Standardization of Lubricity Test.

Abstract

Since the early 1960s the Ball-on-Cylinder Lubricity Evaluator (BOCLE) test has been recognized as the best available method for providing a relative system of measurement of the lubricity properties of jet engine fuels. The technical effort described in this report was directed at refining and standardizing the (BOCLE) test. It focused on identifying variables suspected of affecting test method precision. The Falex Ring was shown to significantly enhance BOCLE test precision and eliminate many of the problems associated with the conventional AMS 6444 test cylinder. Test results showed that the source of the test ball can have a significant effect on BOCLE test results. SKF Swedish precision balls were found to provide optimum batch to batch consistency. Isopar M + 30 ppm DuPont DCI-4A was shown to be a reproducible fluid suitable for use as a standard reference fluid for BOCLE testing.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1987
Accession Number
ADA187776

Entities

People

  • P. A. Warner
  • R. J. Meehan
  • T. B. Biddle

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • Biomedical
  • Human Systems

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Chemical Properties
  • Chemistry
  • Fuel Systems
  • Fuels
  • Hydrocarbon Fuels
  • Hydrocarbons
  • Jet Engine Fuels
  • Materials
  • Materials Science
  • Measurement
  • Physical Properties
  • Standardization
  • Standards
  • Surface Tension
  • Test Methods
  • United States

Readers

  • Aerospace Test and Evaluation
  • Petroleum Engineering
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).