Electrical conductivity is the opposite of electrical resistance. According to the chemical definitions, in order to determine the electrical resistance of a solution, the resistance is measured between two electrodes standing one centimeter apart from each other and having a surface area of ​​one centimeter.

To determine the amount of all dissolved ions in the water, the electrical conductivity must be measured. Therefore, the electrical conductivity value of water depends on the type and concentration of ions dissolved in the water. The purer the water, the lower the conductivity value. The higher the dissolved salt concentration in the water, the higher the electrical conductivity of the water. Thus, by measuring the electrical conductivity of the water, the total amount of salt dissolved in the water is understood.

Since natural waters are largely pure, their conductivity is also very small. Electrical conductivity value should be the lowest 400 mikroom and the highest 2000 mikroom.

In the measurements carried out in the authorized laboratories, the electrical conduction properties of the anions and cations in the water sample are utilized and the conductivity is measured by conductivity meter.

Electrolytic conductivity measurements are a quick and simple method and are required by enterprises that want to control the quality of their production processes.

Conductivity measurements carried out by accredited laboratories within the framework of water and wastewater measurements are based on TS EN 9748 standard (TS 9748 EN 27888 / T1 Water Quality-Electrical Conductivity Determination standard). With this standard, the integrity of the ionic components is checked and the results depend on the concentration of the ions, the type and quality of the ions, the temperature and the viscosity of the solution.

The reliability of a laboratory's measurements and analyzes is related to the quality of its measurements. Measurement quality is directly proportional to the accuracy and reproducibility of the measurement results. Therefore, authorized laboratories operate in accordance with TS EN ISO / IEC 17025 standard.