Terry: You have touched on a personal sensitive spot, that of relating "real" or actual cleaning capacity, (or stripping capacity, or functionality in general) to some measurement, like pH or titre. The chemical vendors are notoriously lax in doing things like this. We are all too familiar with the fact that a fresh cleaner solution at concentration X, usually works better than a very old cleaner solution at concentration 2X. This is because the monitor of concentration (usually the titre) is not really monitoring the critical active component(s). Because of the fact that the pH scale is logrithmic (where is spell check?), pH is usually a better check, or monitor of activity, than titre, as long as the pH falls within the range 2-12. Outside of that concentration and pH are not real closely related. Incidently, the reason why pH is a better measure than titre, is that it measures active, or available alkalinity, not total alkalinity. In some cases, and I suspect this is especially the case in saponifiers, the chelation capacity may be the key to the performance of the product, in which case monitoring the dissolved metal level may be the best way to measure the performance. At the end of the day, it is the suppliers responsibility to help you on this sort of matter, lean on them. Rudy Sedlak RD Chemical Company