1、July 2015 Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 83
2、.180!%Co_“2327660www.din.deDDIN EN 1902Adhesives Test method for adhesives for floor and wall coverings Shear creep test;English version EN 1902:2015,English translation of DIN EN 1902:2015-07Klebstoffe Prfverfahren fr Klebstoffe fr Boden- und Wandbelge Zeitstand-Scherversuch;Englische Fassung EN 19
3、02:2015,Englische bersetzung von DIN EN 1902:2015-07Adhsifs Mthodes dessai des adhsifs pour revtements muraux et de sol Essai de fluage sous contrainte de cisaillement;Version anglaise EN 1902:2015,Traduction anglaise de DIN EN 1902:2015-07SupersedesDIN EN 1902:1999-10www.beuth.deIn case of doubt, t
4、he German-language original shall be considered authoritative.Document comprises 12 pages 06.15 DIN EN 1902:2015-07 2 A comma is used as the decimal marker. National foreword This document (EN 1902:2015) has been prepared by Technical Committee CEN/TC 193 “Adhesives” (Secretariat: AENOR, Spain). The
5、 responsible German body involved in its preparation was the DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-10-01 AA Prfung von Klebstoffen fr Bodenbelge, Wand- und Deckenbekleidung. Amendments This standard differs from DIN EN 1902:1999-10 a
6、s follows: a) roller dimensions have been changed; b) the conditioning temperature of the substrate has been changed. Previous editions DIN EN 1902: 1999-10 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1902 April 2015 ICS 83.180 Supersedes EN 1902:1999English Version Adhesives - Test method
7、for adhesives for floor and wall coverings - Shear creep test Adhsifs - Mthodes dessai des adhsifs pour revtements muraux et de sol - Essai de fluage sous contrainte de cisaillement Klebstoffe - Prfverfahren fr Klebstoffe fr Boden- und Wandbelge - Zeitstand-Scherversuch This European Standard was ap
8、proved by CEN on 16 February 2015. 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 nati
9、onal 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 langu
10、age 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
11、 Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN
12、-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1902:2015 EEN 1902:2015 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4
13、 4 Principle 4 5 Apparatus and materials .4 6 Preparation of test specimens .8 6.1 Cleaning 8 6.2 Sampling of adhesive 8 6.3 Conditioning of materials .8 6.3.1 Adhesive and floor and wall coverings .8 6.3.2 Fibre cement substrate .8 6.4 Application of adhesive 8 6.5 Bonding of the test covering 9 6.
14、6 Conditioning of test specimens .9 7 Test procedure and evaluation of test results 9 8 Test report . 10 DINEN 1902:2015-07EN 1902:2015 (E) 3 Foreword This document (EN 1902:2015) has been prepared by Technical Committee CEN/TC 193 “Adhesives”, the secretariat of which is held by AENOR. This Europea
15、n Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2015 and conflicting national standards shall be withdrawn at the latest by October 2015. Attention is drawn to the possibility that some of the element
16、s of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1902:1999. The main changes in respect to EN 1902:1999 are the following: the change of the roller dimensions; the chang
17、e of temperature of conditioning of a substrate. SAFETY PRECAUTIONS Persons using this document should be familiar with the normal laboratory practice, if applicable. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of th
18、e 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, Bul
19、garia, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, T
20、urkey and the United Kingdom. DIN EN 1902:2015-07EN 1902:2015 (E) 4 1 Scope This European Standard specifies a test method that gives an assessment of adhesion under long-term shear stress after bonding floor or wall coverings to a given substrate. The term “wall covering” does not include any type
21、of wallpaper. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (inclu
22、ding any amendments) applies. EN 923:2005+A1:2008, Adhesives - Terms and definitions EN 1067, Adhesives - Examination and preparation of samples for testing EN ISO 15605, Adhesives - Sampling (ISO 15605) EN ISO 10365, Adhesives - Designation of main failure patterns (ISO 10365) ISO 554, Standard atm
23、ospheres for conditioning and/or testing - Specifications 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 923:2005+A1:2008 and the following apply. 3.1 covering flexible resilient or textile floor covering or wall covering 3.2 adhesive for coverings a
24、dhesive which is intended to produce firm and durable bonds between coverings and various substrates 4 Principle The bonding performance of a floor or wall covering/adhesive combination is assessed under exposure to a static shear force by monitoring the time until failure of the test pieces. 5 Appa
25、ratus and materials 5.1 Notched trowel, (for the shape of the notch, see Figure 1) with dimensions a, b and c specified by the adhesive manufacturer. DINEN 1902:2015-07EN 1902:2015 (E) 5 Key a notch depth b notch width c notch distance Figure 1 Shape of notches of notched trowel 5.2 Roller, of width
26、 (60 5) mm, diameter (90 5) mm and total mass (3,50 0,05) kg with handle at 90 to the axis (as an example, see Figure 2). Dimensions in millimetres Figure 2 Roller 5.3 Arrangement, in which five panels with a test piece of floor or wall covering adhered to each, can be mounted vertically (as an exam
27、ple see Figure 3). 5.4 Clamping device, to be attached to each of the test pieces to enable a load, in the form of weights, to be applied. The clamping device with weight holder shall have a mass of (2,00 0,01) kg and be designed in such a way that additional 2,0 kg weights are able to be added vert
28、ically (see Figure 3, for an example of a test arrangement and Figure 4 for an example of a clamp in combination with a weight holder). DIN EN 1902:2015-07 EN 1902:2015 (E) 6 Key 1 fibre cement panel 2 bracket 3 test piece 4 weight Figure 3 Test arrangement DIN EN 1902:2015-07 EN 1902:2015(E)7 Dimen
