Wood preservatives - Determination of the preventive action against recently hatched larvae of Hylotrupes bajulus (Linnaeus) . Part 2: Ovicidal effect (laboratory method)

This European Standard specifies a method for the determination of the preventive action of a wood preservative against eggs 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; or water-soluble materials, for example salts. The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures.

Holzschutzmittel - Bestimmung der vorbeugenden Wirkung gegenüber Hylotrupes bajulus (Linnaeus) -Teil 2: Ovidize Wirkung (Laboratoriumverfahren)

Diese Europäische Norm legt ein Verfahren zur Bestimmung der vorbeugenden Wirkung eines Holzschutzmittels
gegenüber Eiern von Hylotrupes bajulus (Linnaeus) fest, wobei das Holzschutzmittel zur Oberflächenbehandlung
des Holzes verwendet wird.
Das Verfahren gilt für:
- wasserunlösliche Chemikalien, die als wirksame Insektizide untersucht werden;
- organische Formulierungen im Anlieferungszustand oder in Form von im Laboratorium hergestellten
Verdünnungen von Konzentraten;
- organische, in Wasser dispergierbare Formulierungen im Anlieferungszustand oder in Form von im
Laboratorium hergestellten Verdünnungen von Konzentraten; oder
- wasserlösliche Stoffe, zum Beispiel Salze.
Das Verfahren gilt unabhängig davon, ob die Prüfkörper einer angemessenen Alterungsbeanspruchung
ausgesetzt wurden oder nicht.

Produits de préservation du bois - Détermination de l'action préventive contre Hylotrupes bajulus (linnaeus)Ä - Partie 2 : Effet novicide (méthode de laboratoire)

La présente partie de l'EN 46 prescrit une méthode de détermination de l’action préventive d'un produit de
préservation du bois contre les oeufs d’Hylotrupes bajulus (Linnaeus) lorsque le produit de préservation est
appliqué au bois par un traitement de surface.
La présente méthode est applicable :
1) aux produits chimiques non hydrosolubles étudiés en tant que matières actives insecticides ;
2) aux formules organiques telles qu'elles sont fournies ou préparées en laboratoire par dilution de
concentrés ;
3) aux formules organiques hydrodispersables telles qu'elles sont fournies ou préparées en laboratoire
par dilution de concentrés ; ou
4) aux produits solubles dans l’eau, par exemple aux sels.
Cette méthode s’applique à des éprouvettes d’essai ayant subi ou non des épreuves de vieillissement
appropriées.

Zaščitna sredstva za les - Ugotavljanje preventivnega delovanja proti hišnemu kozličku Hylotrupes bajulus (Linnaeus) - 2. del: Ugotavljanje učinkovitosti na jajčeca (laboratorijska metoda)

Ta evropski standard opredeljuje metodo za ugotavljanje preventivnega delovanja proti jajčecem hišnega kozlička Hylotrupes bajulus (Linnaeus), ko je zaščitno sredstvo naneseno na les kot površinska obdelava. Ta metoda se uporablja za: v vodi netopne kemikalije, ki se preučujejo kot aktivni insekticidi; organske pripravke, kot jih dobavijo ali pripravijo v laboratoriju z razredčenjem koncentratov; organske pripravke, ki v vodi dispergirajo, kot jih dobavijo ali pripravijo v laboratoriju z razredčenjem koncentratov; in v vodi topne materiale, na primer soli. Metoda se uporablja v primerih, če so bili preskusni vzorci podvrženi ustreznim postopkom staranja ali ne.

General Information

Status
Withdrawn
Public Enquiry End Date
29-Jun-2009
Publication Date
01-Feb-2010
Withdrawal Date
16-Aug-2016
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
17-Aug-2016
Due Date
09-Sep-2016
Completion Date
17-Aug-2016

Relations

Buy Standard

Standard
EN 46-2:2010
English language
24 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day
Draft
k FprEN 46-2:2009
English language
22 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Holzschutzmittel - Bestimmung der vorbeugenden Wirkung gegenüber Hylotrupes bajulus (Linnaeus) -Teil 2: Ovidize Wirkung (Laboratoriumverfahren)Produits de préservation du bois - Détermination de l'action préventive contre Hylotrupes bajulus (linnaeus)Ä - Partie 2 : Effet novicide (méthode de laboratoire)Wood preservatives - Determination of the preventive action against recently hatched larvae of Hylotrupes bajulus (Linnaeus) . Part 2: Ovicidal effect (laboratory method)71.100.50Wood-protecting chemicalsICS:Ta slovenski standard je istoveten z:EN 46-2:2009SIST EN 46-2:2010en,fr,de01-marec-2010SIST EN 46-2:2010SLOVENSKI
STANDARDSIST EN 46-2:20061DGRPHãþD



