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Standards GB - Chinese national standards - Page 413
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 14506.32-2019
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Methods for chemical analysis of silicate rocks—Part 32: Determination of 20 components including aluminium oxide etc.—Mixed acid digestion-inductively coupled plasma atomic emission spectrometry
Standard published on 18.10.2019
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GB/T 14506.33-2019
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Methods for chemical analysis of silicate rocks—Part 33: Determination of arsenic, stibium, bismuth and mercury elements content—Hydride generation atomic fluorescence spectrometry
Standard published on 10.12.2019
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GB/T 14506.34-2019
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Methods for chemical analysis of silicate rocks—Part 34 :Determination of loss on ignition—Gravimetric method
Standard published on 18.10.2019
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GB/T 14506.4-2010
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Methods for chemical analysis of silicate rocks—Part 4:Determination of aluminium oxide content
Standard published on 10.11.2010
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GB/T 14506.5-2010
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Methods for chemical analysis of silicate rocks—Part 5:Determination of ferric oxide content
Standard published on 10.11.2010
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GB/T 14506.6-2010
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Methods for chemical analysis of silicate rocks—Part 6:Determination of calcium oxide content
Standard published on 10.11.2010
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GB/T 14506.7-2010
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Methods for chemical analysis of silicate rocks—Part 7:Determination of magnesium oxide content
Standard published on 10.11.2010
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GB/T 14506.8-2010
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Methods for chemical analysis of silicate rocks—Part 8:Determination of titanium dioxide content
Standard published on 10.11.2010
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GB/T 14506.9-2010
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Methods for chemical analysis of silicate rocks—Part 9:Determination of phosphorus pentoxide content
Standard published on 10.11.2010
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GB/T 1451-2005
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Fiber-reinforced plastics composites---Determination of Charpy impact properties
Standard published on 18.5.2005
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