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TOTAL DISSOLVED SOLIDS MEASUREMENT - IC Controls

TOTAL DISSOLVED SolidsDefinition: TOTAL DISSOLVED SOLIDS (TDS) is ameasure of the sum of all inorganic and organicsubstances in a liquid in molecular, ionized ormicro-granular colloidal suspended form. Thesolids must be small enough to survive filtrationthrough a sieve the size of two micrometer. TDS SOLIDS are normally found in all freshwatersystems. Major applications of TDS are: at lowlevels the study of water quality for streams, rivers,lakes, potable water taste, and at high levels thecontrol of scale in recirculating water systems. It isa quality indicator for drinking water and is ageneral measure of the presence of chemicals.

However, when TDS is measured on line by the IC Controls 210-C(TDS) analyzer, and continuously displayed as ppm TDS or mg/L or can also be displayed as µS/cm conductivity, there is reason to expect scale deposition can be avoided. When TDS is measured on line and control (blowdown) automated with the TDS set point set

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