ASTM D243 standard test method for residue of specified penetration
8. Report
8.1 Report the results as follows:
8.1.1 Percentageofresidueof——penetration (determined——) stating, first, the specified penetration, and second, the penetration actually determined for the sample tested or calculated by interpolation.
9. Precision and Bias
9.1 With care and proper attention to details, duplicate determinations by this test method should not differ from each other by more than 1.0 % with the same operator nor more than 2.5 % between different laboratories.
9.2 The precision of tests on the residue after heating, other than penetration, has not been determined. The nature of this test method makes it impractical to develop a precision statement.
9.3 Bias - The procedure in this test method has no bias because the property being measured is defined only in terms of this test method.
10. Keywords
10.1 asphalt; cut-back; penetration; residue; road oil
