EN ISO 11431:2002

SLOVENSKI STANDARD
01-april-2004
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Building construction - Jointing products - Determination of adhesion/cohesion properties
of sealants after exposure to heat, water and artificial light through glass (ISO
11431:2002)
Hochbau - Fugendichtstoffe - Bestimmung des Haft- und Dehnverhaltens von
Dichtstoffen nach Einwirkung von Wärme, Wasser und künstlichem Licht durch Glas
(ISO/FDIS 11431:2002)
Construction immobiliere - Produits pour joints - Détermination des propriétés
d'adhésivité/cohésion des mastics aprés exposition a la chaleur, a l'eau et a la lumiere
artificielle a travers le verre (ISO 11431:2002)
Ta slovenski standard je istoveten z: EN ISO 11431:2002
ICS:
91.100.50 Veziva. Tesnilni materiali Binders. Sealing materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 11431
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2002
ICS 91.100.50
English version
Building construction - Jointing products - Determination of
adhesion/cohesion properties of sealants after exposure to heat,
water and artificial light through glass (ISO 11431:2002)
Construction immobilière - Produits pour joints - Hochbau - Fugendichtstoffe - Bestimmung des Haft- und
Détermination des propriétés d'adhésivité/cohésion des Dehnverhaltens von Dichtstoffen nach Einwirkung von
mastics aprés exposition à la chaleur, à l'eau et à la Wärme, Wasser und künstlichem Licht durch Glas (ISO
lumière artificielle à travers le verre (ISO 11431:2002) 11431:2002)
This European Standard was approved by CEN on 11 July 2002.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, 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
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11431:2002 E
worldwide for CEN national Members.

CORRECTED  2002-10-02
Foreword
This document (EN ISO 11431:2002) has been prepared by Technical Committee ISO /TC 59
"Building construction" in collaboration with CMC.
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 February 2003, and conflicting national
standards shall be withdrawn at the latest by February 2003.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the
United Kingdom.
Endorsement notice
The text of ISO 11431:2002 has been approved by CEN as EN ISO 11431:2002 without any
modifications.
NOTE  Normative references to International Standards are listed in Annex ZA (normative).
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions
of any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications,
indicated by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 4892-1 1999 Plastics - Methods of exposure to EN ISO 4892-1 2000
laboratory light sources - Part 1:
General guidance
ISO 4892-2 1994 Plastics - Methods of exposure to EN ISO 4892-2 1999
laboratory light sources - Part 2:
Xenon-arc sources
ISO 6927 1981 Building construction - Jointing EN 26927 1990
products - Sealants - Vocabulary
INTERNATIONAL ISO
STANDARD 11431
Second edition
2002-08-15
Building construction — Jointing
products — Determination of
adhesion/cohesion properties of sealants
after exposure to heat, water and artificial
light through glass
Construction immobilière — Produits pour joints — Détermination des
propriétés d'adhésivité/cohésion des mastics après exposition à la chaleur,
à l'eau et à la lumière artificielle à travers le verre

Reference number
ISO 11431:2002(E)
ISO 11431:2002(E)
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ii ISO 2002 – All rights reserved

ISO 11431:2002(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, governmental and non-governmental, in
liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO11431 was prepared by Technical Committee ISO/TC59, Building construction,
Subcommittee SC 8, Jointing products.
This second edition cancels and replaces the first edition (ISO 11431:1993), which has been technically revised.
©
ISO 2002 – All rights reserved iii

INTERNATIONAL STANDARD ISO 11431:2002(E)
Building construction — Jointing products — Determination of
adhesion/cohesion properties of sealants after exposure to heat,
water and artificial light through glass
1 Scope
This International Standard specifies a method for the determination of the adhesion/cohesion properties of sealants
after cyclic exposure to heat and artificial light followed by a period of exposure to water at a defined temperature.
NOTE The cyclic exposure of the test specimens to water and to radiation and heat is meant to simulate the exposure of sealants
in service to natural weather conditions. The acceleration factor in comparison with the real situation is unknown. The intention is
not to receive durability data for the sealants under evaluation but to ensure a minimum performance in glazing applications.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 4892-1:1999, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance
ISO 4892-2, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc sources
ISO 6927, Building construction — Jointing products — Sealants — Vocabulary
ISO 13640, Building construction — Jointing products — Specifications for test substrates
CIE Publication No. 85:1989, Technical Report — Solar spectral irradiance
3 Terms and definitions
For the purposes of this International Standard, the terms and definitions given in ISO 6927 apply.
4 Principle
Specimens are prepared in which the sealant to be tested adheres to two parallel glass surfaces. After submitting the
specimens to a cyclic exposure to artificial light at elevated temperature and to water, the specimens are extended to
a defined width. After maintenance of the extension for a defined time, the specimens are examined for evidence of
loss of adhesion or cohesion.
©
ISO 2002 – All rights reserved 1

ISO 11431:2002(E)
5 Apparatus
5.1 Glass supports, for the preparation of specimens.
For the definition of the glass, see ISO 13640. For each test specimen, two glass supports are required with a cross-
section of dimensions as shown in Figure 1. Test substrates of other dimensions may be used, but the dimensions of
the sealant bead and the area of adhesion shall be the same as those shown in Figure 1. The thickness of the glass
shall be 6mm.
5.2 Spacers, for the preparation of the specimens, of cross-section 12 mm× 12 mm, with anti-adherent surface
(see Figure 1).
If the spacers are made of material to which the sealant adheres, their surface should be made anti-adherent, e.g. by
a thin wax coating or a polyethylene film.
Dimensions in millimetres
Key
1Light
2 Glass supports
3Spacers
4Sealant
Figure 1 — Assembly for specimens and direction of light exposure
©
2 ISO 2002 – All rights reserved

ISO 11431:2002(E)
5.3 Anti-adherent substrate, for the preparation of test specimens, e.g. a polyethylene (PE) film, preferably on the
advice of the sealant manufacturer.
◦
5.4 Ventilated convection-type oven, capable of being maintained at (70± 2) C for conditioning according to
method B.
5.5 Container, for immersing specimens in demineralized or distilled water, for conditioning according to method B.
5.6 Test chamber with an artificial light source (see 5.7), capable of exposure of the test specimens to radiation
under dry conditions at a defined temperature, which is measured on a black standard thermometer.
The test chamber shall be sufficiently ventilated to maintain the test temperature in the dry phase. The radiation is
directed to the surface of one of the glass substrates (see Figure 1).
If fully automated equipment is used, the exposure to water is accomplished in the same test chamber. This can be
done either by immersion or by water spray. Demineralized water shall be used.
Suitable equipment and test procedures for cyclic exposures with intermittent water spray are described in
ISO 4892-1.
If exposure to water is done outside the test chamber in a device where the test specimens are transferred manually,
they shall be immersed in demineralized water at a defined temperature.
Contamination of the water for immersion or spray by-products leached out from the sealants shall be avoided. The
recommended procedure is to test sealants of different chemical type separately and to use fresh water. If the water
has to be recycled because of high consumption (e.g. in spraying), a sufficient exchange with clean water shall be
maintained.
5.7 Artificial light source with suitable filters, for the simulation of the visible and ultraviolet part of daylight as
defined in CIE Publication No. 85. The spectral distribution of radiation shall comply with the requirements outlined in
290 nm
ISO 4892-2 (method A). The irradiance at the surface of the test specimens between w
...