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Standards GB - Chinese national standards - Page 7668
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 3684-2006
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Conveyor belts—Electrical conductivity—Specification and test method
WITHDRAWN published on 29.12.2006
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GB/T 3685-1996
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Conveyor belts—Flame retardation—Specifications and test method
WITHDRAWN published on 12.6.1996
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GB/T 3685-2009
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Conveyor belts—Laboratory scale flammability characteristics—Requirements and test method
WITHDRAWN published on 24.4.2009
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GB 3686-1983
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WITHDRAWN published on 1.1.1983
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GB/T 3686-1998
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V-belts—Tensile strength and elongation test method
WITHDRAWN published on 19.10.1998
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GB/T 3687-1989
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V-belts—Determination of ply adhesion
WITHDRAWN published on 6.3.1989
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GB 3688-1983
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WITHDRAWN published on 1.1.1983
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GB/T 3688-1998
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V-belts--Cord adhesion test method
WITHDRAWN published on 19.10.1998
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GB 3689-1983
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Rubber flat belts--Resistance to stripping by flexing--Method of test
WITHDRAWN published on 1.1.1983
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GB 36893-2018
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Minimum allowable values of energy efficiency and energy efficiency grades for air cleaners
WITHDRAWN published on 19.11.2018
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