Chlorine bleach at concentrations of at least 1000ppm is an effective germicide for dangerous pathogens such as MRSA (Methicillin Resistant Staphylococcus aureus), VRE (Vancomycin Resistent Enterococci) and Clostridium difficile. The High Level Chlorine ( 0-1,000ppm) test strip is suitable for use with Deardorff-Fitzsimmons ACTIVATE disinfectant (5.25% Sodium Hypochlorite solution) for in vitro control of such dangerous pathogens.
However, the removal of free chlorine by organic contamination (blood/feces) can seriously reduce the sanitizing effects of chlorine cleaning solutions. To ensure the 1000ppm minimum strength for adequate disinfection, much higher initial concentrations, up to 10,000ppm (1%) chlorine levels are recommended to counteract this and can be check with our Extra High Level Chlorine (0-10,000ppm) test strip.