Zinc Oxide (Indirect Method)
|
Index Item |
Index | |||||
|
Type I |
Type II | |||||
|
Super Grade |
Grade1 |
Qualified Grade |
Super Grade |
Grade1 |
Qualified Grade | |
|
Zinc oxide %≥ |
99.70 |
99.50 |
99.40 |
99.70 |
99.50 |
99.40 |
|
Metallic metals (as Zn) %≤ |
None |
None |
0.008 |
None |
None |
0.008 |
|
Lead oxide (as pb) %≤ |
0.037 |
0.05 |
0.14 |
- |
- |
- |
|
Manganic oxide (as Mn) %≤ |
0.0001 |
0.0001 |
0.0003 |
- |
- |
- |
|
Copper oxide (as Cu) %≤ |
0.0002 |
0.0004 |
0.0007 |
- |
- |
- |
|
Insolubles in HCL solution%≤ |
0.006 |
0.008 |
0.05 |
- |
- |
- |
|
Losses on ignition %≤ |
0.2 |
0.2 |
0.2 |
- |
- |
- |
|
Screening residues (through 45μm mesh) %≤ |
0.10 |
0.15 |
0.20 |
0.10 |
0.15 |
0.20 |