ASTM D7060 Test Method for Determination of the Maximum Flocculation Ratio and Peptizing Power in Residual and Heavy Fuel Oils (Optical Detection Method)
14. Report
14.1 Report the following information:
14.1.1 A reference to this test method,
14.1.2 The sample identification,
14.1.3 The date of the test,
14.1.4 The calculated maximum flocculation ratio (FRmax) to the nearest 1 volume %,
14.1.5 The calculated peptizing power (Po) to the nearest 1 volume %, and
14.1.6 Any deviation, by agreement or otherwise, from the specified procedures.
15. Precision and Bias
15.1 The precision statements for maximum flocculation ratio and peptizing power are based on results from a within-laboratory study. The study involved nine samples and covered the maximum flocculation ratio range from 16 to 57 and the peptizing power range from 27 to 96.
15.1.1 Repeatability - The difference between successive results obtained by the same operator with the same apparatus, under constant operating conditions, on identical test materials 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:
maximum flocculation ratio (FRmax): r = 3
peptizing power (Po): r = 6
NOTE 12 - An interlaboratory round robin will be run. The repeatabilitydata in 15.1.1 will be updated accordingly.
15.1.2 Reproducibility - The reproducibility of this test method is being determined and will be available on or before 2009.
15.2 Bias - This test method has no bias because the results of the test are defined only in terms of this test method.
16. Keywords
16.1 compatibility; heavy fuel oil; maximum flocculation ratio; peptizing power; P-ratio; residual fuel oil
