ASTM D1319 Test Method for Hydrocarbon Types in Liquid Petroleum Products
ASTM D1319 Standard Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption
12. Report
12.1 Report the averaged value for each hydrocarbon type (corrected to a total sample basis, if oxygenates are present) to the nearest 0.1 volume % and the total volume % oxygenates in the sample as calculated.
13. Precision and Bias
13.1 The following criteria are to be used for judging the acceptability of results (95 % probability):
13.1.1 Repeatability - The difference between successive 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 values in Table 3 or Table 4 only in one case in twenty.
13.1.2 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 values in Table 3 or Table 4 only in one case in twenty.
13.1.3 Table 3 shall be used for judging repeatability and reproducibility of nonoxygenate containing samples. Table 4 shall be used for judging the repeatability and reproducibility of oxygenate-containing samples.
13.2 Bias - Bias cannot be determined because there are no acceptable reference materials suitable for determining the bias for the procedure in this test method.
NOTE 6 - The precision specified in Table 4 was determined for samples which were not depentanized.
14. Keywords
14.1 aromatics; fluorescent indicator adsorption (FIA); hydrocarbon types; olefins; saturates
