Accession Number : ADD009949

Title :   A Method for the Particle Size Independent Spectrometric Determination of Metal Particles in Lubricating Oils and Hydraulic Fluids.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Kauffman,Robert E ; Rhine,Wendell E ; Saba,Costandy S

Report Date : 30 Sep 1982

Pagination or Media Count : 17

Abstract : The degree of wear metal contamination in an oil is determined by treating a sample of the oil with a mixture of HF/HCl/nitric acid, diluting the oil/acid mixture with a solvent mixture consisting of a nonionic surfactant and a diluent, and spectrometrically analyzing the resulting diluted mixture. Severe wear in an oil wetted apparatus may be detected by directly analyzing spectrometrically a sample of the oil and comparing the results of such analysis with the results obtained according to the acid dissolution method described above. (Author)

Descriptors :   *Patent applications, *Lubricants, *Wear, *Hydraulic fluids, *Contaminants, *Metals, *Spectrometry, Hydrochloric acid, Hydrofluoric acid, Nitric acid, Solutions(Mixtures), Solvents

Subject Categories : Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE