
Qualitative Standards (%) :
Type A
| Zr(Hf)O2 | Y2O3 | SiO2O | Fe2O3 | Na2O | D50 | Specific Surface Area |
|---|---|---|---|---|---|---|
| 86 | 13.5±0.2 | 0.02 | 0.003 | 0.01 | 0.5 - 1.0 μm | >15 m2/g |
Type B
| Zr(Hf)O2 | Y2O3 | SiO2O | Fe2O3 | Na2O | D50 | Specific Surface Area |
|---|---|---|---|---|---|---|
| 86 | 13.5±0.2 | 0.02 | 0.003 | 0.01 | 0.5 - 1.0 μm | <10 m2/g |