FprEN 118
(Main)Wood preservatives - Determination of preventive action against Reticulitermes species (European termites) (Laboratory method)
Wood preservatives - Determination of preventive action against Reticulitermes species (European termites) (Laboratory method)
This document specifies a method for the determination of the preventive action of a wood preservative against the Reticulitermes species of European termites when the preservative is applied as a surface treatment to wood.
NOTE 1 This method can be applied not only to different species of Reticulitermes, but also to other species of the family Rhinotermitidae, where necessary adapting the temperature and humidity conditions and the assessment of attack to the specific behaviour of the species concerned.
This method is applicable to:
- water-insoluble chemicals which are being studied as active ingredients;
- 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.
NOTE 2 This method can be used in conjunction with an ageing procedure, for example EN 73 or EN 84.
Holzschutzmittel - Bestimmung der vorbeugenden Wirkung gegenüber Reticulitermes-Arten (Europäische Termiten) (Laboratoriumsverfahren)
Dieses Dokument legt ein Verfahren zur Bestimmung der vorbeugenden Wirkung eines Holzschutzmittels gegenüber europäischen Reticulitermes-Arten fest, wobei das Holzschutzmittel zur Oberflächenbehandlung von Holz angewendet wird.
ANMERKUNG 1 Das Verfahren kann nicht nur auf verschiedene Arten von Reticulitermes, sondern auch auf andere Arten der Familie Rhinotermitidae angewendet werden, indem gegebenenfalls die Temperatur- und Feuchtebedingungen und die Bewertung des Angriffs entsprechend dem spezifischen Verhalten der betrachteten Art angepasst werden.
Dieses Verfahren ist anwendbar für:
- wasserunlösliche Chemikalien, die als Wirkstoffe 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 der Form, wie sie im Labor durch Verdünnung von Konzentraten hergestellt werden; und
- wasserlösliche Stoffe, zum Beispiel Salze.
ANMERKUNG 2 Dieses Verfahren kann in Verbindung mit einer Alterungsbeanspruchung, z. B. EN 73 oder EN 84, angewendet werden.
Produits de préservation des bois - Détermination de l'action préventive contre les espèces de Reticulitermes (termites européens) (Méthode de laboratoire)
Le présent document décrit une méthode pour la détermination de l'action préventive d'un produit de préservation du bois contre les espèces de termites européens du genre Reticulitermes quand le produit de préservation s'applique au bois par un traitement de surface.
Cette méthode s'applique :
- aux produits chimiques non hydrosolubles étudiés en tant que matières actives ;
- aux formulations organiques telles qu'elles sont fournies ou préparées au laboratoire par dilution de concentrés ;
- aux formulations organiques hydrodispersables telles qu'elles sont fournies ou préparées au laboratoire par dilution de concentrés ; et
- aux produits hydrosolubles, par exemple des sels.
NOTE Cette méthode peut être utilisée conjointement avec une épreuve de vieillissement, par exemple selon l'EN 73 ou l'EN 84.
Zaščitna sredstva za les - Ugotavljanje preventivnega delovanja proti Reticulitermes santonensis (evropskim termitom) (laboratorijska metoda)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 118:2023
01-december-2023
Zaščitna sredstva za les - Ugotavljanje preventivnega delovanja proti
Reticulitermes santonensis (evropskim termitom) (laboratorijska metoda)
Wood preservatives - Determination of preventive action against Reticulitermes species
(European termites) (Laboratory method)
Holzschutzmittel - Bestimmung der vorbeugenden Wirkung gegenüber Reticulitermes-
Arten (Europäische Termiten) (Laboratoriumsverfahren)
Produits de préservation des bois - Détermination de l'action préventive contre les
espèces de Reticulitermes (termites européens) (Méthode de laboratoire)
Ta slovenski standard je istoveten z: prEN 118
ICS:
71.100.50 Kemikalije za zaščito lesa Wood-protecting chemicals
oSIST prEN 118:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 118:2023
oSIST prEN 118:2023
DRAFT
EUROPEAN STANDARD
prEN 118
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2023
ICS 71.100.50 Will supersede EN 118:2013
English Version
Wood preservatives - Determination of preventive action
against Reticulitermes species (European termites)
(Laboratory method)
Produits de préservation des bois - Détermination de Holzschutzmittel - Bestimmung der vorbeugenden
l'action préventive contre les espèces de Wirkung gegenüber Reticulitermes-Arten (Europäische
Reticulitermes (termites européens) (Méthode de Termiten) (Laboratoriumsverfahren)
laboratoire)
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 38.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 118:2023 E
worldwide for CEN national Members.
oSIST prEN 118:2023
prEN 118:2023 (E)
Contents Page
European Foreword . 3
Introduction . 4
1 Scope . 5
2 Normative reference . 5
3 Terms and definitions . 5
4 Principle . 5
5 Test materials . 6
6 Sampling . 7
7 Test specimens . 7
8 Procedure. 8
9 Expression of results . 13
10 Test report . 13
Annex A (informative) Example of a test report . 15
Annex B (informative) Example of a method of culturing termites . 17
Annex C (informative) Environmental, health and safety precautions within chemical/biological
laboratory . 18
Bibliography . 19
oSIST prEN 118:2023
prEN 118:2023 (E)
European Foreword
This document (prEN 118:2023) has been prepared by Technical Committee CEN/TC 38 “Durability of wood
and derived materials”, the secretariat of which is held by SIS.
