Ochranné prostředky na dřevo - Stanovení preventivního účinku proti Lyctus brunneus (Stephens) - Část 2: Aplikace impregnací (Laboratorní metoda) (Norma k přímému použití jako ČSN).

The information about the standard:

Designation standards: ČSN EN 20-2
Classification mark: 490688
Catalog number: 519070
Publication date standards: 1.6.2024
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Czech technical standard
Kategória: Technické normy ČSN

Annotation of standard text ČSN EN 20-2 (490688):

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