SIST EN 118:2005

SLOVENSKI STANDARD
SIST EN 118:2005
01-julij-2005
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SIST EN 118:1995
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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 du bois - Détermination de l'action préventive contre les
especes Reticulitermes (termites européens) (Méthode de laboratoire)
Ta slovenski standard je istoveten z: EN 118:2005
ICS:
71.100.50 .HPLNDOLMH]D]DãþLWROHVD Wood-protecting chemicals
SIST EN 118:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 118:2005

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SIST EN 118:2005



EUROPEAN STANDARD
EN 118

NORME EUROPÉENNE

EUROPÄISCHE NORM
March 2005
ICS 71.100.50 Supersedes EN 118:1990
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 Wirkung
l'action préventive contre les espèces de Reticulitermes gegenüber Reticulitermes-Arten (europäische Termiten)
(termites européens) (Méthode de laboratoire) (Laborverfahren)
This European Standard was approved by CEN on 3 February 2005.

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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.




EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 118:2005: E
worldwide for CEN national Members.

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SIST EN 118:2005
EN 118:2005 (E)
Contents Page
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

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SIST EN 118:2005
EN 118:2005 (E)
Foreword
This document (EN 118:2005) has been prepared by Technical Committee CEN/TC 38 “Durability of wood and
derived materials”, 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 September 2005, and conflicting national standards shall be withdrawn at the
latest by September 2005.
This document supersedes EN 118:1990.
Significant technical differences between this document and EN 118:1990 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.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

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SIST EN 118:2005
EN 118:2005 (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).
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EN 118:2005 (E)

1 Scope
This document specifies a method for the determination of the preventive action of a wood preservative against the
1)
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 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 ISO 3696, 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 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.

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.
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2)
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.
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.
NOTE 1 The termite species and the locality of origin should be stated in the test report and their identification should be
proved.
NOTE 2 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 (99,5 % silica), and free
3)
from any organic substances .
5.2.1.2 An hydrated, laminar, aluminium-iron-magnesium silicate exfoliated to give particles of 1 mm to
3 3
3 mm with an apparent density of 80 kg/ m to 90 kg/ m . 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.

2) 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.
3) In France, Fontainebleau sand, of which more than 97 % of the particles are between 75 µm and 300 µm in size, meets
these requirements.
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5.3 Apparatus
5.3.1 Culturing chamber, with air circulation, controlled at (26 ± 2) °C and a minimum relative humidity of
(70 ± 5) %.
4)
5.3.2 Conditioning chamber, well ventilated, controlled at (20 ± 2) °C and relative humidity (65 ± 5) % .
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: 25 mm;
 length: 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.
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).
NOTE 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.
NOTE 1 Wood that has been kiln dried at temperatures below 60 °C may be used.

4)
The conditioning of test specimens after treatment is permissible in the laboratory work area (5.3.3) provided that this meets
the conditions specified for the conditioning chamber (5.3.2).
5) It is essential to follow proper safety measures for handling flammable or toxic material. It is essential that operators avoid
excessive exposure to solvents or their vapours.


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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.
7.3 Provision of test specimens
Prepare planed strips with a fine-sawn finish and having a cross-section of (50 ± 0,5) mm x (10 ± 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)°mm 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 specimen after reaching equilibrium in the conditioning chamber (5.3.2) shall be
(50 ± 0,5) mm x (50 ± 0,5) mm x (10 ± 0,5) mm.
The surface area of the face to be treated is theoretically 25 cm² but an allowance shall be made for any
encroachment of the sealing compound on to this face.
Mark each test specimen so that it can be identified throughout the test.
7.5 Number and distribution of test specimens
The test specimens shall be divided as follows:
a) treated test specimens: these are the treated test specimens which are subject to attack by Reticulitermes; use
at least 6 treated test specimens;
b) untreated control test specimens for checking the virulence of the termites taken for the test: these untreated test
specimens are subjected to attack by Reticulitermes; for each series of tests use at least three control test
specimens;
c) control test specimens treated with the product free of active ingredients are subjected to attack by
Reticulitermes; they are three in number.
7.6 Inserts
The inserts are discs of untreated Scots Pine sapwood, (1 ± 0,2) mm thick and having a diameter about 1 mm
to 2 mm less than the interior diameter of the tubes (5.3.8), so that they fit snugly into the tubes after moistening.
8 Procedure
8.1 Preparation of the test specimens
8.1.1 Conditioning of 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 the transverse and the narrower longitudinal faces
Seal the transverse and the narrower longitudi
...