|
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 |
|
Soluble matters in Water %≤ |
0.10 |
0.10 |
0.15 |
0.10 |
0.10 |
0.15 |
|
Volatile matters at 105°C %≤ |
0.3 |
0.4 |
0.5 |
0.3 |
0.4 |
0.5 |
|
Oilabsorption g/100g ≤ |
- |
- |
- |
14 |
14 |
14 |
|
Colour (compared with standard specimen) |
- |
- |
- |
Similar |
Few |
Little |
|
Colour killing ( Compared with standard specimen) %≥ |
- |
- |
- |
100 |
95 |
90 |
