Review on the standards for rare earth analysis and testing methods

This paper reviews the national standards system of rare earth analysis from the rare earth ores, rareearth concentrates, metals and their oxides, and rare earth products. The determination of RE relative contents, aluminum oxide, total rare earth, water, ignition loss parameters are important technical indicators in trading andextraction separation process. The scraps of neodymium iron boron, rare earth three-band phosphors for fluoredcentlamps, rare earth ferrosilicon alloy, such as analytical standards for the production of rare earth magnetic materials, luminescent materials, rare earth alloy of rare earth deep-processing products have important guiding significance.The establishment of RE products and analysis methods meets the demands of RE production and trade, whichleads to the sustainable and sound development of RE industry.