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Standards GB - Chinese national standards - Page 8221
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 5226.4-2005
WITHDRAWN
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Safety of machinery—Electrical equipment of machines—Part 31:Particular safety and EMC requirements for sewing machines, units and systems
WITHDRAWN published on 9.9.2005
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GB 5227-1985
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Specification for mill auxiliary DC motors
WITHDRAWN published on 1.1.1985
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GB 5228-1985
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Families and products of audio circuit for semiconductor integrated circuits
WITHDRAWN published on 1.1.1985
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GB 5229-1985
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Families and products of TV for semiconductor integrated circuits
WITHDRAWN published on 1.1.1985
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GB 523-1974
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WITHDRAWN published on 1.1.1974
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GB 5230-1985
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Electrodeposited copper foil
WITHDRAWN published on 1.1.1985
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GB/T 5230-1995
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Electrodeposited copper foil
WITHDRAWN published on 18.4.1995
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GB/T 5231-2001
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Wrought copper and copper alloys chemical composition limits and forms of wrought products
WITHDRAWN published on 10.7.2001
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GB/T 5231-2012
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Designation and chemical composition of wrought copper and copper alloys
WITHDRAWN published on 31.12.2012
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GB/T 5232-1985
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Wrought copper-zinc alloys (brasses)--Chemical composition and forms of wrought products
WITHDRAWN published on 22.7.1985
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