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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 thermal conductivity of beryllium oxide ceramics
Standard published on 15.5.2015
Selected format:Specification for dynamic performance assessment and testing verification of rolling stock
Standard published on 10.12.2019
Selected format:Hexagon thick nuts
Standard published on 24.6.1988
Selected format:General technical specification for railway freight car
Standard published on 7.6.2018
Selected format:Rules for inspecting and testing of railway for freight car
Standard published on 7.6.2018
Selected format:Acetate fiber filter rod
Standard published on 21.11.2011
Selected format:Cigarettes--Part 1:Sampling
Standard published on 14.12.2004
Selected format:Cigarettes-mark
Standard published on 17.6.2005
Selected format:Cigarettes--Technical Requirements for Packing,Making,Storage and Transport
Standard published on 17.6.2005
Selected format:Cigarettes-Technical Requirements for Sense Evaluation
Standard published on 17.6.2005
Selected format:Latest update: 2026-08-13 (Number of items: 2 293 179)
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