Swimming Pool Test (#90752)

This swimming pool test consists of test sticks for the semi-quantitative determination of free chlorine, alkalinity and the pH value of swimming pool water. Parameter: Ranges: Colour change. Free chlorine 0.5 - 10 mg/l Cl2 yellow « violet. Alkalinity 80 - 240 mg/l CaCO3 light green « dark green. pH 6.4 - 8.4 yellow « red. These test sticks are a convenient tool for orienting measurement of three parameters which are very important for swimming pool water. The determination is performed in two steps: The gradation and evaluation of the values for free chlorine, alkalinity and pH on the colour scale follow the rules and limiting values valid for the USA.