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Standards GB - Chinese national standards - Page 7331
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 27698.4-2011
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Test method for the performance of heat exchangers and heat exchange element—Part 4:Spiral heat exchanger
WITHDRAWN published on 30.12.2011
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GB/T 27698.5-2011
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Test method for the performance of heat exchangers and heat exchange element—Part 5:Heat transfer tube for tubular heat exchangers
WITHDRAWN published on 30.12.2011
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GB/T 27698.6-2011
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Test method for the performance of heat exchangers and heat exchange element—Part 6:Fing tube for air-cooled heat exchangers
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GB/T 27698.7-2011
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Test method for the performance of heat exchangers and heat exchange element—Part 7:Measurement of noise from air-cooled heat exchangers
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GB/T 27698.8-2011
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Test method for the performance of heat exchangers and heat exchange element—Part 8:Determination of industrial locale for heat exchangers
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GB/T 27699-2011
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Steel pipeline in-line inspection technical specification
WITHDRAWN published on 30.12.2011
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GB 277-1989
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Rolling bearings--Deep groove ball bearings with snap ring groove--Boundary dimensions
WITHDRAWN published on 1.1.1989
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GB 2770-1988
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Tonsil haemostatic forceps
WITHDRAWN published on 1.1.1988
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GB/T 27700.1-2011
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Surface acoustic wave(SAW) filters of assessed quality—Part 1:Generic specification
WITHDRAWN published on 30.12.2011
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GB 27701-2011
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Mechanical safety of cathode ray tubes
WITHDRAWN published on 30.12.2011
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