ITEM | INDEX | ||
1 | ZnO | %≥ | 95.0 |
2 | 105ºC volatile | %≤ | 0.8 |
3 | Water soluble substance | %≤ | 1.5 |
4 | Burn reduction | %≤ | 4 |
5 | Hydrochloric acid insoluble matter | %≤ | 0.05 |
6 | Pb | %≤ | 0.0020 |
7 | Cu | %≤ | 0.0008 |
8 | Mn | %≤ | 0.0050 |
9 | Cd | %≤ | 0.0008 |
10 | As | %≤ | 0.0005 |
11 | S pecific surface area | %≥ | 35 |
12 | Sulfate ( SO² ) | %≤ | 1.0 |
13 | F ineness (150um test sieve) | %≥ | 98 |
14 | Color | standard | White or slightly yellow powder |