ISO 14596 Petroleum products - Determination of sulfur content - Wavelength-dispersive X-ray fluorescence spectrometry
11 Expression of results
Report the sulfur content, as a percentage by mass, rounded to the nearest 0.000 1 % (m/m) between 0.001 0 % (m/m) and 0.009 9 % (m/m), to the nearest 0.000 1 % (m/m) between 0.010 0 % (m/m) and 0.099 9 % (m/m), and to the nearest 0.01 % (m/m) between 0.10 % (m/m) and 2.50 % (m/m).
12 Precision
12.1 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 values given in Table 2 in only one case in twenty.
12.2 Reproducibility
The difference between two single and independent test 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 given in Table 2 in only one case in twenty.
13 Test report
The test report shall contain at least the following information:
a) a reference to this International Standard (ISO 14596:2007);
b) the type and complete identification of the product tested;
c) the sampling procedure used (see Clause 6);
d) the result of the test (see Clause 11);
e) any deviation, by agreement or otherwise, from the procedure specified (e.g. see 9.1);
f) the date of the test.
