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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
Corrosion resistant alloy bars
Standard published on 29.8.2025
Selected format:Physical quantity terminologies and definitions of elastic alloy, expansion alloy, thermostat metal, resistance alloy
Standard published on 5.8.2008
Selected format:Designations of precision alloys
Standard published on 4.4.1994
Selected format:Designation and classification of rapidly quenched metals
Standard published on 12.7.2017
Selected format:Resin based reactive compounds used for electrical insulation - Part 1: Definitions and general requirements
Standard published on 10.6.2009
Selected format:Resin based reactive compounds used for electrical insulation—Part 10: Polyesterimide resin composite
Standard published on 28.12.2023
Selected format:Resin based reactive compounds used for electrical insulation—Part 2: Methods of test
Standard published on 29.12.2017
Selected format:Resin based reactive compounds used for electrical insulation - Part 3: Unfilled epoxy resinous compounds
Standard published on 30.12.2011
Selected format:Resin based reactive compounds used for electrical insulation - Part 4: Unsaturated polyester based impregnating resins
Standard published on 10.6.2009
Selected format:Resin based reactive compounds used for electrical insulation - Part 5Quartz filled epoxy resinous compounds
Standard published on 30.12.2011
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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