Ferrous Sulphate
| Inspection Items | Unit | Heptahydrate | Monohydrate |
| Purity | %≥ | 98 | 92 |
| Fe | %≥ | 19.7 | 30 |
| Fb | %≥ | 20ppm | 20ppm |
| Fe | %≥ | 2ppm | 2ppm |
| Cd | %≥ | 5ppm | 5ppm |
| Appearance | Light-green Crystal | Grey-white Powder |
| Inspection Items | Unit | Heptahydrate | Monohydrate |
| Purity | %≥ | 98 | 92 |
| Fe | %≥ | 19.7 | 30 |
| Fb | %≥ | 20ppm | 20ppm |
| Fe | %≥ | 2ppm | 2ppm |
| Cd | %≥ | 5ppm | 5ppm |
| Appearance | Light-green Crystal | Grey-white Powder |