A tin or tin alloy plating film surface treatment aqueous solution that can reduce whiskers on the surface of a tin or tin alloy plating film, and can provide a favorable tin or tin alloy plating film using a simple method for tin or tin alloy plating films that are used on electronic components. Groups of the cells are programmed to respective levels of a predetermined plurality of programming levels, and each cell is then read at a series of time instants to obtain a sequence of read metric values for that cell. The composition of the present invention is useful as an antimicrobial composition which includes, but not limited to, hair care, skin care, oral care, surface cleaning and similar compositions used to cleanse andor treat any living or non-living surface.