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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
Test method for glass mats - Part 2: Determination of tensile breaking force
Standard published on 18.9.2013
Selected format:Test method for glass mats - Part 3Determination of thickness
Standard published on 18.9.2013
Selected format:Anhydrous sodium sulfate for industrial use
Standard published on 8.7.2014
Selected format:Chemical reagent—Preparations of reference titration solutions
Standard published on 13.10.2016
Selected format:Test method for flammability characteristics of fiber-reinforced plastics-Incandescent rod method
Standard published on 18.5.2005
Selected format:
Test method for flammability characteristics of fiber reinforced plastics—Incandescent rod method
Execute Date: december 2026
Standard published on 25.5.2026
Selected format:Determination of trace dimer and residual extraction agent of butadiene for industrial use—Gas chromatographic method
Standard published on 20.8.2021
Selected format:Determination of purity and hydrocarbon impurities of butadiene for industrial use—Gas chromatographic method
Standard published on 20.8.2021
Selected format:Chemical reagent--Preparations of standard solutions for impurity
Standard published on 15.10.2002
Selected format:
Chemical reagent—Preparations of standard solutions for impurity
Execute Date: september 2026
Standard published on 27.2.2026
Selected format:Latest update: 2026-06-24 (Number of items: 2 284 377)
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