NEN-EN 21
Wood preservatives - Determination of the toxic values against Anobium punctatum (De Geer) by larval transfer (Laboratory method)
| Organization: | NEN |
| Publication Date: | 1 March 1990 |
| Status: | active |
| Page Count: | 16 |
| ICS Code (Wood-protecting chemicals): | 71.100.50 |
scope:
This European Standard specifies a method for the determination of the toxic values of a wood preservative against larvae of Anobium punctatum (De Geer), introduced into wood which has been treated previously by full impregnation. This method is applicable to: -Water-insoluble chemicals which are being studied as active insecticides, or -organic water-insoluble 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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