pH Reagent 250 Foil (Phenol Red)
The Palintest Phenol Red test uses a tablet reagent containing the precise amount of Phenol Red indicator required for the test.
Phenol Red reacts in water at different pH values over the range 6.8 – 8.4 to produce a distinctive range of colours from yellow to red.
The colour of the test solution is indicative of the pH value and is measured using a Palintest Photometer.
Phenol Red tablets contain a dechlorinating agent so that the test can be carried out in water containing normal levels of Chlorine or other disinfectant residuals.