Hydrion QT-40 Quaternary Sanitizer Test Tape 15 feet Roll Quat Color Chart 0-500 ppm Range Description Hydrion QT-40 Quaternary Test Paper provides a simple, reliable, and economical means to measure the concentration of Quaternary Sanitizers, particularly muli-quat broad range quaternary ammonium sanitizer solutions. With color matches at 0-150-200-400-500ppm (parts per million), the test paper measures concentrations between 0-500ppm, detecting exhaustion of solutions that should be replaced as well as helping to avoid using excessive amounts of sanitizing agents. Features: Provides a simple, reliable, and economical means to measure the concentration of Quaternary Sanitizers, particularly multi-quat broad range quaternary ammonium sanitizer solutions Sanitizer solutions are essential in the food service industry to ensure that sanitizers are at the proper concentration Quick Results: This test produces quick results; Simply tear off a small strip of the test paper, dip it into your sanitizing solution for 10 seconds, and instantly compare the resulting color with the matching color chart Convenient Case: Since the test papers are packaged in a plastic case, they'll have some level of protection from water and other liquids that can cause them damage; However, they should not be stored in humid environments; Also, the case has a serrated edge that makes it easy for users to tear off a strip of the test paper; Additionally, instructions are printed on the case for the user's convenience Product Details: Brand: Micro Essential Labs Unit Count: 1.0 Count Material: Paper Is Discontinued By Manufacturer ‏ : ‎ No Package Dimensions ‏ : ‎ 2.36 x 2.01 x 0.67 inches; 0.35 Ounces Item model number ‏ : ‎ QT-40 Date First Available ‏ : ‎ April 3, 2012 Manufacturer ‏ : ‎ Day Dots Country of Origin ‏ : ‎ USA Best Sellers Rank: #2,625 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #11 in pH Test Strips #11 in pH Test Strips Customer Reviews: 4.7 4.7 out of 5 stars 1,834 ratings