EN 117:2023

SLOVENSKI STANDARD
01-marec-2024
Nadomešča:
SIST EN 117:2013
Zaščitna sredstva za les - Ugotavljanje toksičnih vrednosti proti termitom iz rodu
Reticulitermes (evropskim termitom) (laboratorijska metoda)
Wood preservatives - Determination of toxic values against Reticulitermes species
(European termites) (Laboratory method)
Holzschutzmittel - Bestimmung der Grenze der Wirksamkeit gegenüber Reticulitermes-
Arten (Europäische Termiten) (Laboratoriumsverfahren)
Produit de préservation du bois - Détermination du seuil d'efficacité contre les termites
européens du genre Reticulitermes (Méthode de laboratoire)
Ta slovenski standard je istoveten z: EN 117:2023
ICS:
71.100.50 Kemikalije za zaščito lesa Wood-protecting chemicals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 117
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2023
EUROPÄISCHE NORM
ICS 71.100.50 Supersedes EN 117:2012
English Version
Wood preservatives - Determination of toxic values
against Reticulitermes species (European termites)
(Laboratory method)
Produit de préservation du bois - Détermination du Holzschutzmittel - Bestimmung der Grenze der
seuil d'efficacité contre les termites européens du Wirksamkeit gegenüber Reticulitermes-Arten
genre Reticulitermes (Méthode de laboratoire) (Europäische Termiten) (Laboratoriumsverfahren)
This European Standard was approved by CEN on 6 November 2023.

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-CENELEC 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-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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N

EUROPÄISCHES KOMITEE FÜR NORM UN G

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. EN 117:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Test materials . 6
5.1 Biological material . 6
5.2 Products and reagents . 6
5.3 Apparatus . 6
6 Sampling . 7
7 Test specimens . 8
7.1 Species of wood . 8
7.2 Wood quality . 8
7.3 Provision of test specimens . 8
7.4 Dimensions of test specimens . 8
7.5 Number and distribution of test specimens . 8
8 Procedure. 9
8.1 Preparation of test specimens . 9
8.1.1 Conditioning of test specimens prior to treatment . 9
8.1.2 Treatment of test specimens . 9
8.1.3 Drying and conditioning of the test specimens after treatment . 10
8.2 Exposure of the test specimens to the insects . 10
8.2.1 Collecting and selecting the termites . 10
8.2.2 Installation of the termites . 11
8.2.3 Exposure . 11
8.3 Conditions and duration of test . 12
8.3.1 Exposure . 12
8.3.2 Maintaining of moisture content . 13
8.4 Examination of the test specimens and colonies - Assessments . 13
8.4.1 General . 13
8.4.2 Visual examination . 14
8.4.3 Validity of the tests . 14
9 Expression of results . 15
10 Test report . 15
Annex A (informative) Example of a test report . 17
Annex B (informative) Example of a method of culturing termites . 19
Annex C (informative) Environmental, health and safety precautions within
chemical/biological laboratory . 20
Bibliography . 21
European foreword
This document (EN 117:2023) has been prepared by Technical Committee CEN/TC 38 “Durability of
wood and wood-based products”, the secretariat of which is held by SIS.
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 June 2024, and conflicting national standards shall be
withdrawn at the latest by June 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 117:2012.
The main changes compared to the previous edition EN 117:2012 are listed below:
a) the required purity of fine white quartz sand was lowered (5.2.1.1);
b) the values for the examination of termite attack in rating 2a) and 3a) were slightly changed to close
rating gaps (8.4.2).
NOTE 1 The species name “Reticulitermes santonensis” is officially withdrawn and replaced by Reticulitermes
flavipes. This document uses the preferred nomenclature.
NOTE 2 Test results obtained according to earlier versions of this document and when the tests had started
before this version of EN 117 was published are considered as valid.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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 the United
Kingdom.
Introduction
This document describes a laboratory method of testing which gives a basis for assessment of the
effectiveness of a wood preservative against the Reticulitermes species of subterranean termites. It allows
the determination of the concentration at which the product completely prevents attack by these insects
of impregnated wood of a susceptible species.
This laboratory method provides one criterion by which the value of a product can be assessed. In making
this assessment the methods by which the preservative can be applied should be taken into account. It is
further recommended that results from this 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 and conditioning chambers as well as special
training for personnel (see also Annex C for environmental, health and safety precautions).

1 Scope
This document specifies a method for the determination of the toxic values of a wood preservative against
the Reticulitermes species of European termites.
NOTE 1 The method can be applied not only to different species of Reticulitermes, but also to other species of
the family of the Rhinotermitidae, adapting the conditions of temperature and humidity where necessary to the
specific requirements of the species concerned.
This method is applicable to:
— water-insoluble chemicals which are being studied as active insecticides;
— organic water-dispersible formulations as supplied or as prepared in the laboratory by dilution of
concentrates;
— 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.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
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
4 Principle
Impregnation of several sets of test specimens of susceptible wood with a series of solutions in which the
concentration of preservative is ranged in a given progression.
Exposure of these test
...