Sometimes I expect more when I read. Headline like this one, probablyq because I am alive.
click the image to visit the website
Reading further this is a company that sells chlorine and sulphite based chemicals for fruit and vegetable rinsing. They now offer a service based on analysing the untreated water and developing a custom dosage regime for the factory's particular circumstances.
I would have thought that the chemical dosage is normally done on site using trial and error, but it makes publicity and marketing sense.