ČSN EN 20-2

Wood preservatives - Determination of the protective effectiveness against Lyctus brunneus (Stephens) - Part 2: Application by impregnation (Laboratory method)

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Podrobné informácie

Označenie: ČSN EN 20-2

Dátum vydania: 01.06.2024

Stránok: 28

Krajina: Česká technická norma

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Anotácia

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) in wood which has been treated previously by full impregantion.
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.
This method is applicable to water-based preservatives.
NOTE - This method can be used in conjuction with ageing procedures, which do not remove the added nutrient

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