GB/T 16484.4-2009
ActiveChemical analysis methods of rare earth chloride and light rare earth carbonate - Part 4: Determination of thorium oxide content - ArsenazoⅢ spectrophotometry
氯化稀土、碳酸轻稀土化学分析方法 第4部分：氧化钍量的测定 偶氮胂Ⅲ分光光度法
Application Summary AI generated
This standard specifies the use of arsenazoⅢ spectrophotometry to determine thorium oxide content in rare earth chloride and light rare earth carbonate. It is applied in the metallurgical industry for quality control and chemical analysis of these rare earth compounds, particularly to ensure safety and compliance by detecting trace levels of radioactive thorium. The method is used in production, inspection, and research settings where precise quantification of thorium is required.
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GB/T 12690.12-2003
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of thorium content--Arsenazo III spectrophotometric method and inductively coupled plasma mass spectrum method
GB/T 12690.5-2003
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of Al、Cr、Mn、Fe、Co、Ni、Cu、Zn、Pb content by inductively coupled plasma atomic emission spectrographic method--Determination of Co、Mn、Pb、N
GB/T 12690.6-2003
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