| White Seal | Red Seal | Calcined | ||
|---|---|---|---|---|
| Purity (ZnO) | 99.7 | 99.5 | 90 | % Min |
| Moisture Content | 0.15 | 0.15 | 0.5 | % Max |
| Ignition Loss | 0.1 | 0.1 | 0.5 | % Max |
| HCl Insoluble | 0.05 | 0.1 | 0.1 | % Max |
| Iron (Fe) | 0.0005 | 0.01 | 0.1 | % Max |
| Lead (Pb) | 0.005 | 0.1 | 1.0 | % Max |
| Copper (Cu) | 0.0005 | 0.001 | 0.01 | % Max |
| Cadmium (Cd) | 0.001 | 0.01 | 0.01 | % Max |
| Chloride (Cl) | 0.02 | 0.05 | 0.1 | % Max |
| Sieve 325 Mesh | 0.1 | 0.1 | 0.1 | % Max |
| Appearance | White Powder | White Powder | Off-White Powder |