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11 - How to measure chlorine residual
www.who.intpressure will drop and contaminated water will enter the pipes through the breaks in the pipe wall. No level of residual chlorine acceptable to consumers will be able to deal with such high levels of contamination. All intermittent water supplies should be assumed to be contaminated and measures taken to disinfect it at the point of use.
11 - How to measure chlorine residual
www.who.intWHO – Technical Notes for Emergencies Technical Note No. 11 Draft revised: 7.1.05 1 How to measure chlorine residual in water World Health Organization The importance of chlorine