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Standards GB - Chinese national standards - Page 7578
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 3836.9-1990
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Electrical apparatus for explosive atmospheres Encapsulated electrical apparatus "m"
WITHDRAWN published on 27.8.1990
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GB 3836.9-2006
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Electrical apparatus for explosive gas atmospheres—Part 9:Encapsulation "m"
WITHDRAWN published on 1.12.2006
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GB 3836.9-2014
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Explosive atmospheres—Part 9:Equipment protection by type of protection “m”
WITHDRAWN published on 5.12.2014
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GB 3837.1-1983
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WITHDRAWN published on 1.1.1983
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GB/T 3837.2-1983
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Tenons for spindle noses with 7: 24 tapers
WITHDRAWN published on 1.1.1983
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GB/T 3837.3-1983
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Tool shanks with 7: 24 tapers
WITHDRAWN published on 1.1.1983
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GB 3838-1988
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Environmental quality standard for surface water
WITHDRAWN published on 5.4.1988
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GB 3840-1983
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WITHDRAWN published on 1.1.1983
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GB/T 3841-1983
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Standard of smoke and dust emission for boiler
WITHDRAWN published on 14.9.1983
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GB 3842-1983
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Emission standard for pollutants at idle speed from road vehicle with petrol engine
WITHDRAWN published on 1.1.1983
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