Caption title. At head of title: Project summary. Distributed to depository libraries in microfiche. "June 1988." "EPA/600-S2-88-023."

"The U.S. Environmental Protection Agency (EPA) initiated this program to evaluate an Improved Laboratory Dispersant Effectiveness Test (ILDET) which was developed to replace EPA's Revised Standard Dispersant Effectiveness Test (RSDET). The ILDET has an improved scientific basis and uses more up- to- date laboratory techniques to evaluate dispersants. It is also more precise, easier to carry out, and less expensive than the existing EPA test The full report summarizes the development of the ILDET. The improved test provides a method to evaluate dispersant effectiveness in a physically realistic condition. The test energy level is dynamically similar to the small-scale ocean turbulence responsible for droplet formation. A preliminary evaluation of the test was conducted to assess the various factors that may affect the precision of the test. The preliminary evaluation shows a possible improvement in precision over the existing EPA method."