Iron (High Reading)
The Palintest Iron HR test is based on a single tablet reagent containing an alkaline thioglycollate.
The test is carried out simply by adding a tablet to a sample of the water under test.
The thioglycollate reduces ferric Iron to ferrous Iron and this, together with any ferrous Iron already present in the sample, reacts to give a pink coloration.
The intensity of the colour produced is proportional to the iron concentration and is measured using a Palintest Photometer.