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ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids
ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids9. Report9.1 Report the initial and irradiated 40°C viscosity of the hydraulic fluid.10. Precision and Bias10.1 Repeatability - The difference between two independent results obtained by the same operator with the same apparatus ...
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ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids
ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids8. Procedure8.1 Clean the sonic horn using a lintless wiper and optional solvent and calibrate the apparatus as described in 7.3. Introduce 30 mL of the hydraulic fluid sample to be tested into a clean 50-mL Griffin beaker and ...
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ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids
ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids7. Calibration of Apparatus7.1 The reference fluid provides a practical way to define the performance (severity level) of a sonic oscillator unit so that satisfactory comparison can be made between tests run on different days ...
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ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids
ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids5. Apparatus5.1 Sonic Shear Unit, fixed frequency oscillator and sonic horn.5.2 Auxiliary Equipment - To facilitate uniform performance, the following auxiliary equipment is recommended:5.2.1 Cooling Bath or Ice Bath, to maintain ...
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ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids
ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids3. Summary of Test Method3.1 A convenient volume of hydraulic fluid is irradiated in a sonic oscillator for a period of time and the change in viscosity is determined by Test Method D445. A standard reference fluid containing ...
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ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids
ASTM D5621 Standard Test Method for Sonic Shear Stability of Hydraulic Fluids1. Scope1.1 This test method covers the evaluation of the shear stability of hydraulic fluids in terms of the final viscosity that results from irradiating a sample of the hydraulic fluid in a sonic oscillator.1.2 Evidence has ...
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ASTM D7109 Standard Test Method for Shear Stability of Polymer Containing Fluids
ASTM D7109 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus at 30 and 90 Cycles13. Report13.1 Report the following information:13.1.1 The calibration pressure, in MPa,13.1.2 Kinematic viscosity of the unsheared oil at 100°C,13.1.3 Kinematic ...
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ASTM D7109 Standard Test Method for Shear Stability of Polymer Containing Fluids
ASTM D7109 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus at 30 and 90 Cycles11. Procedure11.1 Flow Rate Adjustment for Test Oil - Open the stopcock on the atomization chamber and drain any previous fluid out of the chamber. Position the ...
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ASTM D7109 Standard Test Method for Shear Stability of Polymer Containing Fluids
ASTM D7109 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus at 30 and 90 Cycles9. Sampling9.1 Approximately 650 mL of fluid is needed per test.9.2 The test fluid shall be at room temperature, uniform in appearance, and free of any visible ...
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ASTM D7109 Standard Test Method for Shear Stability of Polymer Containing Fluids
ASTM D7109 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus at 30 and 90 Cycles6. Apparatus6.1 The apparatus consists of a fluid reservoir, a double-plunger pump with an electric motor drive, an atomization chamber with a diesel injector ...
