Accession Number : ADD011121

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

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Kauffman,R E ; Rhine,W E ; Saba,C S

Report Date : 15 May 1984

Pagination or Media Count : 5

Abstract : The degree of wear metal contamination in an oil is determined by treating a sample of the oil with a mixture of HF/HCI/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 :   *Patents, *Absorption spectra, *Wear, Particles, Lubricating oils, Contamination, Metals, Hydraulic fluids, Acids, Mixtures, Solvents, Particle size

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE