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Standards GB - Chinese national standards - Page 4940
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 5195.1-2017
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Fluorspar—Determination of calcium fluoride content—EDTA titration method and distillation-potentiometric titration method
Standard published on 7.9.2017
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GB/T 5195.10-2006
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FluorsparDetermination of iron content1,10-phenanthroline spectrophotometric method
Standard published on 16.8.2006
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GB/T 5195.11-2021
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Fluorspar—Determination of manganese content—Periodate spectrophotometry and flame atomic absorption spectrometry
Standard published on 20.8.2021
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GB/T 5195.12-2025
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Methods for chemical analysis of fluorspar—Part 12: Determination of arsenic content
Standard published on 29.8.2025
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GB/T 5195.13-2017
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Fluorspar—Determination of aluminium content—EDTA titration method
Standard published on 7.9.2017
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GB/T 5195.14-2017
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Fluorspar—Determination of magnesium content—Flame atomic absorption spectrometry
Standard published on 7.9.2017
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GB/T 5195.15-2017
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Fluorspar—Determination of calcium,aluminum,silicon,phosphorus,sulfur,potassium,iron,barium and lead content—Wavelength dispersive X-ray fluorescence spectrometric method
Standard published on 7.9.2017
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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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