13. Report
13.1 Report the source, type and identification of the material tested, plus the dates sampled and tested.
13.2 Refer to this test method and report any deviation, by agreement or otherwise, from the procedure specified.
13.3 Report the corrected flash point of the test specimen rounded to the nearest 0.5 °C in accordance with Test Method D7236.
14. Precision and Bias
14.1 The precision data were developed in a 2004 cooperative test program involving 13 laboratories and 8 samples comprising 3 diesel fuels, 2 kerosines, 2 jetA/A1 fuels and hexadecane. The precision statements for both repeatability and reproducibility cover the range 40 °C to 135 °C.
14.2 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 only in one case in twenty.
r = 0.01285(x + 40) for the flash point range 40 °C to 135°C
where:
x = the average of results being compared.
14.3 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 correct operation ofthe test method, exceed the following only in one case in twenty. For examples of precision, see
R = 0.02482(x + 40) for the flash point range 40 °C to 135°C
where:
x = the average of results being compared.
14.4 Bias - Since there is no accepted reference material suitable for determining the bias of the procedures in Test Method D7236, bias cannot be determined.
14.5 Relative Bias to Test Methods D3828, Method B - An indication of relative bias for the sample set involved in the interlaboratory test program is given in Appendix X2.
15. Keywords
15.1 automatic; closed cup; flammability; flash point; ramp; small scale