Translations:Wasserparameter bei der Wasseraufbereitung/15/en

The chemically pure water with pH of 7 is dissociated only to a limited extent in the H3O+ and OH-electric charge carriers. Therefore, it has a specific high resistance of 18.2 M Ω •cm (= 1.82×1013 Ω •mm²/m) at 25 °C. This corresponds to a specific conductance value of 54.9 nS•cm−. Thereby the effect of variation of temperature is about 1.5 to 2% per Kelvin. Dissolved salts and acids intensify the concentration of charge carrier. Already the mains water reaches up to about 10,000 times the conductivity of an average of 500 µS•cm−1 depending on the mineral content. <ref name="Wiki">Wikipedia</ref>