ASTM D 5621 : 1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Sonic Shear Stability of Hydraulic Fluid
11-11-2014
31-12-2010
| Committee |
D 02
|
| DocumentType |
Test Method
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy |
1.1 This test method covers the evaluation of the shear stability of a hydraulic fluid in terms of the final viscosity that results from irradiating a sample of the hydraulic fluid in a sonic oscillator.
1.2 Evidence has been presented that a good correlation exists between the shear degradation that results from sonic oscillation and that obtained in a vane pump test procedure.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.4 This test method uses millimetres squared per second (mm ²/s), an SI unit, as the unit of viscosity. For information, the equivalent unit, cSt, is shown in parentheses.
| ASTM D 6022 : 2006 : R2012 | Standard Practice for Calculation of Permanent Shear Stability Index |
| ASTM D 6080 : 2018 : REV A | Standard Practice for Defining the Viscosity Characteristics of Hydraulic Fluids |
| ASTM D 6022 : 2019 | Standard Practice for Calculation of Permanent Shear Stability Index |
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