10 Precision
10.1 Interlaboratory test
An interlaboratory test organized in 2008 at European level with the participation of 16 laboratories, each having carried out two determinations on each sample, gave the statistical results indicated in Annex D.
10.2 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 values given in Table 2 in absolute value in only one case in twenty:
10.3 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 value given in Table 3 in only one case in twenty.
11 Test report
The test report shall specify:
a) a reference to this European Standard;
b) the type and complete identification of the product tested;
c) the used method of sampling (see Clause 6);
d) the result of the test (see Clause 9), or if the repeatability has been checked, the final quoted result obtained;
e) all operating details not specified in this European Standard, or regarded as optional, together with details of any incidents which may have influenced the test result(s);
f) the date of the test.