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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
Bursting disc safety devices Part 1Basic requirment
Standard published on 11.5.2012
Selected format:Bursting disc safety devices Part 2Application,selection and installation
Standard published on 11.5.2012
Selected format:Bursting disc safety devices Part 3: Classification and mounting dimensions
Standard published on 11.5.2012
Selected format:Bursting disc safety devices Part 4: Type test
Standard published on 11.5.2012
Selected format:General purpose lithium lubricating grease for automobile
Standard published on 19.2.2014
Selected format:Castings—Radiographic testing
Standard published on 17.9.2018
Selected format:Sampling methods of spectrochemical analysis for cast alloys
Standard published on 9.6.2013
Selected format:Austenitic manganese steel castings
Standard published on 23.5.2023
Selected format:Ferroboron
Standard published on 11.9.2015
Selected format:Ferrochromium
Standard published on 25.4.2024
Selected format:Latest update: 2026-08-13 (Number of items: 2 293 179)
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