REO

%

≥45

CeO₂/REO

%

63-67

La₂O₃/REO

%

33-37

Pr₆O₁₁/REO

%

≤0.01

Nd₂O₃/REO

%

≤0.03

Cl^-

%

≤0.15

SO₄^2-

%

≤0.03

放射性

Bq/g

≤0.8Bq/g