ČSN EN 20-1

Ochranné prostředky na dřevo - Stanovení preventivního účinku proti Lyctus brunneus (Stephens) - Část 1: Aplikace povrchovou impregnací (Laboratorní metoda) (Norma k přímému použití jako ČSN).

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Podrobné informace

Označení: ČSN EN 20-1

Datum vydání: 01.06.2024

Stran: 28

Země: Česká technická norma

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Anotace

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

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