ÖNORM EN 351-1

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 fo: particular products. This part of EN 351 includes clauses on factory production control and marking. This part of EN 351 is applicable to the production of preservative-treated solid wood, including glued laminated timber, suitable for use in those service conditions defined by the hazard classes in EN 335-1. It does not apply to any subsequent exarnination of treated wood in service. This part of EN 351 is applicable to the protection of wood against attack by wood destroying and wood-disfiguring fungi, insects and marine organisms. This part of EN 351 does not consider those other properties of treated wood, for example odour, conosivity and compatibility with other matenals. Nor does it consider any properties from the health, safety and environmental point of view. This patt of EN 351 does not apply to wood to be treated with fonnulations, which are applied to timber in service to eliminate or control an existing fungal or insect infestation, or the prevention of attack by sapstain fungi, or insects in green timber.