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Standards GB - Chinese national standards - Page 7261
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 21413.2-2008
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Railway applications—Electric equipment for rolling stock—Part 2:Electrotechnical components—General rules
WITHDRAWN published on 22.1.2008
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GB/T 21413.3-2008
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Railway applications—Electric equipment for rolling stock—Part 3:Electrotechnical components—Rules for d.c. circuit-breakers
WITHDRAWN published on 22.1.2008
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GB/T 21413.4-2008
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Railway applications—Electric equipment for rolling stock—Part4:Electrotechnical components—Rules for AC circuit-breakers
WITHDRAWN published on 22.1.2008
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GB/T 21413.5-2008
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Railway applications—Electric equipment for rolling stock—Part 5:Electrotechnical components—Rules for HV rules
WITHDRAWN published on 22.1.2008
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GB/T 21414-2008
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Railway applications—Rolling stock—Protective provisions against electrical hazards
WITHDRAWN published on 22.1.2008
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GB/T 21415-2008
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In vitro diagnostic medical devices - Measurement of quantities in biological samples - Metrological traceability of values assigned to calibrators and control materials
WITHDRAWN published on 22.1.2008
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GB/T 21419-2008
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Power transformers,power supply units,reactors and similar products—EMC requirements
WITHDRAWN published on 22.1.2008
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GB/T 21419-2013
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Safety of transformers,reactors,power supply units and combinations thereof—EMC requirements
WITHDRAWN published on 19.7.2013
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GB 2142-1980
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Determination of copper content in tellurium--Neocuproine Chloroform extraction photometric method
WITHDRAWN published on 1.1.1980
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GB/T 21421.1-2008
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Composite string insulator units for overhead lines with a nominal voltage greater than 1000V—Part 1:Standard strength classes and end fittings
WITHDRAWN published on 22.1.2008
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