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Standards GB - Chinese national standards - Page 27
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 1029-2021
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Test procedures for three-phase synchronous machines
Standard published on 21.5.2021
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GB/T 10294-2008
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Thermal insulation - Determination of steady-state thermal resistance and related properties - Guarded hot plate apparatus
Standard published on 30.6.2008
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GB/T 10295-2008
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Thermal insulation-Determination of steady-state thermal resistance and related properties - Heat flow meter apparatus
Standard published on 30.6.2008
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GB/T 10296-2008
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Thermal insulation - Determination of steady-state thermal transmission properties-pipe insulation apparatus
Standard published on 30.6.2008
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GB/T 10297-2015
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Test method for thermal conductivity of nonmetal solid materials—hot-wire method
Standard published on 11.9.2015
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GB/T 10299-2011
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Test method for hydrophobic nature of thermal insulation
Standard published on 20.7.2011
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GB/T 1030-1988
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Inner sphere washers
Standard published on 22.12.1988
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GB/T 10303-2015
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Expanded perlite thermal insulation
Standard published on 11.9.2015
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GB/T 10304-2008
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Analytical method of cathode carbonate
Standard published on 2.7.2008
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GB/T 10305-1988
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Test method for particle distribution of cathode carb-onates by centrifugation sedimentation
Standard published on 30.12.1988
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