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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
Test methods for properties of structure ceramic used in electronic components--Test method for gas-tightness
Standard published on 27.11.1985
Selected format:Test methods for properties of structure ceramic used in electronic components--Test method for Youngs elastic modulus and Poisson ratio
Standard published on 27.11.1985
Selected format:Test methods for properties of structure ceramic used in electronic components and device—Part 3: Test method for mean coefficient of linear expansion
Standard published on 15.5.2015
Selected format:Test methods for properties of structure ceramic used in electronic components and device—Part 4: Test method for permittivity and dielectric loss angle tangent value
Standard published on 15.5.2015
Selected format:Test methods for properties of structure ceramic used in electronic components--Test method forvolume resistivity
Standard published on 27.11.1985
Selected format:Test methods for properties of structure ceramics used in eletronic components and device—Part 6: Test method for chemical durability
Standard published on 15.5.2015
Selected format:Test methods for properties of structure ceramic used in electronic components and device—Part 7: Test method for liquid permeability
Standard published on 15.5.2015
Selected format:Test methods for properties of structure ceramic used in electronic components and device—Part 8: Test method for microstructure
Standard published on 15.5.2015
Selected format:Ceramic dielectric materials used for capacitors
Standard published on 9.9.1996
Selected format:Test method for complex permittivity of solid dielectric materials at microwave frequencies
Standard published on 19.5.1999
Selected format:Latest update: 2026-08-13 (Number of items: 2 293 179)
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