Noble Chemical CM-240 chlorine test paper is the simple, reliable, and economical way to measure the concentration of free available chlorine in sanitizing solutions. This test paper measures concentrations between 10-200ppm (parts per million), with color matches at 10, 50, 100 and 200ppm. The distinct color match at each full unit makes it easy for the user to identify the correct chlorine level. Simply tear off a small strip of test paper, dip into the sanitizing solution, blot with paper towel, then instantly compare the resulting color with the matching chlorine color chart. The paper is held in a convenient, plastic dispensing container. This test's distinct color chart and accurate, reproducible readings give an immediate response for quick and easy use.
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