EN 113-3:2023

This document describes a method for assessing the durability of wood-based panels or analogue wood products to attack by wood-destroying basidiomycete fungi growing in pure culture.The test method described in this document is intended to complement EN 113-2 with focus on specific aspects of wood-based panels or analogue wood products. This document is not intended to determine the effectiveness of wood preservatives used to prevent decay, which is covered by EN 113-1.NOTEThis method can be used in conjunction with an appropriate ageing procedure, for example EN 73 or EN 84.The method is applicable to uncoated, rigid wood-based panel products. It is applicable to the determination of the decay resistance of wood-based panel products:-made from naturally durable materials;-made from materials treated with preservatives prior to manufacture;-treated with a preservative which is introduced during manufacture, for example as an additive to the adhesive;-specific treatments to increase durability of wood-based panels, e.g. wood modification.Annex A (informative) contains a guidance on sampling.Annex B (normative) contains some methods of sterilization.Annex C (informative) contains information on the culture vessels.Annex D (informative) contains an example of a test report.Annex E (informative) contains information on the test fungi.Annex F (informative) contains the assessment of the results.Annex G (informative) contains extra info on moisture dynamics, coatings, composites and impact of dimensions.