I am surprised by how well it works. I didn’t really use it to tell what concentration of hypochlorite is in a sanitizer which is what this product is aimed at. I wanted to know whether my dish detergent contained bleach (I want to improve the performance of the powdered detergent and needed to know whether it contained bleach before I started adding other chemicals to it).
I wasn’t sure what to use to tell as there are quite a few other chemicals in the powder which could interfere but these strips told me all I needed to know instantly. I plan on bringing the rest to work so we can see if certain detergents or sanitizers contain bleach so they don’t damage our stainless steel equipment.