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Standards GB - Chinese national standards - Page 7590
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 7984-2001
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Conveyor belts—Specification for rubber or plastics covered conveyor belts of textile construction for general use
WITHDRAWN published on 29.4.2001
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GB/T 7985-1987
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Conveyor belts—Carcass tear resistance—Method of test
WITHDRAWN published on 4.6.1987
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GB/T 7986-1997
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Conveyor belts—Drum friction—Method of test
WITHDRAWN published on 14.10.1997
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GB/T 7987-1987
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The test methods for thermal shock resistance of glass-lined layer
WITHDRAWN published on 24.6.1987
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GB/T 7987-2003
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Vitreous and porcelain enamels—Determination of resistance to therm shock
WITHDRAWN published on 16.6.2003
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GB/T 7987-2013
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Vitreous and porcelain enamels—Determination of resistance to therml shock
WITHDRAWN published on 31.12.2013
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GB/T 7988-1987
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Determination of resistance to hot sodium hydroxide of vitreous enamel
WITHDRAWN published on 24.6.1987
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GB/T 7988-2002
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Vitreous and porcelain enamels—Determination of resistance to hot sodium hydroxide
WITHDRAWN published on 29.5.2002
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GB/T 7988-2013
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Viterous and porcelain enamels—Determination of resistance to alkaline liquids
WITHDRAWN published on 31.12.2013
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GB/T 7989-1987
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Determination of resistance to boiling hydrochloric acid of vitreous enamel
WITHDRAWN published on 24.6.1987
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