HEALTHINESS EVALUATION METHOD FOR SANITARY WARE

摘要

PROBLEM TO BE SOLVED: To provide a quick and simple evaluation method for the healthiness of sanitary ware. SOLUTION: This is a sanitation evaluation method for the surface of sanitary ware including a process of staining the surface of sanitary ware by an aqueous solution containing crystal violet and a process of visually observing the degree of staining after the completion of the coloring.