Patent ID: 8343768

Claim:
A method for determining the effectiveness of an oxidative germicidal process, the method comprising: testing the oxidative germicidal process by treating a known amount of a first chemical with an oxidative germicide selected from the group consisting of hydrogen peroxide, peracetic acid, ethylene oxide, ozone, and chlorine dioxide, the oxidative germicide thereby decreasing the known amount of the first chemical to a final amount of the first chemical; wherein the first chemical has a first color and is selected from a first group consisting of at least one primary amine or a second group consisting of at least one aldehyde that reacts with the at least one primary amine; contacting the final amount of the first chemical having the first color with a second chemical having a second color, wherein the second chemical is a chemical selected from the first group when the first chemical is a chemical selected from the second group or wherein the second chemical is a chemical selected from the second group when the first chemical is a chemical selected from the first group; producing a third chemical compound having a third color, the third color having an intensity, wherein the intensity of the third color is related to the final amount of the first chemical; determining the intensity of the third color; and determining the effectiveness of the oxidative germicidal process from the intensity of the third color.