Table 1 Classification of water corrosion potential based on the calcite saturation indices values and recommended treatments
Saturation indices (SI) | Description | General recommendations |
|---|---|---|
−5 | Severe corrosion | Treatment recommended |
−4 | Moderate corrosion | Treatment recommended |
−3 | Moderate corrosion | Treatment recommended |
−2 | Moderate corrosion | Treatment should be considered |
−1 | Mild corrosion | Treatment should be considered |
−0.5 | Mild corrosion | Treatment probably not needed |
0 | Balanced | Treatment typically not needed |
0.5 | Some faint coating | Treatment typically not needed |
1 | Mild scale forming | Some esthetic problems |
2 | Mild scale forming | Some esthetic considered |
3 | Moderate scale forming | Treatment should be considered |
4 | Severe scale forming | Treatment probably required |
5 | Severe scale forming | Treatment required |