Copper Sulphate
| Inspection Items | Unit | Superior | First Grade | Regular Grade |
| Purity | %≥ | 98 | 96 | 94 |
| Cu | %≥ | 25.0 | 24.5 | 24.0 |
| Pb | %≥ | 20ppm | 20ppm | 20ppm |
| As | %≥ | 10ppm | 20ppm | 20ppm |
| Water-insoluble | %≥ | 0.05 | 0.2 | 0.2 |
| Appearance | Blue Crystal, No Impurities | |||
| Inspection Items | Unit | Superior | First Grade | Regular Grade |
| Purity | %≥ | 98 | 96 | 94 |
| Cu | %≥ | 25.0 | 24.5 | 24.0 |
| Pb | %≥ | 20ppm | 20ppm | 20ppm |
| As | %≥ | 10ppm | 20ppm | 20ppm |
| Water-insoluble | %≥ | 0.05 | 0.2 | 0.2 |
| Appearance | Blue Crystal, No Impurities | |||