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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
Arc welding equipment—Part 9: Installation and use
Standard published on 29.12.2017
Selected format:Test method for substitutional carbon content in silicon by infrared absorption
Standard published on 28.12.2023
Selected format:Discharge standards of water pollutants for phosphate fertilizer industry
Standard published on 12.5.2011
Selected format:Emission standard of polluants for caustic alkali and polyvinyl chloride industry
Standard published on 23.12.2016
Selected format:Dimethoate technical
Standard published on 12.6.1995
Selected format:40 Dimethoate emulsifiable concentrates
Standard published on 12.6.1995
Selected format:Energy management systems—Guidelines for a phased implementation
Standard published on 7.9.2023
Selected format:Classification of macerals for bituminous coal
Standard published on 17.12.2013
Selected format:Classification of microlithotype
Standard published on 17.12.2013
Selected format:Method of determining microlithotype composition
Standard published on 7.8.2008
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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