Calverton, Va.-based CHEMetrics has introduced its new 2001-2002 catalog, Perfecting Simplicity in Water Analysis, presents an extensive line of water testing kits that are highly accurate, economical, portable and extremely simple to use. Test kits are available for quantitatively measuring over 50 important analytes in concentrations from parts per billion to percent levels, using simple visual color comparison or a photometric instrument. New USEPA-accepted COD Reagent Vials offer a cost-effective alternative.