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Standards GB - Chinese national standards - Page 5311
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 7259-1987
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Guidelines for presenting performance of analog process measurement and control instrument
Standard published on 16.2.1987
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GB/T 726-1994
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Reciprocating internal combustion engines--Designation of the direction of rotation and of cylinders and valves in cylinder heads and definition of right-hand and left-hand in line engines and locations on an engine
Standard published on 27.12.1994
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GB/T 7260.1-2023
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Uninterruptible power systems (UPS)—Part 1: Safety requirements
Standard published on 28.12.2023
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GB/T 7260.2-2009
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Uninterruptible power systems (UPS) - Part 2: Electromagnetic compatibility (EMC) requirements
Standard published on 6.5.2009
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GB/T 7260.2-2026
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Uninterruptible power systems (UPS)—Part 2: Electromagnetic compatibility (EMC) requirements
Execute Date: october 2026
Standard published on 31.3.2026
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GB/T 7260.3-2003
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Uninterruptiblepower systems(UPS)--Part 3:Method of specifying the performance and test requirements
Standard published on 21.2.2003
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GB/T 7260.3-2024
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Uninterruptible power systems (UPS)—Part 3: Method of specifying the performance and test requirements
Standard published on 29.6.2024
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GB/T 7260.40-2020
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Uninterruptible power systems(UPS)—Part 4:Environmental aspects—Requirements and reporting
Standard published on 14.12.2020
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GB/T 7260.503-2020
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Uninterruptible power systems (UPS)—Part 5-3: DC output UPS—Performance and test requirements
Standard published on 14.12.2020
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GB/T 7261-2016
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Basic testing method for relaying protection and security automatic equipment
Standard published on 24.2.2016
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