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Homepage>BS Standards>71 CHEMICAL TECHNOLOGY>71.100 Products of the chemical industry>71.100.50 Wood-protecting chemicals>BS EN 20-2:2023 - TC Tracked Changes. Wood preservatives. Determination of the protective effectiveness against <i>Lyctus brunneus</i> (Stephens) Application by impregnation (Laboratory method)
immediate downloadReleased: 2024-01-04
BS EN 20-2:2023 - TC Tracked Changes. Wood preservatives. Determination of the protective effectiveness against <i>Lyctus brunneus</i> (Stephens) Application by impregnation (Laboratory method)

BS EN 20-2:2023 - TC

Tracked Changes. Wood preservatives. Determination of the protective effectiveness against <i>Lyctus brunneus</i> (Stephens) Application by impregnation (Laboratory method)

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Standard number:BS EN 20-2:2023 - TC
Pages:60
Released:2024-01-04
ISBN:978 0 539 29998 4
Status:Tracked Changes
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BS EN 20-2:2023 - TC


This standard BS EN 20-2:2023 - TC Tracked Changes. Wood preservatives. Determination of the protective effectiveness against Lyctus brunneus (Stephens) is classified in these ICS categories:
  • 71.100.50 Wood-protecting chemicals
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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