Accession Number : ADA293043

Title :   Lubricants Quality Analysis System Development. Volume 2. Chemical Characterization of Lubricants.

Descriptive Note : Interim rept. Oct 92-Dec 93,

Corporate Author : SOUTHWEST RESEARCH INST SAN ANTONIO TX BELVOIR FUELS AND LUBRICANTS RESEARCH FACILITY

Personal Author(s) : Fodor, George E.

PDF Url : ADA293043

Report Date : JAN 1994

Pagination or Media Count : 48

Abstract : Major phases of this study included providing the results, critical evaluation, and implications of a literature search in a 'white paper' on advanced analytical methodology for mobility fuels and lubricants applications, assessment of a commercial used engine oil evaluation methodology, and analysis and characterization of new lubricants. In assessing a commercial used oil analysis method, it was concluded that this FTIR-based used oil analysis method should he used only for trend analysis in which the lubricant and the fuel are known and controlled. Efforts were made to characterize and identify lubricants through instrumental analyses, including high-temperature gas chromatography, gel permeation chromatography, elemental analysis, spectroscopic fingerprinting, and establishing FTIR spectral libraries. To increase usefulness of the results of libraries of FTIR spectra data bases have been constructed to include all known specification and inspection data. Calibration curves were established to measure several major lubricating oil additive concentrations in a lubricant base stock, through their FTIR responses. Several increasingly complex experimental protocols are suggested, depending upon the source of lubricant and the needed lubricant property requirements. While a final experimental protocol has not yet been established, a tentative analytical chemical protocol was developed. Present experimental protocol does not address the detection and destruction of antimaterial agents. jg

Descriptors :   *LUBRICANTS, TEST AND EVALUATION, DATA BASES, REQUIREMENTS, SOURCES, MOBILITY, DETECTION, SPECTROSCOPY, HIGH TEMPERATURE, DESTRUCTION, FUELS, ENGINES, ADDITIVES, CALIBRATION, LIBRARIES, CHEMICAL ANALYSIS, CONCENTRATION(CHEMISTRY), GAS CHROMATOGRAPHY, LUBRICATING OILS, ANTIMATERIEL AMMUNITION, GEL PERMEATION CHROMATOGRAPHY, FINGERPRINTS.

Subject Categories : Lubricants and Hydraulic Fluids
      Organic Chemistry
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE