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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
Chemical reagent—Potassium bromate
WITHDRAWN published on 1.3.1993
Selected format:Test method for moisture regain of wool—Drying oven method
WITHDRAWN published on 19.6.1986
Selected format:Test method for measure length of the wool fibre—Comb sorter
WITHDRAWN published on 19.6.1986
Selected format:Sampling method for synthetic filament yarns
WITHDRAWN published on 23.5.2001
Selected format:Test method for moisture regain in synthetic filament yarns
WITHDRAWN published on 23.5.2001
Selected format:Testing method for moisture regain of man-made fibres
WITHDRAWN published on 18.6.2008
Selected format:Test method for determination of oil synthetic filament yarns
WITHDRAWN published on 23.5.2001
Selected format:Testing method for oil content of man-made fibres
WITHDRAWN published on 18.6.2008
Selected format:Test method for thermal shrinkage of synthetic filament yarns
WITHDRAWN published on 23.5.2001
Selected format:Testing method for thermal shrinkage of man-made filament yarns
WITHDRAWN published on 18.6.2008
Selected format:Latest update: 2026-06-26 (Number of items: 2 284 409)
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