We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
Standard Test Method for Sonic Shear Stability of Polymer-Containing Oils
STANDARD published on 1.5.2013
Designation standards: ASTM D2603-01(2013)
Note: WITHDRAWN
Publication date standards: 1.5.2013
SKU: NS-20881
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
shear stability, sonic shear test, viscosity stable, ICS Number Code 75.100 (Lubricants, industrial oils and related products)
Significance and Use | ||||||
4.1 This test method permits the evaluation of shear stability with minimum interference from thermal and oxidative factors which may be present in some applications. Within the limitations expressed in the scope of this test method, it has been successfully applied to hydraulic fluids, transmission fluids, tractor fluids, and other fluids of similar applications. It has been found applicable to fluids containing both readily sheared and shear-resistant polymers. Correlation with performance in the case of automotive engine applications has, to date, not been established. |
||||||
1. Scope | ||||||
1.1 This test method covers the evaluation of the shear stability of an oil containing polymer in terms of the permanent loss in viscosity that results from irradiating a sample of the oil in a sonic oscillator. This test method can be useful in predicting the continuity of this property in an oil where no change is made in the base stock or the polymer. It is not intended that this test method serve to predict the performance of polymer-containing oils in service. 1.2 Evidence has been presented that correlation between the shear degradation results obtained by means of sonic oscillation and those obtained in mechanical devices can be poor. This is especially true in the case of automotive engines. Further evidence indicates that the sonic technique may rate different families of polymers in a different order than mechanical devices.1.3 Because of these limitations, the committee under whose jurisdiction this test method falls has developed an alternative shear test method using a diesel injector nozzle, Test Method D3945. While that test method has found some utility in the evaluation of crankcase oils, the stress imparted to the sample has been found to be insufficient to shear polymers of the shear-resistant type found in aircraft hydraulic fluids. 1.4 This test method is used for polymeric additive specifications, especially in the hydraulic fluid market. 1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for informational purposes only. 1.6 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. |
||||||
2. Referenced Documents | ||||||
|
Historical
15.6.2013
Historical
15.4.2009
Historical
1.9.2013
Historical
1.1.2014
Historical
1.5.2011
Historical
15.9.2013
Do you want to make sure you use only the valid technical standards?
We can offer you a solution which will provide you a monthly overview concerning the updating of standards which you use.
Would you like to know more? Look at this page.
Latest update: 2024-05-17 (Number of items: 2 902 148)
© Copyright 2024 NORMSERVIS s.r.o.