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Standards GB - Chinese national standards - Page 8686
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 7980-1987
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Pulps--Laboratory beating--Valley beater method
WITHDRAWN published on 1.1.1987
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GB 7981-1987
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Pulps--Preparation of laboratory sheets conventional sheet-former method
WITHDRAWN published on 1.1.1987
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GB 7982-1987
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Pulps-Labaratory sheets--Determination of physical properties
WITHDRAWN published on 1.1.1987
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GB/T 7983-1987
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Conveyor belts—Troughability—Method of test
WITHDRAWN published on 4.6.1987
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GB/T 7983-2005
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Conveyor belts—Transverse flexibility and troughability—Test method
WITHDRAWN published on 15.9.2005
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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WITHDRAWN published on 29.4.2001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WITHDRAWN published on 4.6.1987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 7985-2005
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Conveyor belts -- Method for the determination of the tear propagation resistance of textile conveyor belts
WITHDRAWN published on 15.9.2005
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GB 7986-1987
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WITHDRAWN published on 1.1.1987
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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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