2.3 Selection of specimens for evaluation

Type evaluation shall be carried out on at least one specimen, which represents the type. The evaluation shall consist of the examination and tests specified in 2.10.

In case the applicant wants to have several versions or measuring ranges approved, the issuing authority decides which version(s) and range(s) shall be supplied.

If a specimen does not pass a specific test as a result of the design of the type and therefore has to be modified, the applicant shall carry out this modification to all the specimens supplied for test. If the modification has been applied to all sub-types of the family which have the common design defect that required modification, it is then required that the other specimens that have been submitted shall be re-tested. Depending on the modification this may involve a repeat of the specific test or a complete re-test.

If during the evaluation the specimen experiences malfunction or breakage that necessitates a repair in order to complete the test, the applicant shall verify whether this repair concerns an incident or whether a modification will need be made to the design. In the latter case the modification shall be applied to all specimens supplied for the test and the applicable documentation shall be updated accordingly.

If the issuing authority has reason to believe that a modification or repair could cause a different outcome for test result(s) than the result(s) which was observed prior to any modification, these tests shall be repeated. The reason for repeating a test shall be given within the scope of the test report.