How do you measure alkalinity in a solution?

Alkalinity in a solution is typically measured using a titration method with a strong acid, such as sulfuric acid, to determine the amount of acid needed to neutralize the alkaline substances present. The endpoint of the titration is usually indicated by a color change using a pH indicator, such as phenolphthalein or bromothymol blue. The amount of acid required to reach the endpoint is then used to calculate the alkalinity of the solution.