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Single-parameter chemical test strips have a reagent applied to a small piece of paper to test for the presence of specific chemicals, bacteria, and pollutants
The paper is applied to the sample and turns color to indicate the presence and level of the substance detected
The paper is then compared to a key to read the results
This listing is for a pkg
of 10
MICRO ESSENTIAL LABORATORY QT-10 Plastic Hydrion Low Range Quat Check Test Paper Dispenser, Single Roll, Food Service Test Strips, 0-400ppm Pack of 4