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Standards GB - Chinese national standards - Page 5395
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 8105-1987
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Hydraulic fluid power--Valves--Testing method of pressure control valves
Standard published on 23.7.1987
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GB/T 8106-1987
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Hydraulic fluid power--Valves--Testing method of directional control valves
Standard published on 23.7.1987
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GB/T 8107-2012
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Hydraulic fluid power-Valves - Determination of pressure differential/flow characteristics
Standard published on 31.12.2012
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GB 8108-2014
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Vehicle electronic sirens
Standard published on 5.12.2014
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GB 8109-2005
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Wheeled fire extinguishers
Standard published on 22.4.2005
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GB 8109-2023
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Wheeled fire extinguishers
Standard published on 28.12.2023
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GB 811-2022
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Helmets for motorcycle and electric bicycle users
Standard published on 1.12.2022
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GB/T 8110-2020
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Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels
Standard published on 19.11.2020
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GB/T 8117.1-2008
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Rules for steam turbine thermal acceptance tests - Part 1: Method A - High accuracy for large condensing steam turbines
Standard published on 2.7.2008
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GB/T 8117.2-2008
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Rules for steam turbine thermal acceptance tests - Part 2: Method B - Wide range of accuracy for various types and sizes of turbines
Standard published on 2.7.2008
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