How to Measure Chlorine Residual in Water. Technical Notes for Emergencies

Measuring the chlorine residual in a water source is a simple but important method to check if water is safe for drinking. This short factsheet features easy language and pictures describing the measuring method and procedure.

REED, B. (2005): How to Measure Chlorine Residual in Water. Technical Notes for Emergencies. Geneva: WHO URL [Accessed: 08.08.2011]