29、sions in millimetres Figure 4 Clamp in combination with a weight holder, mass (2,00 0,01) kg 5.5 Device for automatic monitoring, recommended when adhesive joint failure occurs. 5.6 Primer, if applicable. DIN EN 1902:2015-07 EN 1902:2015 (E) 8 5.7 Test covering, five test pieces for each conditionin
30、g sequence of dimensions 120 mm 50 mm, the long side, running in the machine direction where this can be identified, and shall be taken at least 10 mm from the edge. 5.8 Substrate, one uncoated fibre cement panel, fully compressed and autoclaved, for each test piece. Five fibre cement panels for eac
31、h conditioning sequence with a length of approximately 100 mm and a thickness of approximately 8,0 mm. The width is (50,0 0,5) mm. NOTE Depending on the source of the fibre cement panels the surfaces sometimes differ with respect to gloss, absorbency and strength. In this case, it is important to do
32、 some preliminary assessment (i.e. peel tests) of the panels to identify the preferred side for testing. The preferred side will be called the upper side of the substrate in this standard. If failure of the substrate is the main finding of the preliminary assessment, a suitable primer may be used fo
33、r testing. 5.9 Heating chamber. 6 Preparation of test specimens 6.1 Cleaning Ensure that all test coverings and fibre cement panels are clean and free from dust, loose particles or other contamination. 6.2 Sampling of adhesive Take a sample in accordance with EN ISO 15605 of the adhesive to be teste
34、d and examine and prepare it in accordance with EN 1067. 6.3 Conditioning of materials 6.3.1 Adhesive and floor and wall coverings Condition the materials at a standard atmosphere of (23 2) C and (50 5) % relative humidity in accordance with ISO 554 for at least 24 h prior to use. 6.3.2 Fibre cement
35、 substrate Place the test panels (5.8) in a heating chamber (5.9) for 6 h at (80 2) C. Ensure that the test panels are spaced in such a way as to enable a free passage of air over them. At the end of this period, remove the test panels from the heating oven and store for 48 h in a standard atmospher
36、e of (23 2) C and (50 5) % relative humidity prior to use. 6.4 Application of adhesive Place masking tape across one end of the upper side of each fibre cement panel, (60 0,5) mm from one end, to create an area of (50 5) mm (60 0,5) mm to be coated with adhesive. Apply the adhesive under test across
37、 the full width of the fibre cement panel using a notched trowel (5.1), held at an angle of approximately 60 and draw the notched drowel (5.1) steadily down the length of the panel to provide a uniform adhesive application. Remove the masking tape when the adhesive has been applied. When applying th
38、e adhesive, it is essential that the serrated blade is kept clean and free of adhesive build-up. Clean the blade regularly (no more than five fibre cement panels to be prepared without cleaning). In addition, regularly check the notch size and depth, especially where non-hardened steel blades are in
39、 use. DIN EN 1902:2015-07 EN 1902:2015 (E) 9 6.5 Bonding of the test covering After a time recommended by the adhesive manufacturer (i.e. minimum open time in accordance with EN 923), place the test covering (5.7) onto the coated fibre cement panel (5.8) to provide an overlap of 60 mm such that the
40、unbonded length protrudes from the edge of the panel coated with adhesive. Immediately after positioning the test covering, roll the test specimen with a roller (see 5.2) by passing forward and backward once along the test specimen without any additional pressure being applied. As the adhesive has n
41、ot yet set it should be ensured that the overlapping area remains 60 mm 50 mm without any shift during the subsequent treatments of the test coverings. Before applying the roller it is advisable to support the unbonded area of the test covering by an additional 8 mm thick fibre cement panel in order
42、 to avoid tilting. For coverings which show a tendency to curl after rolling, a dead load of (2,0 0,1) kg mass can be applied for (3 0,5) h. The load is spread evenly over the whole surface thus ensuring a contact over the total bonded area of each test specimen. The procedure applied should be reco
43、rded in the test report see 8 j). Carefully remove with a clean tissue, from the edges of the test specimen, any excess adhesive that has been pressed out. No more than five test specimens shall be stacked. 6.6 Conditioning of test specimens Immediately after preparation, precondition the test speci
44、mens for seven days in a standard atmosphere of (23 2) C and (50 5) % relative humidity, in accordance with ISO 554. 7 Test procedure and evaluation of test results Carry out the shear creep test in a standard atmosphere of (23 2) C and (50 5) % relative humidity, in accordance with ISO 554. Mount t
45、he test specimens and secure them in such a way that they suspend vertically. Secure the clamping devices, each weighing a total of 2 kg, to the free end of the floor or wall covering. Allow the test specimens to remain under these conditions for four days. Increase the load by adding a 2,0 kg weigh
46、t and leave the test specimens for another four days. Then increase the load by adding another 2,0 kg weight to obtain the ultimate total load of 6,0 kg. Allow the test specimens to remain under this load for 52 d or until the joint fails. Inspect the failure mode then to determine whether the type
47、of failure is adhesive or cohesive in accordance with EN ISO 10365. The time to obtain failure in each of the five floor or wall covering/adhesive joints on the baseplate can be monitored automatically (5.5). After the test period has elapsed, measure to the nearest millimetre any displacement of re
48、maining floor or wall covering. DIN EN 1902:2015-07 EN 1902:2015 (E) 10 8 Test report The test report shall include at least the following: a) reference to this European Standard, i.e. EN 1902; b) designation of the adhesive together with the batch number; c) designations of test covering and primer if optional used for substrate preparation; d) notched trowel used; e) open time allowed; f) conditioning sequences used; g) individual failure time of the five test spe
