Chemical analysis methods for samarium-cobalt permanent magnet alloy—Part 1:Determination of samarium,cobalt,copper,iron,zirconium,gadolinium,praseodymium content
Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 1:Determination of carbon and sulfur contents—High frequency-infrared absorption method
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 4: Determination of oxygen and nitrogen contents—Impulse-infrared absorption and impulse-thermal conductivity method
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 1：Determination of carbon and sulfur contents—High frequency-infrared absorption method
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