SIST EN 46-2:2010



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 46-2
November 2009 ICS 71.100.50 Supersedes EN 46-2:2006English Version
Wood preservatives - Determination of the preventive action against recently hatched larvae of Hylotrupes bajulus (Linnaeus) - Part 2: Ovicidal effect (laboratory method)
Produits de préservation du bois - Détermination de l'action préventive contre les larves récemment écloses d'Hylotrupes bajulus (Linnaeus) - Partie 2: Effet ovicide (Méthode de laboratoire)
Holzschutzmittel -Bestimmung der vorbeugenden Wirkung gegenüber frisch geschlüpften Larven von Hylotrupes bajulus (Linnaeus) - Teil 2: Ovidize Wirkung (Laboratoriumverfahren) This European Standard was approved by CEN on 10 October 2009.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 46-2:2009: ESIST EN 46-2:2010



EN 46-2:2009 (E) 2 Contents Page Foreword. 4Introduction . 51Scope . 62Normative references . 63Terms and definitions . 64Principle . 75Test materials . 75.1Biological material . 75.2Products and reagents . 75.3Apparatus . 76Sampling . 87Test specimens . 87.1Species of wood . 87.2Wood quality . 87.3Provision of test specimens . 97.4Dimensions of test specimens . 97.5Number of test specimens . 97.5.1Test specimens for egg-laying . 97.5.2Test specimens for checking the tunnelling ability and the mortality of the larvae . 98Procedure . 108.1Preparation of the test specimens . 108.1.1Conditioning of the test specimens prior to sealing . 108.1.2Sealing of block faces . 108.1.3Treatment of the test specimens . 108.1.4Drying and conditioning of the test specimens after treatment . 128.2Exposure of the test specimens to the insects (ovicidal action) . 128.3Validity of the test . 139Expression of results . 139.1Ovicidal test . 139.2Tunnelling control . 139.3Total mortality . 1310Test report . 14Annex A (informative)
Example of a test report . 16Annex B (informative)
Technique for culturing Hylotrupes bajulus (Linnaeus) . 19B.1General. 19B.2Obtaining parent beetles. 19B.3Mating . 19B.4Egg-Iaying . 19B.5Hatching of eggs . 20B.6Larval development . 20B.7Enemies and parasites . 21Annex C (informative)
Differentiation of heartwood and sapwood in Pinus species . 22C.1Principle . 22C.2Reagents . 22SIST EN 46-2:2010



EN 46-2:2009 (E) 3 C.3Apparatus . 22C.4Procedure . 22Annex D (informative)
Environmental, health and safety precautions within chemical/biological laboratory . 23Bibliography . 24SIST EN 46-2:2010



EN 46-2:2009 (E) 4 Foreword This document (EN 46-2:2009) has been prepared by Technical Committee CEN/TC 38 “Durability of wood and wood-based products”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2010, and conflicting national standards shall be withdrawn at the latest by May 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 46-2:2006. The standard EN 46 is composed of two parts:  EN 46-1, Wood preservatives
Determination of the preventive action against recently hatched larvae of Hylotrupes bajulus (Linnaeus)
Part 1: Application by surface treatment (laboratory method)  EN 46-2, Wood preservatives
Determination of the preventive action against recently hatched larvae of Hylotrupes bajulus (Linnaeus)
Part 2: Ovicidal effect (laboratory method) EN 46 consists of two parts to enable preventive action of wood preservatives, against recently hatched larvae of Hylotrupes bajulus, which are intended to be applied by surface treatment; Part 1 is required to determine the larvicidal effect of preservatives and Part 2 is required to determine the ovicidal action of the preservatives after egg-laying of young females. Significant technical differences between this document and EN 46-2:2006 are as follows: a) For treatment by dipping sealing of all faces except the one which is exposed to the insects added; b) Requirements for the selection of test specimens specified in more detail in 7.5.1.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
SIST EN 46-2:2010



EN 46-2:2009 (E) 5 Introduction This test method describes a laboratory method of test which gives a basis for the assessment of the preventive action of a wood preservative, when applied as a surface treatment for timber, against eggs of Hylotrupes bajulus. In combination with EN 46-1 it provides a means of checking whether larvae may hatch from eggs laid on the treated wood surface and whether they are capable of boring through the treated surface and of surviving in the untreated part of the wood. This amended standard provides for the sealing of all but one lateral face when specimens are to be treated by dipping. When products which are very active at very low concentration are used, it is very important to take suitable precautions to isolate and separate, as far as possible, operations involving chemical products, other products, treated wood, laboratory apparatus and clothing. Suitable precautions should include the use of separate rooms, areas within rooms, extraction facilities, conditioning chambers and special training for personnel (see also Annex D for environmental, health and safety precautions). SIST EN 46-2:2010



EN 46-2:2009 (E) 6 1 Scope This European Standard specifies a method for the determination of the preventive action of a wood preservative against eggs 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; 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) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 representative sample sample having its physical and/or chemical characteristics identical to the volumetric average characteristics of the total volume being sampled [EN 1001-2:2005, 4.71] 3.2 supplier sponsor of the test (person or company providing the sample of wood preservative to be tested) NOTE
Adapted from EN 1001-2:2005, 4.83. SIST EN 46-2:2010



EN 46-2:2009 (E) 7 4 Principle In this laboratory method treated wood panels are offered to freshly mated Hylotrupes bajulus females. The hatching ability of the larvae on the treated timber is examined. When the ovicidal action is insufficient, the mortality of the hatched larvae on and/or in wood treated with the same formulation is also established according to EN 46-1. 5 Test materials 5.1 Biological material
5.1.1 Hylotrupes bajulus (Linnaeus) females. 5.1.2 Source of females The insects shall preferably be obtained from cultures reared as e.g. described in Annex B. Use only sound and lively insects.
5.2 Products and reagents
5.2.1 Paraffin wax, for fixing the glass plate in all cases and for sealing the end faces of test specimens to be treated with solutions in all cases in which water is the continuous phase. NOTE Paraffin wax with a setting point of 52 °C to 54 °C has been found to be suitable. 5.2.2 Gelatine, for sealing the end faces of test specimens to be treated with solutions in which an organic solvent is the continuous phase. 5.2.3 Water, complying with grade 3 of EN ISO 3696:1995. 5.2.4 Solvent or diluent, a volatile liquid that will dissolve or dilute the preservative but does not leave a residue in the wood at the end of the post-treatment conditioning period that has a toxic effect on the insects. CAUTION — Do not use benzene or other solvents which pose a health risk. 5.3 Apparatus 5.3.1 Culturing chamber, with air circulation, and controlled at (28 ± 2) °C and at relative humidity (70 ± 5) %. 5.3.2 Conditioning chamber, well ventilated and controlled at (20 ± 2) °C and at relative humidity (65 ± 5) %. NOTE The conditioning of test specimens may be carried out in the laboratory work area (see 5.3.3) provided that this has the conditions specified for the conditioning chamber (see 5.3.2). 5.3.3 Laboratory work area, well ventilated, where treatment of the test specimens is carried out. CAUTION — It is essential to follow safety procedures for handling flammable and toxic materials. Avoid excessive exposure of operators to solvents or their vapours. 5.3.4 Testing chamber, ventilated and air-conditioned, controlled at (22 ± 2) °C and at relative humidity between (70 ± 5) %. SIST EN 46-2:2010



EN 46-2:2009 (E) 8 5.3.5 Petri dishes of glass or polyvinylchloride (PVC), diameter ca. 9 cm for mating the insects and for egg-laying. 5.3.6 Weights, to provide ballast for the test specimens.
The weights shall not react with any materials with which they come into contact during the test. 5.3.7 Safety equipment, protective clothing, appropriate for the test product and the test solvent, to ensure the safety of the operator. 5.3.8 Glass plates, 48 mm long and 25 mm wide, intended to provide a lateral slit on the test specimens. 5.3.9 Ordinary laboratory equipment, including a balance capable of weighing to an accuracy of 0,01 g and equipment for applying a liquid product by brushing or by pipette. 5.3.10 Protective gloves 6 Sampling The sample of preservative shall be representative of the product to be tested. Samples shall be stored and handled in accordance with any written recommendations from the supplier. NOTE For the sampling of preservatives from bulk supplies, the procedure given in EN 212 should be used. 7 Test specimens 7.1 Species of wood The reference species is Scots pine (Pinus sylvestris Linnaeus)1). NOTE Additional tests may be carried out using other species but, if so, this shall be stated in the test report. 7.2 Wood quality
The wood shall be free from visible cracks, stain, decay, insect damage and other defects. The wood shall not have been water-stored, floated, chemically treated or steamed. The wood shall originate from trees preferably felled in winter. The wood shall not have been stored for more than five years. NOTE 1 Wood that has been kiln dried at temperatures below 60 °C may be used. The wood shall be exclusively sapwood containing little resin and having between 2,5 annual rings per 10 mm and eight annual rings per 10 mm. The proportion of latewood in the annual rings shall not exceed 30 % of the whole. NOTE 2 It is recommended to use test specimens of similar growth rate within a single test.
1) In southern European countries the pine species most frequently infested by Hylotrupes bajulus may be used as an alternative, provided that the suitability of the species for use in the tests specified in this standard has been demonstrated in all aspects (development of larvae, resistance of impregnation, etc.). SIST EN 46-2:2010



EN 46-2:2009 (E) 9 7.3 Provision of test specimens2) Prepare planed strips having a cross-section of (25 ± 0,5) mm × (15 ± 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° ± 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 ± 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. 7.4 Dimensions of test specimens The dimensions of each test specimen after reaching equilibrium in the conditioning chamber (5.3.2) shall be (50 ± 0,5) mm × (25 ± 0,5) mm × (15 ± 0,5) mm. Mark each test specimen so that it can be identified throughout the test. 7.5 Number of test specimens 7.5.1 Test specimens for egg-laying a) Six treated test specimens (no more than two originating from the same tree unless taken at random from a stock of more than 500) for each preservative, each concentration and each duration of treatment;
b) three untreated control test specimens (each originating from a different tree unless taken at random from a stock of more than 500) for a complete test of any given preservative; c) three control test specimens treated with the solvent or diluent (5.2.3 or 5.2.4) (each originating from a different tree unless taken at random from a stock of more than 500) if a solvent or diluent (including water) is used. When dipping is to be used (8.1.3.3) it is advisable to treat more than the specified number of test specimens so that, after weighing, any test specimens with abnormally high or low retentions can be rejected from the batch. NOTE
To gain further information on a formulation, the manufacturer may find it useful to test a version of the preservative where the active ingredient(s) has been removed. 7.5.2 Test specimens for checking the tunnelling ability and the mortality of the larvae In addition to the test specimens for egg-laying at least six test specimens shall be prepared for each preservative concentration and retention for checking the tunnelling ability and the mortality of the newly hatched larvae.
2) For special tests, test specimens may be obtained according to a given series. As a result, it may be preferable to take test specimens from pretreated strips. Where pretreated strips are used details should be included in the test report. SIST EN 46-2:2010



EN 46-2:2009 (E) 10 8 Procedure 8.1 Preparation of the test specimens 8.1.1 Conditioning of the test specimens prior to sealing Allow the test specimens to condition in the conditioning chamber (5.3.2) for a minimum of two weeks. 8.1.2 Sealing of block faces 8.1.2.1 General When treatment is to be by brushing or by pipette then only the transverse faces of test specimens shall be sealed. When treatment is to be by dipping then all faces, except one 25 mm x 50 mm face, shall be sealed. The material used for sealing shall be resistant to the penetration of wood preservatives under test. The sealings specified in 8.1.2.2 and 8.1.2.3 have been proven as suitable.
8.1.2.2 For tests with preservative solutions in which water is the continuous phase, apply three coats of the paraffin wax (5.2.1) at about 90 °C so that the first coat adheres closely to the wood and the successive coatings bond to one another. Condition the sealed test specimens in the conditioning chamber (5.3.2) for at least one day. 8.1.2.3 For tests with preservative solutions in which the continuous phase is an organic solvent that dissolves paraffin wax, use the gelatine (5.2.2): apply the first coat as an aqueous solution of 200 g/l at 40 °C, then after a minimum of 8 h of drying, apply two further coats of an aqueous solution of 300 g/l at 50 °C. Condition the sealed
test specimens in the conditioning chamber (5.3.2) for at least one day. 8.1.3 Treatment of the test specimens 8.1.3.1 Preparation of the treatment solutions 8.1.3.1.1 Solid preservatives  Water-soluble preservatives: Dissolve the preservative in the water (5.2.3) to the concentration recommended by the manufacturer.  Non-water-soluble preservatives: Dissolve the preservative in an appropriate solvent (5.2.4) to the concentration recommended by the manufacturer. All treatment solutions shall be freshly prepared. 8.1.3.1.2 Liquid preservatives If appropriate, use the preservative without further preparation other than any necessary stirring. If it is a concentrate, dilute the preservative with the diluent specified by the manufacturer to the required working concentration. A formulation of the preservative to be tested without active ingredients shall also be included in the test. All treatment solutions shall be freshly prepared. SIST EN 46-2:2010



EN 46-2:2009 (E) 11 8.1.3.2 Treatment by brushing or by pipette
In the laboratory work area (5.3.3) apply the preservative either by brushing or by pipette to the 50 mm x 25 mm lateral face that would have been furthest from the centre of the tree. Depending on the type of treatment, the volume (application by pipette) or mass (application by brushing) of the treatment solution shall be determined to obtain the surface application specified by the manufacturer. Place the specimens such that the 50 mm x 25 mm lateral face that is to be treated is uppermost and apply the appropriate fluid uniformly to that face. When the preservative is applied by brush, place the test specimens on a balance while being brushed to determine the amount of preservative applied to the nearest 0,01 g. When the preservative is applied by pipette, move the pipette across the fibre direction and the amount of preservative applied shall be determined to the nearest 0,01 ml. NOTE 1 Several applications can be necessary to apply the required amount. In this case the coats should be applied sufficiently quickly to avoid any solidification of certain substances which can impede the penetration of further coats. NOTE 2 Care must be taken to avoid fluid running off the lateral face being treated. 8.1.3.3 Treatment by dipping When the treatment of specimens is by dipping all faces, except one 25 mm x 50 mm face, shall be sealed (see 8.1.2). Weigh to the nearest 0,01 g any sealed test specimen, to obtain its initial mass. Immerse one test specimen after the other in the treatment solution, moving it during dipping. The dipping time to be used shall be one of the following, agreed beforehand according to the purpose of the test:  Either one 10 s period and/or two periods of 10 s at an interval of 24 h. If the rate of solidification of some constituents of a preservative formulation would have the effect of retarding its penetration during the second dipping, this interval has to be reduced. The interval employed shall be mentioned in the test report.  Or a period sufficient for a determined quantity to be retained by the test specimen3). Using forceps, remove each test specimen from the preservative fluid and sponge off fluid from all the sealed faces of the specimen. Keeping the face that has not been sealed upper most, immediately weigh to the nearest 0,01 g. In the case of water-soluble chemicals, for example salts, and water-insoluble chemicals which are being studied as active ingredients, calculate the mass of chemical retained for each test specimen from the mass of solution absorbed and its concentration. In the case of organic formulations or organic water-dispersible formulations, the retention is expressed for each test specimen in terms of the corresponding mass of the formulation ready for use, but if a concentrate is supplied the retention is expressed in terms of the dilution applied.
3) The dipping time depends upon the type of preservative and may extend to several hours for water-soluble preservatives. The progress of absorption is monitored by successive weightings of the treated test specimens. For this long period dipping the treated specimens are immersed together and kept submerged by the weights (5.3.6). SIST EN 46-2:2010



EN 46-2:2009 (E) 12 Calculate the mass of preservative retained in grams per square meter of timber surface. 8.1.4 Drying and conditioning of the test specimens after treatment If the end-sealing has been damaged before or after treatment, reject the test specimens concerned from the tests. After treatment, condition the test specimens for four weeks in the environment specified for the conditioning chamber (5.3.2). Arrange the test specimens on their lateral narrow faces, resting on glass rods, not touching one another. Invert the test specimens twice a week. NOTE The drying and conditioning of the test specimens depend on the nature of the product under test and on the solvent or diluent used. For slow drying products it may be necessary to extend the conditioning process. If, in the case of slow drying products, the conditioning period is extended, the extended conditioning period shall be stated in the test report. If the test specimens are to be subject to an ageing procedure (according to EN 73 or EN 84), this shall be carried out after this drying procedure. 8.2 Exposure of the test specimens to the insects (ovicidal action) Mate young Hylotrupes females in Petri dishes (5.3.5). After mating transfer the females singly to other Petri dishes (5.3.5) with centrally placed test specimens (7.5.1). Place the treated face of the test specimen on the bottom of the Petri dish leaving a gap for egg-laying. The test specimens are now ready for egg-laying by the house longhorn beetle.
Egg-laying extends over seven days under the conditions of the testing chamber (5.3.4). After the first egg-laying remove the females. In case less than ten eggs have been deposited on a test specimen, repeat the egg-laying procedure with a freshly mated female. In case no e
...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Produits de préservation du bois - Détermination de l'action préventive contre Hylotrupes bajulus (Linnaeus) - Partie 2 : Effet ovicide (Méthode de laboratoire)Wood preservatives - Determination of the preventive action agaist Hylotrupes bajulus (Linnaeus) - Part 2: Ovicidal effect (laboratory method)71.100.50Wood-protecting chemicalsICS:Ta slovenski standard je istoveten z:FprEN 46-2kSIST FprEN 46-2:2009en,fr,de01-junij-2009kSIST FprEN 46-2:2009SLOVENSKI
STANDARD



kSIST FprEN 46-2:2009



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMFINAL DRAFTFprEN 46-2April 2009ICS 71.100.50Will supersede EN 46-2:2006
English VersionWood preservatives - Determination of the preventive actionagaist Hylotrupes bajulus (Linnaeus) - Part 2: Ovicidal effect(laboratory method)Produits de préservation du bois - Détermination de l'actionpréventive contre Hylotrupes bajulus (Linnaeus) - Partie 2 :Effet ovicide (Méthode de laboratoire)Holzschutzmittel - Bestimmung der vorbeugenden Wirkunggegenüber Hylotrupes bajulus (Linnaeus) - Teil 2: OvizideWirkung (Laboratoriumsverfahren); EN 46-2/prA1:2008This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the TechnicalCommittee CEN/TC 38.If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations whichstipulate the conditions for giving this European Standard the status of a national standard without any alteration.This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other languagemade by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has thesame status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice andshall not be referred to as a European Standard.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. FprEN 46-2:2009: EkSIST FprEN 46-2:2009



FprEN 46-2:2009 (E) 2 Contents Page Foreword. 3Introduction . 41Scope . 52Normative references . 53Terms and definitions . 54Principle . 65Test materials . 65.1Biological material . 65.2Products and reagents . 65.3Apparatus . 66Sampling . 77Test specimens . 77.1Species of wood . 77.2Wood quality . 77.3Provision of test specimens . 87.4Dimensions of test specimens . 87.5Number of test specimens . 87.5.1Test specimens for egg-laying . 87.5.2Test specimens for checking the tunnelling ability and the mortality of the larvae . 88Procedure . 98.1Preparation of the test specimens . 98.1.1Conditioning of the test specimens prior to sealing . 98.1.2Sealing of block faces . 98.1.3Treatment of the test specimens . 98.1.4Drying and conditioning of the test specimens after treatment . 118.2Exposure of the test specimens to the insects (ovicidal action) . 118.3Validity of the test . 129Expression of results . 129.1Ovicidal test . 129.2Tunnelling control . 129.3Total mortality . 1210Test report . 13Annex A (informative)
Example of a test report . 15Annex B (informative)
Technique for culturing Hylotrupes bajulus (Linnaeus) . 18B.1General. 18B.2Obtaining parent beetles. 18B.3Mating . 18B.4Egg-Iaying . 18B.5Hatching of eggs . 19B.6Larval development . 19B.7Enemies and parasites . 20Annex C (informative)
Environmental, health and safety precautions within chemical/biological laboratory . 21Bibliography . 22kSIST FprEN 46-2:2009



FprEN 46-2:2009 (E) 3 Foreword This document (FprEN 46-2:2009) has been prepared by Technical Committee CEN/TC 38 “Durability of wood and wood-based products”, the secretariat of which is held by AFNOR. This document is currently submitted to the Unique Acceptance Procedure. This document will supersede EN 46-2:2006. The standard EN 46 is composed of two parts: 1) EN 46-1, Wood preservatives – Determination of the preventive action against recently hatched larvae of Hylotrupes bajalus (Linnaeus) – Part 1: Application by surface treatment (Laboratory method) 2) EN 46-2, Wood preservatives – Determination of the preventive action against Hylotrupes bajulus (Linnaeus) – Part 2: Ovicidal effect (laboratory method) This document consist of two parts to enable preventive action of wood preservatives ,against recently hatched larvae of Hylotrupes bajulus, which are intended to be applied by surface treatment; Part 1 is required to determine the larvicidial effect of preservatives and Part 2 is required to determine the ovicidal action of the preservatives after egg-laying of young females. Significant technical differences between this document and EN 46-2:2006 are as follows: a) For treatment by dipping sealing of all faces except the one which is exposed to the insects added; b) Requirements for the selection of test specimens specified in more detail in 7.5.1.
kSIST FprEN 46-2:2009



FprEN 46-2:2009 (E) 4 Introduction This test method describes a laboratory method of test which gives a basis for the assessment of the preventive action of a wood preservative, when applied as a surface treatment for timber, against eggs of Hylotrupes bajulus. In combination with EN 46-1 it provides a means of checking whether larvae may hatch from eggs laid on the treated wood surface and whether they are capable of boring through the treated surface and of surviving in the untreated part of the wood. This amended standard provides for the sealing of all but one lateral face when specimens are to betreated by dipping. When products which are very active at very low concentration are used, it is very important to take suitable precautions to isolate and separate, as far as possible, operations involving chemical products, other products, treated wood, laboratory apparatus and clothing. Suitable precautions should include the use of separate rooms, areas within rooms, extraction facilities, conditioning chambers and special training for personnel (see also Annex C for environmental, health and safety precautions). kSIST FprEN 46-2:2009



FprEN 46-2:2009 (E) 5 1 Scope This part of EN 46 specifies a method for the determination of the preventive action of a wood preservative against eggs of Hylotrupes bajulus (Linnaeus) when the preservative is applied as a surface treatment to wood.
This method is applicable to:
1) water-insoluble chemicals which are being studied as active insecticides, 2) organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates, 3) organic water-dispersible formulations as supplied or as prepared in the laboratory by dilution of concentrates, or 4) 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: Larvicidial effect (Laboratory method) EN ISO 3696:1995, Water for analytical laboratory use – Specification and test methods (ISO 3696:1987) 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 representative sample sample having its physical and/or chemical characteristics identical to the volumetric average characteristics of the total volume being sampled [EN 1001-2:2005, 4.71] 3.2 supplier sponsor of the test (person or company providing the sample of wood preservative to be tested) NOTE
Adapted from EN 1001-2:2005, 4.83. kSIST FprEN 46-2:2009



FprEN 46-2:2009 (E) 6 4 Principle In this laboratory method treated wood panels are offered to freshly mated Hylotrupes bajulus females. The hatching ability of the larvae on the treated timber is examined. When the ovicidal action is insufficient, the mortality of the hatched larvae on and/or in wood treated with the same formulation is also established according to EN 46-1. 5 Test materials 5.1 Biological material
5.1.1 Hylotrupes bajulus (Linnaeus) females. 5.1.2 Source of females. The insects shall preferably be obtained from cultures reared as e.g. described in Annex B. Use only sound and lively insects.
5.2 Products and reagents
5.2.1 Paraffin wax, for fixing the glass plate in all cases and for sealing the end faces of test specimens to be treated with solutions in all cases in which water is the continuous phase. NOTE Paraffin wax with a setting point of 52 °C to 54 °C has been found to be suitable. 5.2.2 Gelatine, for sealing the end faces of test specimens to be treated with solutions in which an organic solvent is the continuous phase. 5.2.3 Water, complying with grade 3 of EN ISO 3696:1995. 5.2.4 Solvent or diluent, a volatile liquid that will dissolve or dilute the preservative but does not leave a residue in the wood at the end of the post-treatment conditioning period that has a toxic effect on the insects. CAUTION — Do not use benzene or other solvents which pose a health risk. 5.3 Apparatus 5.3.1 Culturing chamber, with air circulation, and controlled at (28 ± 2) °C and at relative humidity (70 ± 5) %. 5.3.2 Conditioning chamber, well ventilated and controlled at (20 ± 2) °C and at relative humidity (65 ± 5) %. NOTE The conditioning of test specimens may be carried out in the laboratory work area (see 5.3.3) provided that this has the conditions specified for the conditioning chamber (see 5.3.2). 5.3.3 Laboratory work area, well ventilated, where treatment of the test specimens is carried out. CAUTION — It is essential to follow safety procedures for handling flammable and toxic materials. Avoid excessive exposure of operators to solvents or their vapours. 5.3.4 Testing chamber, ventilated and air-conditioned, controlled at (22 ± 2) °C and at relative humidity between (70 ± 5) %. kSIST FprEN 46-2:2009



