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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
Textile glass chopped-strand mats--Determination of time of dissolution of the binder in styrene
WITHDRAWN published on 1.1.1985
Selected format:Test method for glass mats Part 1:Determination of styrene solubility
WITHDRAWN published on 11.5.2001
Selected format:Test method for glass mats Part 2:Determination of tensile breaking force
WITHDRAWN published on 11.5.2001
Selected format:Test method for glass mats Part 3:Determination of thickness
WITHDRAWN published on 11.5.2001
Selected format:Textile glass--Glass mats--Determination of mass per unit area
WITHDRAWN published on 1.1.1985
Selected format:Disodium hydrogen phosphate
WITHDRAWN published on 1.1.1985
Selected format:Anhydrous sodium sulphate for industrial use
WITHDRAWN published on 1.9.1992
Selected format:Anhydrous sodium sulfate for industrial use
WITHDRAWN published on 25.8.2003
Selected format:Chemical reagent--Preparations of standard volumetric solutions
WITHDRAWN published on 5.9.1988
Selected format:Chemical reagent Preparations of standard volumetric solutions
WITHDRAWN published on 15.10.2002
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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