Accession Number : ADA187776

Title :   Standardization of Lubricity Test.

Descriptive Note : Interim rept. Nov 85-Nov 86,

Corporate Author : PRATT AND WHITNEY WEST PALM BEACH FL GOVERNMENT PRODUCTS DIV

Personal Author(s) : Biddle, T B ; Meehan, R J ; Warner, P A

PDF Url : ADA187776

Report Date : Aug 1987

Pagination or Media Count : 37

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.

Descriptors :   *JET ENGINE FUELS, *TEST METHODS, *LUBRICATION, BATCH PROCESSING, CONSISTENCY, FLUIDS, MEASUREMENT, REPRODUCIBILITY, AIRCRAFT ENGINES, SELF LUBRICATION, WEAR RESISTANCE, LUBRICATING FILMS, STANDARDIZATION, MANDRELS, TEST EQUIPMENT

Subject Categories : Lubricants and Hydraulic Fluids
      Fuels
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE