CSN EN 20-1

CSN EN 20-1 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-based preservatives, for example salts. NOTE - This method can be used in conjuction with ageing procedures, which do not remove the added nutrient.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.