BALLAST WATER MEASUREMENT APPARATUS, SHIP COMPRISING BALLAST WATER MEASUREMENT APPARATUS, AND BALLAST WATER MEASUREMENT METHOD

摘要

An object of the present invention is to increase the accuracy of water quality measurement of ballast waters with different oxidant concentrations. A ballast water measurement apparatus (2 or 62) is provided with: a first measuring unit (6-1 or 64-1) for measuring an oxidant concentration of ballast water after addition of an oxidant or ballast water before addition of a neutralizing agent; a second measuring unit (6-2 or 64-2) for measuring an oxidant concentration of ballast water after neutralization of the oxidant; and a casing (4) that accommodates the first measuring unit and the second measuring unit. Oxidant concentration measurement ranges of the first measuring unit and the second measuring unit are different.