EN 14293:2006

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Adhesives - Adhesives for bonding parquet to subfloor - Test methods and minimum requirementsLepila - Lepila za lepljenje parketa na podlago - Preskusne metode in minimalne zahteveAdhésifs - Adhésifs pour le collage de parquet au sol - Méthodes d'essai et exigences minimales en matiere de résistance au cisaillement et a la tractionKlebstoffe - Klebstoffe für das Kleben von Parkett auf einen Untergrund - Prüfverfahren und MindestanforderungenTa slovenski standard je istoveten z:EN 14293:2006SIST EN 14293:2006en83.180LepilaAdhesivesICS:SLOVENSKI
STANDARDSIST EN 14293:200601-december-2006

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14293August 2006ICS 83.180 English VersionAdhesives - Adhesives for bonding parquet to subfloor - Testmethods and minimum requirementsAdhésifs - Adhésifs pour le collage de parquet au sol -Méthodes d'essai et exigences minimales en matière derésistance au cisaillement et à la tractionKlebstoffe - Klebstoffe für das Kleben von Parkett auf einenUntergrund - Prüfverfahren und MindestanforderungenThis European Standard was approved by CEN on 30 June 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14293:2006: E

It also specifies the minimum requirements for shear strength and tensile strength to be achieved with these adhesives, as well as a method for determining the open time. there are two different test methods and different minimum requirements for determing the shear strength for hard and soft adhesives. This Standard does not refer to the selection and installation of parquet floorings. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 923:2005, Adhesives — Terms and definitions EN 1067, Adhesives — Examination and preparation of samples for testing EN 1323, Adhesives for tiles — Concrete slab for test EN 13488, Wood flooring — Mosaic parquet elements EN ISO 10365, Adhesives — Designation of main failure patterns (ISO 10365:1992) EN ISO 15605, Adhesives — Sampling (ISO 15605:2000) ISO 554, Standard atmospheres for conditioning and/or testing — Specifications 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 923:2005 and the following apply. 3.1 hard adhesives adhesives which show a shear elongation factor of less than 2 3.2 soft adhesives
adhesives which show a shear elongation factor of 2 or more 3.3 shear elongation deformation of the unit thickness of an adhesive under a shear force 4 Test methods- procedures 4.1 Sampling and test conditions Take the adhesive sample to be tested in accordance with EN ISO 15605 and examine and prepare it for testing in accordance with EN 1067.

The shape of the notches shall be triangular for all notched trowels (see Figure 1).
Key a notch depth b notch width c notch distance Figure 1 - Shape of notches of notched trowels 4.2 Test method for the determination of the rib height after a certain time 4.2.1 Principle The adhesive is spread on a base plate with a specified notched trowel. A testing plate made of glass is laid down at a given angle into the adhesive layer, and the wetted distance on this plate is measured. 4.2.2 Material 4.2.2.1 Sample of adhesive, for testing. 4.2.2.2 Self adhesive tape 4.2.3 Apparatus 4.2.3.1 Notched trowel (shape of the notch see Figure 1), dimensions are as follows:  notch depth:
a = (5,0 ± 0,2) mm;  notch width:
b = (5,0 ± 0,2) mm;  notch distance: c = (5,0 ± 0,2) mm. 4.2.3.2 Timer, accuracy 1 s. 4.2.3.3 Testing plate, made of glass with dimensions of approximately 150 mm x 100 mm x 2 mm, with a round rod of metal or glass with dimensions of approximately 100 mm lengthwise and with an aproximate diameter of 4 ± 0,05 mm, bonded on the glass plate (see Figure 2).

Key 1 glass plate, approximately 2 mm thickness 2 rod, metal or glass Figure 2 - Testing plate 4.2.3.4 Base plate, made of glass, with dimensions of approximately 300 mm x 300 mm x 4 mm. 4.2.3.5 Ruler, readable to 1 mm. 4.2.4 Test procedure and evaluation of test results Apply two parallel strips of self adhesive tape on the base plate perpendicularly to the length of the base plate leaving a distance of approximately 70 mm width unmasked. Hold the notched trowel vertically and spread the adhesive from one tape to the second. Immediately remove the strips of self adhesive tape.
After 2 min ± 15 s lay in the testing plate parallel to the ribs and press it carefully down, without sliding, until the testing plate touches the base plate along both supporting lines. Immediately after, measure the distance X in mm as the mean value over all ribs, illustrating how far the testing plate is wetted by the adhesive. A test assembly is shown in Figure 3.

Dimensions in millimetres
key 1 base plate 2 rod 3 adhesive 4
testing plate 5 supporting line X wetted distance
The value X is representative for the height of the ribs. Figure 3 - Test assembly, side view 4.3 Test method for determining shear strength
4.3.1 Principle Two mosaic parquet fingers are lap bonded and stored under two different conditions. After conditioning, the test specimens are clamped in a tensile testing machine and an increasing tensile force is applied until breakage. The shear strength is then calculated. 4.3.2
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