The procedure was a single-blind evaluation in a randomly selected group of panelists from a local institution. The test material was one of several being evainated concurrently on the members of this panel. Each concentration of the test material was assigned a distinct and separate contact site on each panelist for a series of four (4) consecutive twenty-four-hour applications. Starting with the 6.25% concentration, each incremental concentra- tion was to be phased into the study at twenty-four-hour intervals if the skin proved tolerant to the lower concentrations. If the 6.25% concentration proved to be too irritating, a 1% concentration was started, to be followed by 2% and 3% concentrations.