This document will supersede EN 118:2013.
Significant technical differences between this document and EN 118:2013 are as follows:
— the required purity of fine white quartz sand was lowered (5.2.1.1);
— the values for the examination of termite attack in rating 2i) and 3i) were slightly changed to close rating
gabs.
NOTE The species name “Reticulitermes santonensis” is officially withdrawn and replaced by Reticulitermes
flavipes. This document will follow the new regulation.
oSIST prEN 118:2023
prEN 118:2023 (E)
Introduction
This document describes a laboratory method of testing which gives a basis for assessment of the effectiveness
of a wood preservative, when applied as a surface treatment, against the Reticulitermes species of European
termites.
This laboratory method provides one criterion by which the value of a product can be assessed. It is further
recommended that results from this test should be supplemented by those from other appropriate tests, and
above all by comparison with practical experience.
When products which are very active at low concentrations 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).
oSIST prEN 118:2023
prEN 118:2023 (E)
1 Scope
This document specifies a method for the determination of the preventive action of a wood preservative
against the Reticulitermes species of European termites 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 ingredients;
— 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.
NOTE This method can be used in conjunction with an ageing procedure, for example EN 73 or EN 84.
2 Normative reference
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN ISO 3696, Water for analytical laboratory use — Specification and test methods (ISO 3696)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
representative sample
sample having its physical or chemical characteristics identical to the volumetric average characteristics of
the total volume being sampled
3.2
supplier
sponsor of the test (person or company providing the sample of wood preservative to be tested)
4 Principle
Surface treatment of test specimens of a susceptible wood species with the preservative or, if a concentrate is
being used, with known dilutions of the preservative.
Exposure of these test specimens to specified colonies of European Reticulitermes species and assessment
of the attack suffered after exposure under fixed conditions and over a fixed period.
This method can be applied not only to different species of Reticulitermes, but also to other species of the family Rhinotermitidae,
where necessary adapting the temperature and humidity conditions and the assessment of attack to the specific behaviour of the
species concerned.
In providing biological validation of individual species, it is essential that the locality of origin of each test termite species is given.
The description of the locality should at least include the district name.
oSIST prEN 118:2023
prEN 118:2023 (E)
Comparison of these results with those obtained from untreated and solvent or diluent-treated control test
specimens.
5 Test materials
5.1 Biological material
Workers, soldiers and nymphs of an identified termite species of Reticulitermes.
The termite species and the locality of origin should be stated in the test report and their identification should
be proved.
The termites should be obtained from colonies reared as described in Annex B.
5.2 Products and reagents
5.2.1 Substrate for establishing the colonies. A choice of:
5.2.1.1 Fine white quartz sand consisting of grains of crystallized silica, very pure (90 % silica), and free
from any organic substances .
5.2.1.2 A hydrated, laminar, aluminium-iron-magnesium silicate exfoliated to give particles of 1 mm
to 3 mm with an apparent density of 80 kg/ m3 to 90 kg/ m3. Particles of less than 1 mm shall be eliminated
by sieving prior to use, to ensure the absence of free water and prevent any significant agglomeration of the
particles.
5.2.2 Adhesive, which cannot be attacked by the termites and is non-toxic, for securing the tubes. This
adhesive shall also not react with the preservative applied to the wood.
5.2.3 Sealant.
5.2.3.1 Paraffin wax, setting point of 52 °C to 54 °C, for sealing the relevant surfaces of test specimens to
be treated with solutions in which water is the continuous phase.
5.2.3.2 Gelatine, for sealing the relevant surfaces of test specimens to be treated with solutions in which
an organic solvent is the continuous phase.
5.2.3.3 Inert adhesive, for sealing the relevant surfaces of test specimens to be treated with other
solutions in which e.g. an emulsion solvent is the continuous phase.
5.2.4 Water, complying with grade 3 of EN ISO 3696.
5.2.5 Solvent or diluent. A suitable volatile liquid that will dissolve or dilute the preservative but does not
leave a residue in the wood which would have a toxic effect on the insect at the end of the conditioning period.
5.3 Apparatus
5.3.1 Culturing chamber, with air circulation, controlled at (26 ± 2) °C and a minimum relative humidity of
(70 ± 5) %.
In France, Fontainebleau sand, of which more than 97 % of the particles are between 75 µm and 300 µm in size, meets these
requirements.
oSIST prEN 118:2023
prEN 118:2023 (E)
5.3.2 Conditioning chamber, well ventilated, controlled at (20 ± 2) °C and relative humidity (65 ± 5) % .
5.3.3 Laboratory work area, well ventilated, where treatment of the test specimens is carried out .
5.3.4 Testing chamber, protected from light, ventilated and controlled at (26 ± 2) °C and at a minimum
relative humidity of (70 ± 5) %.
5.3.5 Ordinary laboratory equipment for application by brushing or by pipette of a liquid preservative
product and including an analytical balance capable of weighing to an accuracy of 0,01 g.
5.3.6 Protective gloves.
5.3.7 Instruments adapted for termite manipulation (aspirator, forceps).
5.3.8 Glass tubes open at both ends, one end being ground:
— interior diameter: ca. 25 mm;
— length: ca. 110 mm.
6 Sampling
The sample of preservative shall be representative of the product to be tested. Samples should be stored and
handled in accordance with any written recommendations from the supplier.
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).
Additional tests can be made with other timber species but, if so, this should 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.
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 p
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