The point-of-use reverse osmosis drinking water treatment systems addressed by this Standard are designedto be used for the reduction of specific substances that may be present in drinking water supplies (public orprivate) considered to be microbiologically safe and of known quality (except that claims for the reduction offilterable cysts may be permitted). Systems covered by this Standard are intended for reduction of totaldissolved solids (TDS) and other contaminants specified herein. Systems with components or functionscovered under other NSF or NSF/ANSI Standards or Criteria shall conform to the applicable requirementstherein.