BS-EN-ISO-9311-2-2002.pdf

BRITISH STANDARD BS EN ISO 9311-2:2002 Adhesives for thermoplastic piping systems Part 2: Determination of shear strength The European Standard EN ISO 9311-2:2002 has the status of a British Standard ICS 83.180 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 9311-2:2002 This British Standard, having been prepared under the direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 12 September 2002 © BSI 12 September 2002 ISBN 0 580 40356 4 National foreword This British Standard is the official English language version of EN ISO 9311-2:2002. It is identical with ISO 9311-2:2002. The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN ISO 9311-2 August 2002 ICS 83.180 English version Adhesives for thermoplastic piping systems - Part 2: Determination of shear strength (ISO 9311-2:2002) Adhésifs pour réseaux de tuyauteries en matières thermoplastiques - Partie 2: Détermination de la résistance au cisaillement (ISO 9311-2:2002) Klebstoffe für thermoplastische Rohrleitungssysteme - Teil 2: Bestimmung der Scherfestigkeit (ISO 9311-2:2002) This European Standard was approved by CEN on 6 April 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 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9311-2:2002 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9311-2:2002 (E) 2 Contents page Foreword3 Introduction.4 1Scope 5 2Normative references 5 3Terms and definitions5 4Principle5 5Safety 5 6Apparatus .5 7Sampling.5 8Procedure .6 9Expression of results 6 10Test report 7 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9311-2:2002 (E) 3 Foreword This document (EN ISO 9311-2:2002) has been prepared by Technical Committee CEN/TC 193 “Adhesives“, the secretariat of which is held by AENOR, in collaboration with Technical Committee ISO/TC 61 “Plastics“. 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 January 2003, and conflicting national standards shall be withdrawn at the latest by January 2003. This European Standard is one of a series of standards as listed below : - prEN ISO 9311-1 Adhesives for thermoplastic piping systems - Part 1 : Determination of film properties (ISO/FDIS 9311-1:2001). - prEN ISO 9311-2 Adhesives for thermoplastic piping systems - Part 2 : Determination of shear strength (ISO/FDIS 9311-2:2001). 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. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9311-2:2002 (E) 4 Introduction The aim of this European Standard is to describe a method to characterize adhesives for thermoplastic piping systems by measuring the shear strength of a bonded joint using a test specimen prepared as described. The results obtained with this method should not be extrapolated into the resistance of a different specimen perhaps the real life article to destructive shear forces. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9311-2:2002 (E) 5 1 Scope This part of EN ISO 9311 specifies a method for the determination of the shear strength of joints made with adhesives for thermoplastic piping systems. 2 Normative references 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). EN 923, Adhesives Terms and definitions EN 1066, Adhesives Sampling EN 1067, Adhesives Examination and preparation of samples for testing 3 Terms and definitions For the purposes of this part of EN ISO 9311 the terms and definitions given in EN 923 apply. 4 Principle Obtaining test joints of given dimensions from pipes and fittings. Measurement of the shear strength of a joint made with this pipes and fittings, but bonded with an adhesive under examination, under specified test conditions. 5 Safety Persons using this standard shall be familiar with normal laboratory practice. This standard does not purport to address all the safety problems, if any, associated with its use. It is the responsibility of the user to establish safety and health practices and to ensure compliance with any European or national regulatory conditions. 6 Apparatus 6.1 A tensile or press testing machine, able to move the jaws at a uniform and steady rate of (5 ± 0,5) mm/min. 6.2 A jig, to connect the test assembly to the machine (suitable arrangements are illustrated in Figures 1, 2 and 3). 7 Sampling Take a representative sample of the adhesive to be tested as described in EN 1066 and examine and prepare it for testing as described in EN 1067. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9311-2:2002 (E) 6 8 Procedure 8.1Use pipe and fitting materials appropriate to the application of the adhesive, for example PVC-U pipe and fitting for an adhesive intended for jointing PVC-U systems. 8.2For each test prepare five test assemblies each one made of a pipe length 75 mm, external diameter 40 mm, and a fitting with a joint contact depth of 20 mm minimum. The assembly shall be of a suitable total wall thickness to withstand the force applied during the test. The clearance diameter shall be obtained by means of a lathe on the internal fitting surface and never on the pipe external diameter. 8.3Prepare the pipe and fitting contact surfaces following the adhesive manufacturer recommendations. Remove any swarf and other debris from the joining surfaces of the fitting and pipe. 8.4Condition the test pieces at (23 ± 2) ºC and (50 ± 5) % relative humidity for at least 6 h. 8.5Apply the adhesive as recommended by the adhesive manufacturer. 8.6Maintain the test assemblies under the curing conditions (23 ± 2) ºC and (50 ± 5) % relative humidity unless otherwise specified. 8.7Place the test assembly in the appropriate jig at the required test temperature and apply a force by separation or compression at a rate of (5 ± 0,5) mm/min. 8.8Record the maximum force required that causes failure of the bonded assembly. 8.9If the force required to cause failure exceeds the maximum load of the testing equipment, reduce the bonded area by cutting a ring of width 10 mm from the bonded area of the test assembly (Figure 2). 9 Expression of results Calculate the shear strength, S, in Megapascals (MPa) of each test assembly using the equation: l d ? F =S F is the force required to cause failure, in Newtons d is the internal diameter of the fitting, in millimetres l is the length of the joint, in millimetres The shear strength is the arithmetic mean of the results obtained for the five test assemblies. No result shall be discarded and no correction shall be applied to apparently doubtful results without a justification based on experimental, technical or other evident grounds, which should be clearly stated. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9311-2:2002 (E) 7 10 Test report The test report shall include, at least, the following information : a) a reference to this European Standard; b) type and identification (batch number, date of manufacture or other code) of the adhesive tested; c) the method used to prepare the test pieces and their joint contact surfaces; d) the shear strength of the individual tests, the arithmetic means, together with the information about discarded results; e) diametral clearance between pipe and fitting; f) the curing conditions; g) the required setting time; h) the test temperature; i) the complete identification and reference of pipes and fittings used and their dimensions; j) any modification to the procedure described in this part of EN ISO 9311 and any circumstances which may have affected the results; k) the date of test. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9311-2:2002 (E) 8 Dimensions in millimetres Key 1Retaining ring5 Collar a 2Split collar 3Bonded assembly 4 Connection to tensile machine a Internal diameter of collar shall not be less than the outside diameter of the pipe Figure 1 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9311-2:2002 (E) 9 Dimensions in millimetres Key 1Test piece Figure 2 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9311-2:2002 (E) 10 Dimensions in millimetres Key 1Pressing device 2Bonded assembly Figure 3 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:11:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 9311-2:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. 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