ELECTROLYTIC TESTER

PROBLEM TO BE SOLVED: To provide an electrolytic tester wherein piping structure is simplified and running cost can be reduced. SOLUTION: This electrolytic tester is equipped with the following; an electrolytic vessel 12 for storing electrolyte 11, an exhauster for sucking and discharging harmful gas which floats above the surface (f) of the electrolyte, a suction pipe corresponding to the exhauster, and an overflow pipe 41 which discharges excessive electrolyte when the amount of electrolyte exceeds a defined value. In order to make an inlet side pipe part 305 of the overflow pipe 41 serve as a suction pipe, a suction inlet 42 is installed in the inlet side pipe part 305. An adsorbing part member 43 for adsorbing harmful gas is arranged in a part nearer to an inlet side 307 than to the suction inlet 42, in the inlet side pipe part 305. Thereby the piping of the suction system and the overflow system is collectively constituted, so that a new adsorbing part member 43 is commonly applied to both of the systems in the case of exchange of adsorbing part members.