||Serial-Dilution Apparatus for Continuous Delivery of Various Concentrations of Materials in Water.
Mou, Donald I. ;
Warne, Richard E. ;
||Robert A. Taft Sanitary Engineering Center, Cincinnati, Ohio.
( Water ;
Chemical analysis) ;
( Minerals ;
( Laboratory equipment ;
Water pollution ;
Aquatic animals ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The paper describes a serial-dilution apparatus designed to deliver continuously a series of different concentrations of a material in water. The materials needed for construction normally would be available in a chemistry laboratory. No electrical power is needed for operation, and the apparatus will remain accurate even if the influent waterflow varies over a wide range. It maintains accuracy of 10 percent or less for periods of time up to 30 days or more with very little servicing or adjustment, and the cost is $50 or less. (Author)