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  • What is Total Dissolved Solids (TDS)?

    Source: WQA

    The total weight of the solids that are dissolved in the water, give in ppm per unit volume of water. TDS is determined by filtering a given volume of water (usually through a 0.45 micron filter), evaporating it at a defined temperature (usually 103-105 degrees Celsius), and then weighing the residue.

    Total Dissolved Solids in Water Graph