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Standards GB - Chinese national standards - Page 7009
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 22386-2008
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Common format for transient data exchange (COMTRADE) for power systems
WITHDRAWN published on 24.9.2008
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GB/T 22387-2008
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Residual current operated relay
WITHDRAWN published on 24.9.2008
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GB/T 22389-2008
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Guidelines of metal oxide surge arresters without gaps for HVDC converter stations
WITHDRAWN published on 24.9.2008
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GB/T 2239-1991
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(The parts and units of jigs and fixtures. Universal pillar)
WITHDRAWN published on 1.1.1991
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GB/T 22391-2008
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Test method of endurance for solid tyres—Drum method
WITHDRAWN published on 24.9.2008
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GB/T 22393-2008
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Condition monitoring and diagnostics of machines—General guidelines
WITHDRAWN published on 27.9.2008
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GB/T 22394-2008
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Condition monitoring and diagnostics of machines—General guidelines on data interpretation and diagnostics techniques
WITHDRAWN published on 27.9.2008
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GB/T 22395-2008
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Specification for design of boiler steel structures
WITHDRAWN published on 26.9.2008
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GB/T 224-1987
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Determination of depth of decarburization of steel
WITHDRAWN published on 14.11.1987
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GB/T 224-2008
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Determination of depth of decarburization of steels
WITHDRAWN published on 5.8.2008
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