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Standards GB - Chinese national standards - Page 5229
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 7777-2021
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Measurement and evaluation of mechanical vibration of displacement compressors
Standard published on 31.12.2021
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GB/T 7778-2017
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Number designation and safety classification of refrigerants
Standard published on 12.5.2017
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GB/T 7779-2018
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Centrifuge—Model designation
Standard published on 14.5.2018
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GB/T 778.1-2018
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Meters for cold potable water and hot water—Part 1:Metrological requirements and technical requirements
Standard published on 7.6.2018
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GB/T 778.2-2018
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Meters for cold potable water and hot water—Part 2:Test methods
Standard published on 7.6.2018
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GB/T 778.3-2018
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Meters for cold potable water and hot water—Part 3:Test report format
Standard published on 7.6.2018
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GB/T 778.4-2018
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Meters for cold potable water and hot water—Part 4:Non-metrological requirements not covered in GB/T 778.1
Standard published on 7.6.2018
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GB/T 778.5-2018
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Meters for cold potable water and hot water—Part 5:Installation requirements
Standard published on 7.6.2018
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GB/T 7780-2016
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Filters—Model designation
Standard published on 29.8.2016
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GB/T 7781-2018
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Separator—Model designation
Standard published on 14.5.2018
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