Standardization of Lubricity Test

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 stan...

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Bibliographic Details
Main Authors: Biddle, T B, Meehan, R J, Warner, P A
Format: Report
Language:English
Subjects:
AIRCRAFT ENGINES
BATCH PROCESSING
BOCLE(Ball-on Cylinder Lubricity Evaluator)
CONSISTENCY
F-111 aircraft
Falex ring
FLUIDS
Fuels
JET ENGINE FUELS
Lubricants and Hydraulic Fluids
LUBRICATING FILMS
LUBRICATION
Lubricity fuels
MANDRELS
MEASUREMENT
PE62203F
REPRODUCIBILITY
SELF LUBRICATION
STANDARDIZATION
TEST EQUIPMENT
Test Facilities, Equipment and Methods
TEST METHODS
WEAR RESISTANCE
WUAFWAL30480551
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Summary: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.