Eliminate the need for expensive lab equipment with these Hydrion quaternary 0-2000ppm high-range sanitizer / disinfectant test strips. Thanks to this easy-to-use kit, there is no need for technically trained personnel to test 2-chain and 4-chain quaternary sanitizers. With the help of this kit, users can prevent the use of excessive quantities of sanitizing solutions and detect exhaustion of solutions that need replacing. Simply remove a test strip from the vial, dip the color-indicating end into a room-temperature quaternary solution for one second, then instantly compare the resulting color with the color chart. The color that most closely matches signifies the quaternary concentration in your sanitizing or disinfecting solution. Use this kit to retest your quaternary solution every two hours to determine your desired concentration. This product includes a color chart and 100 test strips. The color chart has color matches at 0, 200, 400, 600, 1000, 1500, and 2000ppm (parts per million). The test strips are held in a convenient, plastic dispensing container. This kit meets requirements for federal, state, and local health regulations that require users of quaternary-based sanitizer solutions to verify their strength with appropriate test kits. For accurate results, store these test strips away from areas with high humidity or where they may be exposed to water before use, as those conditions may compromise results. Kit Includes: - (1) Color chart - (100) Test strips