ClO2 Test Strips (0 to 10PPM), pack of 50 strips

Operational Qualification & Test Strip Description: Low Range, Ultra-Low Range. The low range series test strips for measuring chlorine dioxide incorporates the following: a redox indicator, buffer, and chlorine inhibitor. These test strips are formulated to test chlorine dioxide, via colorimetric analysis, in the range of 0-10ppm. The reaction of chlorine dioxide with the redox indicator yields a pink color proportional to the amount of chlorine dioxide present. These strips inhibit 1.5ppm chlorine or greater. Bromine, iodine, and permanganate will deliver a positive interference. Free chlorine above 2ppm will also deliver a positive interference. High levels of chloramine and monochloramine will slowly interfere with the accuracy of chlorine dioxide measurement. Hydrogen peroxide, even at 3%, does not interfere. Chlorite does not yield a positive interference (up to 750ppm) nor does it consume or interfere with the chlorine inhibitor. No other significant interference is noted when testing with 5ppm iron, copper or manganese, 20ppm quat, 40ppm polyquat, chelant to remove 5ppm metals, 1ppm copper algaecide, at pH 6-8.4, at temperatures 15C-40C. 100ppm cyanuric acid may affect the accuracy of the test strip, causing low colorimetric readings.