Electrical Conductivity Test Of Water

High quality deionized water has a conductivity of about 0 5 μs cm at 25 c typical drinking water is in the range of 200 800 μs cm while sea water is about 50 ms cm or 50 000 μs cm.

Electrical conductivity test of water.

Conductivity is a measure of the ability of water to pass an electrical current. This ability is directly related to the concentration of ions in the water 1. Conductivity is traditionally determined by connecting the electrolyte in a wheatstone bridge. Calibrate the conductivity meter as per the directions were given by the manufacturer s manual using standard solutions.

Conductivity in water is affected by the presence of inorganic dissolved solids such as chloride nitrate sulfate and phosphate anions ions that carry a negative charge or sodium magnesium calcium iron and aluminum cations ions that carry a positive charge. Conductivity is a measure of water s capability to pass electrical flow. This experiment tests the conductivity of water with different dissolved compounds. The electrical conductivity of water estimates the total amount of solids dissolved in water tds which stands for total dissolved solids.

Interestingly if the water contains very large amounts of solutes and ions then the water becomes such an efficient conductor of electricity that an electrical current may essentially ignore a human body in the water and stick to the better pathway to conduct itself the masses of ions in the water. Ec water conductivity test equipment can be used in the field to take direct measurements of water. Electrodes are used to conduct electrical currents in order to test certain properties of liquids e g how conductive they are. Tds is measured in ppm parts per million or in mg l.

It has multiple applications in research and engineering with common usage in hydroponics aquaculture aquaponics and freshwater systems to monitor the amount of nutrients salts or impurities in the water. Salts dissolve in water to produce an anion and a cation. How to conductivity of disso. The below steps gives details about how to measure the electrical conductivity of water.

Ionic and covalent conductivity is compared. An electrical conductivity meter ec meter measures the electrical conductivity in a solution. Factors affecting the electrical conductivity of water. Inline meters are installed permanently in certain locations in a production line to measure water quality characteristics including conductivity in real time.

An ec meter makes testing and monitoring the electrical conductivity of water simple.