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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
Information technology - Open systems interconnection - The directory - Part 7: Selected object classes
Standard published on 6.8.2008
Selected format:Information technology-Open Systems Interconnection-The Directory:Public-key and attribute certificate frameworks
Standard published on 25.5.2005
Selected format:Test method of packaging materials—Compatibility
Standard published on 30.6.2025
Selected format:Test method of packaging materials—Contact corrosion
Standard published on 18.10.2019
Selected format:Test method of packaging materials—Vapor corrosion inhibiting ability
Standard published on 30.6.2025
Selected format:High strength structural steel plates in the quenched and tempered condition
Standard published on 25.6.2009
Selected format:Steel wire rope slings—Spliced eye terminations
Standard published on 30.6.2025
Selected format:Graphical symbols for use on equipment - Part 1: Common symbols
Standard published on 16.7.2008
Selected format:Graphical symbols for use on equipment--Common symbols for machine tools
Standard published on 10.4.1996
Selected format:Graphical symbols for use on equipment--Common symbols for electric welding equipment
Standard published on 8.5.1999
Selected format:Latest update: 2026-06-10 (Number of items: 2 281 585)
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