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Standards GB - Chinese national standards - Page 7876
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 4940-1985
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WITHDRAWN published on 1.1.1985
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GB/T 4940-1985
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Triode thyristors for general purpose
WITHDRAWN published on 7.2.1985
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GB 4941.1-1985
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Glass lampshade for civil use and building calibre size
WITHDRAWN published on 1.1.1985
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GB 4941.2-1985
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Glass lampshade for civil use and building calibre size of base frame
WITHDRAWN published on 1.1.1985
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GB/T 4942.1-2001
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Classification of degrees of protection provided by enclosures of rotating electrical machines (IP code)
WITHDRAWN published on 12.7.2001
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GB/T 4942.1-2006
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Degrees of protection provided by the integral design of rotating electrical machined(IP code)—Classification
WITHDRAWN published on 6.3.2006
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GB 4942.2-1985
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WITHDRAWN published on 1.1.1985
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GB/T 4942.2-1993
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Degrees of protection provided by enclosures for low-voltage apparatus
WITHDRAWN published on 20.4.1993
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GB 4943-1995
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Safety of information technology equipment including electrical business equipment
WITHDRAWN published on 1.1.1995
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GB 4943-2001
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Safety of information technology equipment
WITHDRAWN published on 12.11.2001
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