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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
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WITHDRAWN published on 1.1.1989
Selected format:Geometrical product Specifications(GPS)—Surface texture:Profile method—Rules and procedures for the assessment of surface texture
WITHDRAWN published on 28.8.1998
Selected format:Wire screens and plate screens for industrial purposes--Nominal size of spertures
WITHDRAWN published on 22.3.1989
Selected format:Round and square perforation plate screens--Thickness of below 3mm
WITHDRAWN published on 22.3.1989
Selected format:Round and square perforation plate screens--Thickness of 3 mm and above
WITHDRAWN published on 22.3.1989
Selected format:Resilient coupling with core element
WITHDRAWN published on 22.3.1989
Selected format:Food additive--Propionic acid
WITHDRAWN published on 1.1.1989
Selected format:Food additive—Propylene glycol alginate
WITHDRAWN published on 22.3.1989
Selected format:Food additive-Propylene glycol alginate
WITHDRAWN published on 9.4.2004
Selected format:Food additive Sucrose fatly acid ester (method of propylene glycol)
WITHDRAWN published on 22.3.1989
Selected format:Latest update: 2026-04-06 (Number of items: 2 271 069)
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