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Standards GB - Chinese national standards - Page 7252
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 25286.5-2010
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Non-electrical equipment for explosive atmospheres—Part 5:Protection by constructional safety "c"
WITHDRAWN published on 10.11.2010
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GB 25286.6-2010
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Non-electrical equipment for explosive atmospheres—Part 6:Protection by control of ignition source "b"
WITHDRAWN published on 10.11.2010
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GB 25286.8-2010
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Non-electrical equipment for explosive atmospheres—Part 8:Protection by liquid immersion "k"
WITHDRAWN published on 10.11.2010
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GB 25287-2010
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Perimeter protection high-voltage device
WITHDRAWN published on 10.11.2010
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GB/T 25289-2010
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Specification and technical requirements for 20 kV oil-immersed distribution transformers
WITHDRAWN published on 10.11.2010
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GB/T 2529-1989
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Copper sheets for electrical conduction purpose
WITHDRAWN published on 25.3.1981
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GB/T 2529-2005
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Copper sheets and bars for electrical conduction purpose
WITHDRAWN published on 4.7.2005
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GB/T 25290-2010
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Specification for Y3 series(IP55)three-phase induction motor(Frame size 63355)
WITHDRAWN published on 10.11.2010
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GB/T 25292-2010
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Specification for direct current machine in ships
WITHDRAWN published on 10.11.2010
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GB/T 25296-2010
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Guidelines on general tests for safety of electrical equipments
WITHDRAWN published on 10.11.2010
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