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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
Industrial automation systems and integration--Product data representation and exchange--Part 513:Application interpreted construct:Elementary boun-dary representation
Standard published on 9.4.2004
Selected format:Industrial automation systems and integration—Product data representation and exchange—Part 52: Integrated generic resource: Mesh-based topology
Standard published on 7.9.2023
Selected format:Industrial automation systems and integration--Product data representation and exchange--Part 520:Application interpreted construct:Associative draughting elements
Standard published on 13.6.2002
Selected format:Industrial automation systems and integration - Product data representation and exchange - Part 54: Integrated generic resource: Classification and set theory
Standard published on 14.1.2011
Selected format:Industrial automation systems and integration - Product data representation and exchange - Part 55: Integrated generic resource: Procedural and hybrid representation
Standard published on 14.1.2011
Selected format:Industrial automation systems and integration - Product data representation and exchange - Part 56: Integrated generic resource: State
Standard published on 14.1.2011
Selected format:Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition
Standard published on 30.6.2008
Selected format:Determination of chromium cadium and lead in coal
Standard published on 1.11.2007
Selected format:
Determination of copper, cobalt, nickel, zinc, chromium, cadium and lead in coal
Execute Date: october 2026
Standard published on 31.3.2026
Selected format:Determination of mercury of coal
Standard published on 25.4.2024
Selected format:Latest update: 2026-06-14 (Number of items: 2 282 206)
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