SIST 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



EN 14293:2006 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Test methods- procedures.4 4.1 Sampling and test conditions.4 4.2 Test method for the determination of the rib height after a certain time.5 4.2.1 Principle.5 4.2.2 Material.5 4.2.3 Apparatus.5 4.2.4 Test procedure and evaluation of test results.6 4.3 Test method for determining shear strength.7 4.3.1 Principle.7 4.3.2 Material.7 4.3.3 Apparatus.7 4.3.4 Preparation of test specimens.8 4.3.5 Test procedure and evaluation of test results.8 4.4 Test method for the determination of tensile strength.8 4.4.1 Principle.8 4.4.2 Material.9 4.4.3 Apparatus.9 4.4.4 Preparation of test specimens.9 4.4.5 Test procedure.9 4.4.6 Evaluation and expression of test results.10 4.5 Test method for determining maximum open time by measuring shear strength.10 4.5.1 Principle.10 4.5.2 Material.11 4.5.3 Apparatus.11 4.5.4 Preparation of test specimen.11 4.5.5 Test procedure and evaluation of test results.11 4.6 Test method for determining maximum open time by measuring tensile strength.12 4.6.1 Principle.12 4.6.2 Material.12 4.6.3 Apparatus.12 4.6.4 Preparation of test specimen.12 4.6.5 Test procedure and evaluation of test results.12 4.7 Test method for determining shear strength of soft adhesives.13 4.7.1 Principle.13 4.7.2 Material.14 4.7.3 Apparatus.14 4.7.4 Preparation of test specimens.14 4.7.5 Test procedure and evaluation of test results.15 5 Test report.16 6 Minimum requirements.16



EN 14293:2006 (E) 3 Foreword This document (EN 14293:2006) has been prepared by Technical Committee CEN/TC 193 “Adhesives”, the secretariat of which is held by AENOR. 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 2007, and conflicting national standards shall be withdrawn at the latest by February 2007. SAFETY STATEMENT Persons using this document should be familiar with the normal laboratory practice, in principle. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any regulatory conditions. 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.



EN 14293:2006 (E) 4 1 Scope This European Standard specifies test methods for adhesives for bonding parquet and similar wood floorings to a subfloor.
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.



EN 14293:2006 (E) 5 All test methods shall be carried out under standard conditions at (23 ± 2) ºC and at a (50 ± 5)% relative humidity in accordance with ISO 554. Condition all test materials for at least 24 h under standard conditions.
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).



EN 14293:2006 (E) 6 Dimensions in millimetres
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.



EN 14293:2006 (E) 7
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 Material 4.3.2.1 Mosaic parquet finger according to EN 13488, oak with dimensions of approximately
(140 to 165) mm x 23 mm x 8 mm. 4.3.2.2 Sample of adhesive, for testing. 4.3.3 Apparatus 4.3.3.1 Notched trowel (shape of notch see Figure 1), dimensions as follows:  notch depth:
a = (3,6 ± 0,2) mm;  notch width:
b =(3,4 ± 0,2) mm;  notch distance: c = (3,4 ± 0,2) mm.



EN 14293:2006 (E) 8 4.3.3.2 Weights, 2 kg ± 1 g mass each. 4.3.3.3 Timer, accuracy 1 s. 4.3.3.4 Tensile testing machine with a transverse rate of (20 ± 2) mm/min and a maximum force of 5 kN to 10 kN. 4.3.3.5 Oven, air circulating oven capable of controlling the temperature to within ± 2 °C. 4.3.4 Preparation of test specimens With the trowel held vertically, spread the adhesive on one end of the mosaic parquet finger, so that an area of approximately 800 mm2 is wetted. The ribs of the adhesive shall be nearly at right angles to the length of the mosaic parquet finger. Immediately or after a waiting time as required by the adhesive manufacturer, form the single test specimen by pressing a second mosaic parquet finger on every prepared finger. The overlap bond area shall be 600 mm2. The fingers shall be parallel.
Every bond shall be loaded with a weight of 2 kg for 60 s. Store two groups of test specimens free of tension as follows: a) 10 test specimens for a total of 28 days, in detail:
– 7 days at standard conditions 23/50 in accordance with ISO 554;
– 20 days at 40 °C;
– 1 day at standard conditions 23/50 in accordance with ISO 554;
b) 10 test specimens for 3 days at standard conditions 23/50 in accordance with ISO 554.
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