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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
Gases for electronic industry - Boron trifluoride
WITHDRAWN published on 30.10.2009
Selected format:Gases for electronic industry—Oxygen
WITHDRAWN published on 26.8.1993
Selected format:Gas for electronic industry - Oxygen
WITHDRAWN published on 30.10.2009
Selected format:Determination of trace argon, nitrogen and krypton in oxygen—Gas chromatographic method
WITHDRAWN published on 26.8.1993
Selected format:Determination of total hydrocarbon in gases. Flameion method
WITHDRAWN published on 1.1.1993
Selected format:Method for determination of dry gluten in flour
WITHDRAWN published on 5.9.1993
Selected format:Method for determination of wet gluten in flour
WITHDRAWN published on 5.9.1993
Selected format:Method for determination of Cu, Fe, Mn, Zn, Ca, Mg in cereals by atomic absorption spectrophotometry
WITHDRAWN published on 5.9.1993
Selected format:Inspection of grain and oils—Determination of copper,iron,manganese,zinc,calcium,magnesium in cereals and derived products by atomic absorption and flame spectrophotometry
WITHDRAWN published on 4.11.2008
Selected format:Test method for interlaminar shear strength of ring of filament-winding reinforced plastics
WITHDRAWN published on 20.9.1988
Selected format:Latest update: 2026-06-09 (Number of items: 2 281 484)
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