Precision Laboratories QAC test papers and strips utilize an effect commonly referred to as the “protein-error of indicators” to quantify the QAC ppm levels. While first observed with proteins (thus the name), the technique utilizes [...]
A health inspector using QT-40 test strips compared their results to a customer using our QAC QR5 test strips, and the results were the same. The strips, however, are different in color and appearance. So, [...]
Yes. For example, or Chlorine paper (10-200ppm) will get a good reading, but the Mid-Level chlorine plastic strip (0-200ppm) will not work with trichloramines. The difference is explained by the "type" of chlorine that each [...]
Iodine solutions prepared at the concentrations on the color chart should react with the paper. It is important to dip the strip the full 60 seconds. The reaction takes place very slowly. On the other [...]
Can the Quick Response QAC (QAC-400) test strips be used to test clean surfaces by first dipping the strip in distilled water, and then pressing on a dry, cleaned food contact surface to obtain a [...]
The potassium iodide test papers use the potassium iodide starch reaction. The iodide is oxidized to iodine that then reacts with the starch to form the blue/purple color. The strips can be used directly in [...]
The color scale for the 0-100 ppm peroxide strip is very dependent on the pH of the solution being tested. The test pad on the strip is buffered in the range of 5.5-6.0. The capacity [...]
The 0-200 ppm chlorine test paper (145) performs best in neutral pH solutions (pH 6-8). High pH may slightly suppress the color development resulting in slightly lower results. Acidic waters do not appear to affect [...]
Peracetic acid formulations usually contain acetic acid and hydrogen peroxide to stabilize the peracetic acid. The Precision Laboratories PAA test strips have been developed to determine the peracetic acid level in the presence of acetic [...]
Both the Chlor-Assure and the Mid-Level Chlorine test strips measure up to 200ppm. Both strips are complimentary to our Chlorine test Papers, although they have a slightly different chemistry. The Chlor-Assure test strips offer a [...]