scope:

This document specifies a method for the determination of the preventive action of a wood preservative against recently hatched larvae of Hylotrupes bajulus (Linnaeus) when the preservative is applied as a surface treatment to wood. 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, and - water-soluble materials, for example salts. The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures. Significant technical differences between this document and EN 46:1988 are as follows: a) introduction of new harmonised specifications for the test specimens used in the diverse biological tests; b) acknowledgement of the terms given in EN 1001-1; c) introduction of an informative Annex to take account of consideration for minimisation of environmental and health hazards caused by the use of this biological test.