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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
High-voltage alternating current switch-fuse combinations
Standard published on 19.3.2009
Selected format:
High-voltage alternating current switch-fuse combinations
Execute Date: february 2027
Standard published on 2.7.2026
Selected format:High-voltage test techniques - Part 1: General definitions and test requirements
Standard published on 30.12.2011
Selected format:High-voltage test techniques - Part 2Measuring systems
Standard published on 7.2.2013
Selected format:High-voltage test techniques - Part3: Definitions and requirements for on-site testing
Standard published on 10.11.2010
Selected format:High voltage and high current test techniquesPart 4: Definitions and requirements for test currents and measuring systems
Standard published on 6.5.2014
Selected format:Test method for packaging materials—Oil permeability
Standard published on 1.8.2025
Selected format:Rubber,vulcanized - Determination of dielectric constant and dielectric loss tangent
Standard published on 14.5.2007
Selected format:Tactile sticksPart 1: A sign of safety color
Standard published on 31.12.2014
Selected format:Tactile sticks—Part 2: Performance requirements and test methods
Standard published on 9.3.2021
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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