PROBLEM TO BE SOLVED: To provide a composition hardly generating deposit and excellent in storage stability while containing a triazine-based compound and an isothiazoline compound in high concentrations.SOLUTION: A liquid composition is obtained by mixing (A) a triazine-based compound of 7.0 to 40.0 mass%, (B) an isothiazoline compound of 7.0 to 40.0 mass%, (C) an organic solvent having solubility to water of less than 1 g/100 g-HO of 5.0 to 70.0 mass% and (D) an organic solvent having the melting point of 0 to 20°C and solubility to water of 1 g/100 g-HO or more of 5.0 to 25.0 mass%, where total of components (A), (B), (C) and (D) is 100 mass%.SELECTED DRAWING: None
