Accession Number : AD0786353

Title :   Determination of the Thickness of Petroleum Films on Water.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Barger,William R. ; Sherard,David R. ; Garrett,William D.

Report Date : AUG 1974

Pagination or Media Count : 18

Abstract : Two devices have been developed to determine the thickness of petroleum films on water. Both techniques use oil collectors which quantitatively remove the oil layer from a known surface area. The devices are weighed before and after being placed on the oil-covered water, and a small correction factor for entrained water is applied to the calculation of oil layer thickness. Recticulated, polyurethane foam discs are mounted in an open-ended cylinder to form a floating oleophilic sponge. When placed on the water, oil is absorbed within the confined cylindrical area. The second collector, a hydrophilic Teflon sheet, removes thin layers of oil from water upon contact. Because of its chemically inert character, the hydrophilic Teflon collector is useful for sampling spills for chemical identification and analyses. (Modified author abstract)

Descriptors :   *Films, *Thickness, *Samplers, Oils, Surfaces, Oil spills, Collecting methods

Subject Categories : Physical Chemistry
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE