This method describes the titrimetric determination of the oxygen content of boiler feed water using iodine comparison. If the oxygen content of boiler water exceeds a certain threshold, it can cause corrosion to occur. Maintaining the boiler water at a higher pH can reduce the risk of corrosion.
Boiler feed water for use in the production of beer and other foods
Refer to W-000.40.115 Oxygen in Water, Titration Method According to WINKLER
Given the very low levels of oxygen present in boiler water, a method employing iodine comparison is recommended. In this analysis, the blank value of the reagent is measured by titrating a water sample free of Mn2+ (“red”).