ÖNORM EN 599-1

This Part of EN 599 specifies for each of the five hazard classes defined in EN 335-1, the minimum performance requirements for wood preservatives for the preventive treatment of solid timber against biological deterioration. It specifies the biological tests with the minimum ageing tests required according to the hazard class, together with the performance criteria to be achieved in each test. This Part of EN 599 is applicable to all wood preservative products supplied for application in liquid form for the preventive treatment of timbers (structural and non-structural) against wood-attacking fungi, wood-attacking insects and marine borers as described in HD 1001 and EN 335-1. However it is only applicable to products for preventive treatments against fungi causing disfigurement (blue stain) of wood in service if this forms part of the overall preventive effectiveness of the product. This Part of EN 599 is not applicable to wood preservative products supplied for application = s pastes, solids or in capsule form because they cannot be tested without modification of the biological tests demanded in this standard. It does not apply either to wood preservative pro ducts for remedial (curative) treatments, to those applied to prevent fungi causing sap stain on green (unseasoned) timber or to those applied solely to prevent fungi causing disfigurement (blue stain) of wood in service. NOTE 1 : The nature of the laboratory and field tests required in this Part of EN 599 to demonstrate performance of a wood preservative are such that the time required to generate the data is many months or years, depending upon the properties of the wood preservative and the hazard class in which the treated wood is to be exposed. Therefore, at the date of publication of this Part of EN 599, for many products covered under its scope already placed on the market and used lawfully in accordance with local technical traditions, t (...abbreviated)