We need to reduce the portions of these impurities to reduce chances of corrosion.For finding the ppm values we want a special calculator just like the sections per million calculator. If percentages, for every mille, and components per million however confuse you, give this PPM calculator a shot. It is https://cruzwayvs.onesmablog.com/little-known-facts-about-online-ppm-calculator-77542838