Clean Test is a swab for the detection of protein, fat and sugar residues suitable for the check of work surfaces cleaning level.
The method, based on the reaction of bicinchoninic acid, produces a purple coloring directly proportional to the concentration of proteins, fats and sugars present on a surface. A pale green, colorless or clear light grey coloring assures the proper cleaning of the surface. In case of a dark grey solution it is suggested to rinse the surface and/or repeat the test. If the solution turns to light or dark purple, a new cleaning cycle of the surface with suitable detergents is needed.