drinking water

A changed aluminium result needs context. Define the sample point, treatment stage and verification method before drawing conclusions about coagulation.

Blending changes the context of a nitrate result. Map source and treated-water sample points to the decision your monitoring plan must support.

A changing iron or manganese result can have several possible causes. Start with the sample location, recent operating changes and a defined verification plan.

Free and total chlorine are not interchangeable results. Define the measurand, sample point and response plan before specifying an online monitor.