile Xp for normal distribution
WITHDRAWN published on 10.12.1988
Selected format:Accuracy of involute cylindrical gears
WITHDRAWN published on 1.1.1988
Selected format:Cylindrical gears—system of accuracy—Part 1:Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth
WITHDRAWN published on 17.12.2001
Selected format:Latest update: 2026-04-13 (Number of items: 2 271 498)
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