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Determination of Alkalinity in Water

Determination of Alkalinity in Water

Determination of Alkalinity in Water


The quantitative capacity of water to react with strong acids up to a specified pH is expressed as alkalinity. Alkalinity analysis, on the other hand, is one of the routine water analyzes performed in drinking water, utility water, waste water, pool water.


The alkalinity test is carried out for the control and evaluation of samples such as drinking water, domestic water, waste water, pool water. Alkalinity analyzes are carried out to determine the resistance of water to hardness and pH value. That is, alkalinity is the sum of carbonate, bicarbonate and hydroxide dissolved in water.

If the alkalinity test result is high in a water sample, resistance to the decrease of the pH level is observed in the environment. In the face of this situation, if the pH value remains high, the disinfection processes applied to the waters may be insufficient. In order to prevent these situations, an appropriate disinfection system can be planned by regularly performing alkalinity analysis of water samples.

  • SM 2320 B: Alkalinity by Titration
  • TS 4182 EN ISO 9963-2 Water quality - Determination of alkalinity - Part:2 Determination of carbonate alkalinity
  • TS 5786 Surfactants - Determination of alkalinity - Titrimetric method

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