| 牌号 | YTO-0 | YTO-1 |
|---|---|---|
| WO3(%) | ≥99.95 | ≥99.95 |
| Al | ≤0.0005 | ≤0.001 |
| Fe | ≤0.001 | ≤0.001 |
| S | ≤0.0007 | ≤0.001 |
| As | ≤0.001 | ≤0.001 |
| P | ≤0.0007 | ≤0.001 |
| Mo | ≤0.002 | ≤0.005 |
| Ca | ≤0.001 | ≤0.001 |
| Mg | ≤0.0007 | ≤0.001 |
| K | ≤0.001 | ≤0.0015 |
| Na | ≤0.001 | ≤0.0015 |
| Si | ≤0.001 | ≤0.001 |
| Cu | ≤0.0003 | ≤0.0005 |
| Mn | ≤0.001 | ≤0.001 |
| Ni | ≤0.0007 | ≤0.001 |
| Pb | ≤0.0001 | ≤0.0001 |
| Bi | ≤0.0001 | ≤0.0001 |
| Sn | ≤0.0001 | ≤0.0003 |
| Sb | ≤0.0008 | ≤0.001 |
| V | ≤0.001 | ≤0.001 |
| Ti | ≤0.001 | ≤0.001 |
| Cr | ≤0.001 | ≤0.001 |
| Co | ≤0.001 | ≤0.001 |