The pH reagent and CL reagent developed by our institute adopt the late technical directions, and they have been through trial and error to test the pH of active ion water and CL ion. The raw materials are exported abroad.

        This reagent can directly test the ion water ,of which the pH is between 4 and 10, and remnant CL,whose quantity is between 0 and 2.0ppm. According to the different color it turns out, the pH value and the content of CL can be confirmed. It provides good results without any other apparatus.