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Standards GB - Chinese national standards - Page 8556
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 726-1986
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Reciprocating internal combustion engines--Designation of the cylinders
WITHDRAWN published on 1.1.1986
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GB/T 7260-1987
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Uninterruptible power systems
WITHDRAWN published on 13.2.1987
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GB/T 7260.1-2008
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Uninterruptible power systems(UPS)—Part 1-1:General and safety requirements for UPS used in operator access areas
WITHDRAWN published on 20.5.2008
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GB 7260.2-2003
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Uninterruptible power systems(UPS)—Part 2:Electromagnetic compatibility(EMC) requirements
WITHDRAWN published on 21.2.2003
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GB/T 7260.4-2008
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Uninterruptible power systems(UPS)—Part 1-2:General and safety requirements for UPS used in restricted access locations
WITHDRAWN published on 20.5.2008
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GB/T 7261-2000
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Basic testing method for relay and equipment
WITHDRAWN published on 17.10.2000
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GB/T 7261-2008
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Basic testing method for relaying protection and security automatic equipment
WITHDRAWN published on 18.6.2008
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GB/T 7262-2009
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Technical requirements and equipment arrangement for highway communication
WITHDRAWN published on 30.9.2009
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GB/T 7262.1-1993
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Technical requirements and arrangement of equipment for highway communication general
WITHDRAWN published on 10.3.1993
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GB/T 7262.2-1991
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Technical requirements and arrangement of equipment for highway communication--Arrangement of equipment
WITHDRAWN published on 1.1.1991
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