FprEN 46-2:2009 (E) 7 5.3.5 Petri dishes of glass or polyvinylchloride (PVC), diameter ca. 9 cm for mating the insects and for egg-laying. 5.3.6 Weights, to provide ballast for the test specimens.
The weights shall not react with any materials with which they come into contact during the test. 5.3.7 Safety equipment, protective clothing and (protective) gloves, appropriate for the test product and the test solvent, to ensure the safety of the operator. 5.3.8 Glass plates, 48 mm long and 25 mm wide, intended to provide a lateral slit on the test specimens. 5.3.9 Ordinary laboratory equipment, including a balance capable of weighing to an accuracy of 0,01 g and equipment for applying a liquid product by brushing or by pipette. 6 Sampling The sample of preservative shall be representative of the product to be tested. Samples shall be stored and handled in accordance with any written recommendations from the supplier. NOTE For the sampling of preservatives from bulk supplies, the procedure given in EN 212 should be used. 7 Test specimens 7.1 Species of wood The reference species is Scots pine (Pinus sylvestris Linnaeus)1). NOTE Additional tests may be carried out using other species but, if so, this shall be stated in the test report. 7.2 Wood quality
The wood shall be free from visible cracks, stain, decay, insect damage and other defects. The wood shall not have been water-stored, floated, chemically treated or steamed. The wood shall originate from trees preferably felled in winter. The wood shall not have been stored for more than five years. NOTE 1 Wood that has been kiln dried at temperatures below 60 °C may be used. The wood shall be exclusively sapwood containing little resin and having between 2,5 annual rings per 10 mm and eight annual rings per 10 mm. The proportion of latewood in the annual rings shall not exceed 30 % of the whole. NOTE 2 It is recommended to use test specimens of similar growth rate within a single test.
1) In southern European countries the pine species most frequently infested by Hylotrupes bajulus may be used as an alternative, provided that the suitability of the species for use in the tests specified in this standard has been demonstrated in all aspects (development of larvae, resistance of impregnation, etc.). kSIST FprEN 46-2:2009



FprEN 46-2:2009 (E) 8 7.3 Provision of test specimens2) Prepare planed strips having a cross-section of (25 ± 0,5) mm × (15 ± 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 ± 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 ± 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. 7.4 Dimensions of test specimens The dimensions of each test specimen after reaching equilibrium in the conditioning chamber (5.3.2) shall be (50 ± 0,5) mm × (25 ± 0,5) mm × (15 ± 0,5) mm. Mark each test specimen so that it can be identified throughout the test. 7.5 Number of test specimens 7.5.1 Test specimens for egg-laying a) Six treated test specimens (no more than two originating from the same tree unless taken at random from a stock of more than 500) for each preservative, each concentration and each duration of treatment;
b) three untreated control test specimens (each originating from a different tree unless taken at random from a stock of more than 500) for a complete test of any given preservative; c) three control test specimens treated with the solvent or diluent (5.2.3 or 5.2.4) (each originating from a different tree unless taken at random from a stock of more than 500) if a solvent or diluent (including water) is used. When dipping is to be used (8.1.3.2) it is advisable to treat more than the specified number of test specimens so that, after weighing, any test specimens with abnormally high or low retentions can be rejected from the batch. NOTE
To gain further information on a formulation, the manufacturer may find it useful to test a version of the preservative where the active ingredient(s) has been removed. 7.5.2 Test specimens for checking the tunnelling ability and the mortality of the larvae In addition to the test specimens for egg-laying at least six test specimens shall be prepared for each preservative concentration and retention for checking the tunnelling ability and the mortality of the newly hatched larvae.
2) For special tests, test specimens may be obtained according to a given series. As a result, it may be preferable to take test specimens from pretreated strips. kSIST FprEN 46-2:2009



FprEN 46-2:2009 (E) 9 8 Procedure 8.1 Preparation of the test specimens 8.1.1 Conditioning of the test specimens prior to sealing Allow the test specimens to condition in the conditioning chamber (5.3.2) for a minimum of two weeks. 8.1.2 Sealing of block faces 8.1.2.1 General When treatment is to be by brushing or by pipette then only the transverse faces of test specimens shall be sealed. When treatment is to be by dipping then all faces, except one 25 x 50 mm face, shall be sealed. The material used for sealing shall be resistant to the penetration of wood preservatives under test. The sealings specified in 8.1.2.2 and 8.1.2.3 have been proven as suitable.
8.1.2.2 For tests with preservative solutions in which water is the continuous phase, apply three coats of the paraffin wax (5.2.1) at about 90 °C so that the first coat adheres closely to the wood and the successive coatings bond to one another. Condition the sealed test specimens in the conditioning chamber (5.3.2) for at least one day. 8.1.2.3 For tests with preservative solutions in which the continuous phase is an organic solvent that dissolves paraffin wax, use the gelatine (5.2.2): apply the first coat as an aqueous solution of 200 g/l
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.