Litmus Quat test strips

Simple, reliable and inexpensive, Hydrion QT-10 quat test paper determines the concentration of quaternary sanitizers, including Rocall II and n-ADBAC and/or n-alkyl dimethyl ethyl benzyl ammonium chloride. With color matches at 0-100-200-300-400 ppm, the test paper measures concentrations between 0 and 400 ppm (parts per million). The paper detects when solutions are used up and need replacing, and also helps avoid the use of too much sanitizer.