Test Strips and Sanitizers: A Complete Buying Guide
https://blog.etundra.com/food-safety/test-strips-buying-guide/
WebJun 20, 2017 · Chlorine-based sanitizers: Dip the strip into the sanitizing solution, then immediately remove and compare to the color chart. If it reads between 50 ppm and 200 ppm, then the concentration is fine. …
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