12 Expression of results
Report the flash point, corrected to standard atmospheric pressure, rounded either to the nearest 0.5 °C or to the nearest 1.0 °C, as specified.
Report the test interval (0.5 °C or 1.0 °C).
Report the ambient barometric pressure in the vicinity of the apparatus (see 10.1.5).
13 Precision
13.1 General
The precision given in 13.2, 13.3 and Table 1 was derived from statistical examination of interlaboratory test results on matrices of petroleum and related products, a matrix of FAME products and matrices of paints, enamels, lacquers, varnishes and related products with a viscosity of less than 150 mm2/s at 25 °C.
13.2 Repeatability, r
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 1 in only one case in 20.
13.3 Reproducibility, R
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 1 in only one case in 20.
NOTE The following values have been calculated from the precision values given in Table 1 for petroleum and related products.
14 Test report
The test report shall contain at least the following information:
a) a reference to this International Standard;
b) the type and complete identification of the product tested;
c) the result of the test (see Clause 12);
d) any deviation, by agreement or otherwise, from the procedures specified;
e) the date of the test.