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Inside a kitchen undergoing a scheduled inspection, this state appointed health inspector was about to test the concentration of this kitchen’s quaternary ammonium chloride (QAC) disinfectant. In her right hand was a bottle containing QAC CR test strips, in her left hand, she held two strips. One had been used, and had undergone a color change. The inspector was comparing the strip’s color, to a color indicator chart on the bottle, in order to determine the QAC concentration, which would be in parts/million (ppm).
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Content Providers(s):CDC/ Amanda Mills
Creation Date:2011
Photo Credit:Amanda Mills
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.