ASTM D2603 Test Method for Sonic Shear Stability of Polymer-Containing Oils
10. Report
10.1 Report the result for the sample and the specified reference fluid as the percentage loss of viscosity at 40°C in 10 min. If other irradiation times/temperatures for determination of viscosity or reference fluids are employed, the report shall indicate those facts.
11. Precision and Bias
11.1 Repeatability - The difference between two independent results obtained by the same operator with the same apparatus under constant operating conditions on identical test material would, in the long run, in the normal and correct operation of the test method, differ by 1.6 percentage loss units only in one case in twenty.
11.2 Reproducibility - The difference between two independent results obtained by different operators working in different laboratories on identical test material would, in the long run, in the normal and correct operation of the test method, differ by 3.3 percentage loss units only in one case in twenty.
11.3 Bias - The procedures in this test method have no bias because the results can be defined only in terms of the test method.
12. Keywords
12.1 shear stability; sonic shear test; viscosity stable
