CEN/TC 38/WG 3 - Performances of treated wood

This part of EN 351 gives guidance on the general procedures to be used in the preparation of samples of preservative-treated wood for the determination of penetration and retention of wood preservative.

This part of EN 351 establishes a classification of preservative-treated wood in terms of preservative penetration and gives guidance on a classification of retention. These should be used as a basis for specifying preservative treatments for particular products. This part of EN 351 includes clauses on factory production control and marking.