DIN EN 20-1
Wood preservatives - Determination of the protective effectiveness against Lyctus brunneus (Stephens) - Part 1: Application by surface treatment (laboratory method); German version EN 20-1:2023
Holzschutzmittel - Bestimmung der vorbeugenden Wirkung gegenüber Lyctus brunneus (Stephens) - Teil 1: Oberflächenbehandlung (Laboratoriumsverfahren); Deutsche Fassung EN 20-1:2023
Overview
This European Standard specifies a method for the determination of the protective effectiveness or the toxic values of a wood preservative against infection by Lyctus brunneus (Stephens) when the product is applied as a surface treatment to wood. This method is applicable to: - water-insoluble chemicals which are being studied as active insecticides; or - organic formulation, as supplied or as prepared in the laboratory by dilution of concentrates; or - organic water-dispersible formulations as supplied or as prepared in the laboratory by dilution of concentrates; or - water-based preservatives, for example salts. Compared to DIN EN 20-1:1992-09, the source of the peptone is no longer specified and, under certain circumstances, other types of wood may be used for testing instead of oak. Tests with solvents for control purposes may be omitted if the solvent is water. New pictures have been used for Figures B.1, B.2, and B.3. The responsible national standardization committee is Working Committee NA 042-03-06 AA "Spiegelausschuss zu CEN/TC 38 Dauerhaftigkeit von Holz und Holzprodukten" ("Mirror committee for CEN/TC 38 durability of wood and wood products") at DIN Standards Committee Timber and Furniture (NHM).
Responsible national committee
NA 042-03-06 AA - Mirror committee for CEN/TC 38 durability of wood and wood products
