Water quality parameter

Free chlorine testing in Ethiopia

Free chlorine is the disinfectant left in the water after treatment. Measuring it at the tap shows whether the dose held all the way through the network or was used up on the way. Palintest reads free chlorine by the DPD method, on a colour comparator for a quick check or on a photometer when you need a number you can record.

Why it matters in Ethiopia

WHO guidance for drinking water is a free chlorine residual of 0.2 to 0.5 mg/L at the point of delivery. On long gravity lines and in tankered supply the residual falls between the plant and the household, so utilities, NGOs and camp operators test at several points on the same run rather than only at the source.

12 products in the Wagtech Trading catalog measure Free chlorine.

Instruments and kits

Reagents and consumables

Related parameters