| Indication | Criteria |
|---|
| Low mineral content | Mineral salt content, calculated as a fixed residue, not greater than 500 mg/l |
| Very low mineral content | Mineral salt content, calculated as a fixed residue, not greater than 50 mg/l |
| Rich in mineral salts | Mineral salt content, calculated as a fixed residue, greater than 1500 mg/l |
| Contains bicarbonate | Bicarbonate content greater than 600 mg/l |
| Contains sulphate | Sulphate content greater than 200 mg/l |
| Contains chloride | Chloride content greater than 200 mg/l |
| Contains calcium | Calcium content greater than 150 mg/l |
| Contains magnesium | Magnesium content greater than 50 mg/l |
| Contains fluoride | Fluoride content greater than 1 mg/l |
| Contains iron | Bivalent iron content greater than 1 mg/l |
| Acidic | Free carbon dioxide content greater than 250 mg/l |
| Contains sodium | Sodium content greater than 200 mg/l |
| Suitable for a low-sodium diet | Sodium content less than 20 mg/l |