Methods for the Determination of Chloride in Battery Water

Three methods for the determination of chlorides in battery water have been studied, Two of these methods have used the turbidity of silver chloride solutions as a means of measurement. In the first, this is done visually and in the second, a photoelectric cell is used. Both methods require about 20 minutes for a constant and reproducible reading. The third method uses the conductivity of the water as a measure of its chloride content. The third method has been recommended as superior to the others because of its simplicity. It requires no chemicals and gives an instantaneous reading. It is actually only a modification of the present Navy salinity indicator.