FprEN 47

Wood preservatives - Determination of the toxic values against larvae of Hylotrupes bajulus (Linnaeus) - (Laboratory method)

Publication date:   Jul 30, 2026

General information

50.20   Proof sent to secretariat or FDIS ballot initiated: 8 weeks   Jul 30, 2026

CEN

CEN/TC 38 Durability of wood and wood-based products

European Norm

71.100.50   Wood-protecting chemicals

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Scope

This document specifies a method for the determination of the toxic values of a wood preservative against the larvae of Hylotrupes bajulus (Linnaeus), introduced into wood treated previously by full impregnation.
This method is applicable to:
- water-insoluble chemicals which are being studied as active insecticides,
- organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates,
- organic water-dispersible formulations as supplied or as prepared in the laboratory by dilution of concentrates, or
- water-soluble materials, for example salts.
The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures.

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EN 47:2016

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FprEN 47
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Jul 30, 2026