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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
Textiles--Tests for colour fastness--Colour fastness to formaldehyde
Standard published on 9.10.1997
Selected format:Dimension,shape,weight and tolerance for cold-rolled steel strip and sheet
Standard published on 25.3.2019
Selected format:Dimension,shape,weight and tolerance for hot-rolled steel strip,plate and sheet
Standard published on 25.3.2019
Selected format:Outline dimensions of semiconductor integrated circuits
Standard published on 9.3.2021
Selected format:Vibration (sinusoidal) test method for electrical installations in ships
Standard published on 29.8.2016
Selected format:Enamelled rectangular copper winding wires - Part 1:General requirements
Standard published on 13.6.2008
Selected format:Enamelled rectangular copper winding wires - Part 2:Polyvinyl acetal enamelled rectangular copper wire,class 120
Standard published on 13.6.2008
Selected format:Enamelled rectangular copper winding wires - Part 3:Polyester enamelled rectangular copper wire, class 155
Standard published on 13.6.2008
Selected format:Enamelled rectangular copper winding wires - Part 4:Polyesterimide enamelled rectangular copper wire, class 180
Standard published on 13.6.2008
Selected format:Enamelled rectangular copper winding wires - Part 5:Aromatic polyimide enamelled rectangular copper wire, class 240
Standard published on 13.6.2008
Selected format:Latest update: 2026-06-14 (Number of items: 2 282 206)
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