Test Item | Specification | |||
Dy2O3 /TREO (% min.) | 99.999 | 99.99 | 99.9 | 99 |
TREO (% min.) | 45 | 45 | 45 | 45 |
Rare Earth Impurities | ppm max. | ppm max. | % max. | % max. |
Gd2O3/TREO Tb4O7/TREO Ho2O3/TREO Er2O3/TREO Tm2O3/TREO Yb2O3/TREO Lu2O3/TREO Y2O3/TREO | 1 5 5 1 1 1 1 5 | 20 20 100 20 20 20 20 20 | 0.005 0.03 0.05 0.05 0.005 0.005 0.01 0.005 | 0.05 0.2 0.3 0.3 0.3 0.3 0.3 0.05 |
Non-Rare Earth Impurities | ppm max. | ppm max. | % max. | % max. |
Fe2O3 SiO2 CaO CuO NiO ZnO PbO | 5 50 30 5 1 1 1 | 10 50 80 5 3 3 3 | 0.001 0.015 0.01 0.01 | 0.003 0.03 0.03 0.02 |