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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
Geotextiles and geotextile-related products—Determination of the characteristic opening size—Wet sieving method
WITHDRAWN published on 24.12.1998
Selected format:Geosynthetics—Synthetic staple fibers needlepunched nonwoven geotextiles
WITHDRAWN published on 24.12.1998
Selected format:Geosynthetics—Synthetic filament spunbonded and needlepunched nonwoven geotextiles
WITHDRAWN published on 24.12.1998
Selected format:Geosynthetics—Synthetic filament spunbond and needlepunched nonwoven geotextiles
WITHDRAWN published on 6.8.2008
Selected format:Method of test for measurement of dry film thickness ofpaints
WITHDRAWN published on 15.9.1979
Selected format:Geosynthetics—Synthetic filament woven geotextiles
WITHDRAWN published on 24.12.1998
Selected format:Geosynthetics—Synthetic filament woven geotextiles
WITHDRAWN published on 6.8.2008
Selected format:Geosynthetics—Slit and split film yarn woven geotextiles
WITHDRAWN published on 24.12.1998
Selected format:Geosynthetics—Geocomposites made of geononwoven and geomembrance
WITHDRAWN published on 24.12.1998
Selected format:Geosynthetics - Geocomposites made of geononwoven and geomembrance
WITHDRAWN published on 6.8.2008
Selected format:Latest update: 2026-04-27 (Number of items: 2 274 955)
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