“…Considerable work has been done to establish the factors by means of which leaching rate may be regulated to provide adequate protection at greatest efficiency. The rate of matrix solubility has been described by Ketchum, Ferry, and Bums {5)\ methods and effects of controlling solubility have been discussed (3). Film permeability has been studied by Young and Schneider (6) and Alexander and Benemelis (2) as a factor in the rate of release of toxic material to sea water.…”