1、BSI Standards PublicationBS EN 1902:2015A d h e s i v e s T e s t m e t h o d f o r adhesives for floor and wall coverings Shear creep testBS EN 1902:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1902:2015. It supersedes BS EN 1902:1999 which is withdrawn
2、.The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are respons
3、ible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 85709 6 ICS 83.180 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards
4、Policy and Strategy Committee on 30 April 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1902 April 2015 ICS 83.180 Supersedes EN 1902:1999English Version Adhesives - Test method for adhesives for floor and wall cov
5、erings - 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 approved by CEN on 16 February 2015. C
6、EN 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 ap
7、plication 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
8、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, Hungary, Iceland, Ireland, Italy, L
9、atvia, 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-CENELEC Management Centre: Avenue M
10、arnix 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 EBS EN 1902:2015EN 1902:2015 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle 4 5 Appa
11、ratus 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 6.6 Conditioning of tes
12、t specimens .9 7 Test procedure and evaluation of test results 9 8 Test report . 10 BS EN 1902:2015EN 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 European Standard shall be give
13、n 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 elements of this document may b
14、e 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 change of temperature of cond
15、itioning 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 the user to establish appr
16、opriate 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, Bulgaria, Croatia, Cyprus,
17、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, Turkey and the United Kin
18、gdom. BS EN 1902:2015EN 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 of wallpaper. 2 Normative re
19、ferences 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 (including any amendments) applies
20、. 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 atmospheres for conditioning an
21、d/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 adhesive which is intended to
22、 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 Apparatus and materials 5.1 Notc
23、hed trowel, (for the shape of the notch, see Figure 1) with dimensions a, b and c specified by the adhesive manufacturer. BS EN 1902:2015EN 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 (60 5) mm, diameter (90 5) mm
24、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 example see Figure 3). 5.4 Clamping
25、 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 vertically (see Figure 3, for an ex
26、ample of a test arrangement and Figure 4 for an example of a clamp in combination with a weight holder). BS EN 1902:2015EN 1902:2015 (E) 6 Key 1 fibre cement panel 2 bracket 3 test piece 4 weight Figure 3 Test arrangement BS EN 1902:2015EN 1902:2015 (E) 7 Dimensions in millimetres Figure 4 Clamp in
27、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. BS EN 1902:2015EN 1902:2015 (E) 8 5.7 Test covering, five test pieces for each conditioning sequence of dimensions 120 mm 50 mm, the l
28、ong 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 each conditioning sequence with a length of app
29、roximately 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 some preliminary assessment (i.e. peel test
30、s) 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 for testing. 5.9 Heating chamber. 6 Preparatio
31、n 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 tested and examine and prepare it in accordance w
32、ith 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 substrate Place the test panels (5.8) in a
33、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 atmosphere of (23 2) C and (50 5) % relative humidity
34、 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 5) mm to be coated with adhesive. Apply the adhesive under test across the full width of the fibre cement panel usin
35、g 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 the adhesive, it is essential that the serrated
36、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 use. BS EN 1902:2015EN 1902:2015 (E) 9 6.5 Bo
37、nding 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 unbonded length protrudes from the edge of the pane
38、l 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 not yet set it should be ensured that the overlappin
39、g 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 to avoid tilting. For coverings which show a tende
40、ncy 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 recorded in the test report see 8 j). Carefully remove
41、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 specimens for seven days in a standard atmosphere of (23
42、 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 the test specimens and secure them in such a way tha
43、t 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 weight and leave the test specimens for another four day
44、s. 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 of failure is adhesive or cohesive in accordance wi
45、th 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 remaining floor or wall covering. BS EN 1902:2015EN 1
46、902:2015 (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
47、trowel used; e) open time allowed; f) conditioning sequences used; g) individual failure time of the five test specimens rounded down to the nearest day and the mode of failure; h) measurement of any displacement of remaining floor covering or wall covering; i) any deviations from the requirements o
48、f this standard; j) factors that may have affected the result; k) date of the test. This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British S
49、tandards and other standardization products are published by BSI Standards Limited.British Standards Institution (BSI)BSI Group Headquarters389 Chiswick High Road London W4 4AL UKAbout usWe bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions.The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through our open consultation process. Organizations
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