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 [...]
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 [...]
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 [...]
Let's say you're testing the free chlorine content of 1% bleach, which has a pH of 11.8. If the pH is reduced to 8, for example, will the colorimetric response of the Extra High Level [...]
Our chlorine test papers are based on the potassium iodide starch reaction. As such, many oxidizing species will cause the paper to turn purple. The iodide that is impregnated in the paper is oxidized to [...]
It is not advisable to use our chlorine test papers to measure chlorine concentrations made with non-regular bleach. Non-regular bleach will turn the test paper blue/purple, however, the bleach formula contains additives that influence the [...]
If you are using the 345 chlorine books to measure chlorine levels, you should use the same chart as the 145 chlorine test papers.
The colors for the 10, 50, 100, 200 ppm chlorine will be the same progressively more purple color. Above 200 ppm the purple will intensify further to the point that it will appear almost black. [...]
The 145 chlorine paper test strips are primarily used for monitoring restaurant and kitchen sanitizing solutions where the target ppm level is between 100-150ppm. These test papers will not work well in pools. Swimming pool [...]