ASTM D3235 Standard Test Method for Solvent Extractables in Petroleum Waxes
10. Report
10.1 Report the result as solvent extractables, Test Method D3235, to the nearest 0.1 % by mass. If the result is negative, report as zero.
11. Precision and Bias
11.1 The precision of this test method as determined by statistical examination of interlaboratory results is as follows:
11.1.1 Repeatability - The difference between two test 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, exceed the following values only in one case in twenty:
11.1.2 Reproducibility - The difference between two single and 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, exceed the following values only in one case in twenty:
11.2 The procedure in this test method has no bias because the value of solvent extractables can be defined only in terms of a test method.
12. Keywords
12.1 petroleum waxes; solvent extractables; wax