EN 20-1:2023
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Wood preservatives - Determination of the protective effectiveness against Lyctus brunneus (Stephens) - Part 1: Application by surface treatment (laboratory method)
06-12-2023
This part of the EN 20 series 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 formulsation, 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-soluble materials, for example salts.NOTE This method can be used in conjuction with ageing procedures, which do not remove the added nutrient.
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