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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
Coniferous processing logs--Grade classification
WITHDRAWN published on 1.1.1984
Selected format:Determination of sulfur content in carbon materials
WITHDRAWN published on 29.9.1978
Selected format:Straight flute drill with indexable inserts
WITHDRAWN published on 17.4.1993
Selected format:Solid carbide slitting cutters
WITHDRAWN published on 17.4.1993
Selected format:shaping machines—Testing of the accuracy
WITHDRAWN published on 17.4.1993
Selected format:Woodworking machines—Single blade universal circular saw bench with or without travelling table—Accuracy tests
WITHDRAWN published on 17.4.1993
Selected format:Sizes for woollen garments
WITHDRAWN published on 20.4.1993
Selected format:Sizes for woollen garments
WITHDRAWN published on 5.9.2002
Selected format:Sizes for wollen suits
WITHDRAWN published on 18.6.2008
Selected format:Chemical reagent—Cyclohexane
WITHDRAWN published on 1.3.1993
Selected format:Latest update: 2026-07-28 (Number of items: 2 290 396)
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