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Standards GB - Chinese national standards - Page 4973
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 5195.16-2017
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Fluorspar—Determination of silicon, aluminum, iron, potassium, magnesium and titanium content—Inductively coupled plasma atomic emission spectrometry
Standard published on 7.9.2017
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GB/T 5195.17-2018
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Fluorspar—Determination of flotation agents—Gravimetric method
Standard published on 17.9.2018
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GB/T 5195.18-2018
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Fluorspar—Determination of barium sulfate content—Gravimetric method
Standard published on 17.9.2018
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GB/T 5195.2-2006
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FluorsparDetermination of carbonate content
Standard published on 16.8.2006
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GB/T 5195.3-2017
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Fluorspar—Determination of loss in mass at 105—Gravimetric method
Standard published on 7.9.2017
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GB/T 5195.4-2025
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Methods for chemical analysis of fluorspar—Part 4: Determination of total sulfur and sulfide content
Standard published on 29.8.2025
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GB/T 5195.6-2017
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Fluorspar—Determination of phosphorus content—Photometric method
Standard published on 14.10.2017
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GB/T 5195.7-2016
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Fluorspar—Determination of zinc content—Flame atomic absorption spectrophotometric method
Standard published on 13.12.2016
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GB/T 5195.8-2006
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FluorsparDetermination of silicon dioxide content
Standard published on 16.8.2006
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GB/T 5195.9-2016
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Fluorspar—Determination of loss on ignition—Gravimetric method
Standard published on 13.12.2016
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