Assay (complexometric): ≥ 98.5 %
Chloride (Cl): ≤ 0.003 %
Heavy metals (as Pb): ≤ 0.002 %
Dy (Dysprosium): ≤ 0.04 %
Er (Erbium): ≤ 0.2 %
Eu (Europium): ≤ 0.04 %
Fe (Iron): ≤ 0.001 %
Ho (Holmium): ≤ 0.02 %
Nd (Neodymium): ≤ 0.02 %
Pr (Praseodym): ≤ 0.01 %
Sm (Samarium): ≤ 0.02 %
Tm (Thulium): ≤ 0.02 %
Y (Yttrium): ≤ 0.04 %



