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Standards GB - Chinese national standards - Page 105
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
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GB/T 11300-1989
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Blank detail specification for variable tuning capacitors type A in electronic equipments
Standard published on 31.3.1989
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GB/T 11301-1989
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Blankdetail specification for variable tuning capacitors type A fitted with integralpreset capacitors type C in electronic equipments
Standard published on 31.3.1989
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GB/T 11302-1989
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Blank detail specification for variable trimmer capacitors type B in electronic equipments
Standard published on 31.3.1989
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GB/T 11303-1989
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Blank detail specification for variable preset capacitors type C in electronic equipments
Standard published on 31.3.1989
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GB/T 11309-1989
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Test methods for the properties of piezoelectric ceramics--Quasi-static testfor piezoelectric strain content d33
Standard published on 31.3.1989
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GB/T 1131.1-2004
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Hand reamers--Part 1:Types and dimensions
Standard published on 10.2.2004
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GB/T 1131.2-2004
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Hand reamers--Part 2:Technical conditions
Standard published on 10.2.2004
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GB/T 11310-1989
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Test methods for the properties of piezoelectric ceramics--Test methods for temperature characteristics of relative free dielectric constants
Standard published on 31.3.1989
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GB/T 11311-1989
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Test methods for the properties of piezoelectric ceramics--Test for Poisson’s ratio E
Standard published on 31.3.1989
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GB/T 11312-1989
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Test methods for SAW properties of piezoelectric ceramics and crystals
Standard published on 31.3.1989
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