ASTM D5001 Lubricity of Aviation Turbine Fuels Tester (Ball-on-Cylinder Lubricity Evaluator BOCLE)

Product model: JF0687

Instrument introduction

The instrument is used to measure the wear condition of the boundary lubricity of aviation turbine fuel on the surface of friction steel. Testing Principles: The fluid under test is placed in a test reservoir in which atmospheric air is maintained at 10 % relative humidity. A non-rotating steel ball is held in a vertically mounted chuck and forced against the outside diameter of an axially mounted cylindrical steel ring with an applied load. The test ring is rotated at a fixed speed while being partially immersed in the fluid reservoir. This maintains the ring in a wet condition and continuously transports the test fluid to the ball/ring interface. The wear scar generated on the test ball is a measure of the lubricating property of the fluid.

Technical Parameter

1. Applicable standards: ASTM D5001, SH/T0687 

2. Sample Volume: 50 ± 1.0 mL

3. Sample Temperature: 25 ± 1℃

4. Fluid ambient temperature: + 5.0 ～+35.00℃

5. Air flow rate into the Sample: 0.5 L/min

6. Air flow rate at specimen surface: 3.3 L/min

7. Sample preparation time: 15min

8. Conditioned Air: 10 ± 0.2 % relative humidity at 25 ± 1℃

9. Fluid test conditions: 3.8 L/min flowing over the fluid

10. Applied load: 1000g(500g weight)(±1g)

11. Cylinder Rotational Speed: 240 ± 0.5 rpm

12. Test Duration: 30 ± 0.1 min

13. Data acquisition and analysis: Motor speed, fuel temperature, air temperature, humidity and test time.

14. Test ring: Dia 49.25 to 49.10, Thk 13.11 to 13 (SAE 8720 Steel, Hardness 58 to 62 Rc, surface finish Rq 0.51 to 0.71 micron).

15. Test Ball: 12.7mm (0.5 inch) (AISI 52100 Steel, Hardness 64 to 66 Rc)

16. Power supply: 230V AC, single phase, 5A

Main Feature

1. Microcomputer control, colour LCD display, can intuitively operate and display the whole process of the test.

2. Simple to use interface: digital computer controls all instrument functions.

3. Standard ASTM D5001 test procedures are pre-loaded into the ABT microprocessor controller: the operator installs the cleaned specimen, adds the fuel sample and presses the "Start Test" button.

4. The test sequence is automatically controlled: no operator intervention is required during the measurement process.

5. Automatic flow controller for humid and dry air: no operator control is required to regulate air humidity and flow.

6. Interchangeable humidity and temperature probes: Humidity and temperature measurements do not need to be recalibrated, simply replace the combined RH and temperature probes with an exchangeable pre-calibrated unit.

7. Heating and cooling system: Pall-paste heating and cooling system.

8. Digital microscope with image acquisition system and software.

9. All parameters: motor speed, test time, fuel temperature, air temperature, humidity data, etc. are directly displayed.

     10. Ultrasonic cleaner.