BS EN 46-2:2009 pdf free.Wood preservatives—Determination of the preventive action against recently hatched larvae of Hylotrupes bajulus  (Linnaeus) Ovicidal effect (laboratory method).
BS EN 46-2 This European Standard specifies a method for the determination of the preventive action of a wood preservative against eggs of Hylatrupes 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; or
water-soluble materials, for example salts.
The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references the latest edition of the referenced document (including any amendments) applies.
EN 46-1. Wood preservatives — Determination of the preventive action against Hylotrupes bajulus (Linnaeus) — Part 1: Larvicidal effect (laboratory method)
EN 73, Wood preservatives — Accelerated ageing tests of treated wood prior to biological testing — Evaporative ageing procedure
EN 84, Wood preservatives — Accelerated ageing of treated wood prior to biological testing — Leaching procedure
EN ISO 3696:1995, Water for analytical laboratory use — Specification and test methods (ISO 3696:1987)
Prepare planed strips having a cross-section of (25土0,5) mm x (15士0,5) mm removing a minimum of 2 mm from any surfaces exposed during drying. The longitudinal faces shall be parallel to the direction of the grain. The annual rings shall have a contact angle of 45°土15° to the broad faces. Make transverse cuts, neatly to give sharp edges and a fine-sawn finish to the end-grain surfaces, to give test specimens (50土0,5) mm long.
The test specimens shall originate from a minimum of three trees or shall be taken at random from a stock originally of more than 500 test specimens.BS EN 46-2 pdf download.