scope:

To investigate unforeseen causes of deterioration in assembled specimens, whether or not constructed from mould-resistant materials by the application of test variant 1 and/or test variant 2 using the required severity given in the relevant specification. a) Test variant 1: by assessing the extent of mould growth after 28 days' incubation and any physical damage caused thereby, and if required by the relevant specification, by checking the effect on functioning of the specimen after incubation extended to a total of 84 days. b) Test variant 2: by assessing the extent of mould growth after 28 days' incubation following quasi-contamination with nutrients and any physical damage caused thereby, and by checking the effect on the functioning of the specimen.