Technical FAQs
Technical FAQs
Limits | |||
Description | Units | Minimum | Maximum |
Hydrogen ion activity pH | - | 7 | 8.5 |
Specific conductibility at 20°C σ R, 20°C | μS/cm | 300 | 1250 |
Total dissolved solids TDS | mg/l | (1) | (1) |
Residual fixed at 180°C R180 | mg/l | (1) | (1) |
Total hardness TH | mg/l | 100(2) | 100 |
Temporary hardness | mg/l | 60(3) | 300 |
Iron + manganese | mg/l Fe + Mn | 0 | 0.2 |
Chlorides | ppm Cl | 0 | 30 |
Silica | mg/l | 0 | 20 |
Residual chloride | mg/l | 0 | 0.2 |
Calcium sulphate | mg/l | 0 | 100 |
Metallic impurities | mg/l | 0 | 0 |
Solvents, diluents, soaps, lubricants | mg/l | 0 | 0 |