Wood preservatives. Determination of the protective effectiveness against Lyctus brunneus (Stephens) - Application by impregnation (laboratory method) Ingestion-build-202139 BS EN 50121-3-2 define limits

BS EN 50121-3-2 define limits and test methods for electromagnetic emissions and immunity test requirements in relation to conducted and radiated disturbances

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c) 1st (excluding coal based) and 2nd family gases up to a working pressure of 7 bar (gauge) and a working temperature of up to 150 °C

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Wood preservatives. Determination of the protective effectiveness against Lyctus brunneus (Stephens) - Application by impregnation (laboratory method) Ingestion-build-202139 BS EN 50121-3-2 define limits1 Scope This Part of EN 20 specifies a method for the determination of the protective effectiveness or the toxic values of a wood preservative against infestation by Lyctus brunneus (Stephens) in wood which has been treated previously by full impregnation. This method is applicable to: water insoluble chemicals which are being studied as active insecticides, or, organic formulations, as supplied or as prepared in the laboratory by dilution of