| S. No. | Composition | Content (%) |
|---|
| 1. | Zinc (as Zn). percent by weight | Minimum 33.0000 |
| 2. | Sulphate Sulphur (as S) percent by weight | Minimum: 15.0000 |
| 3. | Matter-insoluble in water, percent by weight | Maximum 1.0000 |
| 4. | Iron (as Fe), percent by weight | Maximum 1.0000 |
| 5. | Cadmium (as Cd), percent by weight | Maximum 0.0025 |
| 6. | Arsenic (as As), percent by weight | Maximum 0.0100 |
| 7. | pH (5% solution) not less than | 4.0000 |
| 8. | Free Flowing powder form |