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Standards GB - Chinese national standards - Page 5512
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 11018.3-1989
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Copper winding wires with silk covering--Bunched wires with silk covering
WITHDRAWN published on 31.3.1989
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GB/T 11019-1989
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Nickel coated round copper wire
WITHDRAWN published on 31.3.1989
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GB/T 11019-2009
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Nickel coated round copper wire
WITHDRAWN published on 19.3.2009
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GB/T 1102-1972
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Round strand steel wire ropes
WITHDRAWN published on 1.1.1972
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GB/T 11020-1989
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Test methods for the determination of the flamm-ability of solid electrical insulating materials when exposed to an igniting source
WITHDRAWN published on 31.3.1989
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GB/T 11021-1989
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Thermal evaluation and classification of electrical insulation
WITHDRAWN published on 31.3.1989
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GB/T 11021-2007
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Electrical insulation—Thermal classification
WITHDRAWN published on 3.12.2007
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GB/T 11022-1999
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Common specifications for high-voltage switchgear and control gear standards
WITHDRAWN published on 10.10.1999
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GB/T 11022-2011
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Common specifications for high-voltage switchgear and controlgear standards
WITHDRAWN published on 30.12.2011
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GB/T 11023-1989
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Test guide of SF6 gas tightness for high-voltage switchgear
WITHDRAWN published on 31.3.1989
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