1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 9311-2:2011Adhesives for thermoplasticpiping systemsPart 2: Determination of shear strength (ISO9311-2:2011)BS EN ISO 9311-2:2011 BRITISH STANDARDNational forewordThis
2、British Standard is the UK implementation of EN ISO9311-2:2011. It supersedes BS EN ISO 9311-2:2002 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/52, Adhesives.A list of organizations represented on this committee can beobtained on request to its s
3、ecretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 68376 3ICS 23.040.01; 83.180Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard
4、was published under the authority of theStandards Policy and Strategy Committee on 31 August 2011.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9311-2 August 2011 ICS 23.040.01; 83.180 Supersedes EN ISO 9311-2:2002English Version Adhesi
5、ves for thermoplastic piping systems - Part 2: Determination of shear strength (ISO 9311-2:2011) Adhsifs pour rseaux de tuyauteries en matires thermoplastiques - Partie 2: Dtermination de la rsistance au cisaillement (ISO 9311-2:2011) Klebstoffe fr thermoplastische Rohrleitungssysteme - Teil 2: Best
6、immung der Scherfestigkeit (ISO/FDIS 9311-2:2011)This European Standard was approved by CEN on 29 July 2011. 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 altera
7、tion. Up-to-date lists and bibliographical references concerning such national 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
8、by translation under the responsibility of a CEN member into its own language 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
9、, 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 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPIS
10、CHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9311-2:2011: EBS EN ISO 9311-2:2011EN ISO 9311-2:2011 (E) 3 Foreword This document (EN ISO 9311-2
11、:2011) 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 138 “Plastics pipes, fittings and valves for the transport of fluids“. This European Standard shall be given the status of a national st
12、andard, either by publication of an identical text or by endorsement, at the latest by February 2012, and conflicting national standards shall be withdrawn at the latest by February 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ri
13、ghts. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 9311-2:2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European S
14、tandard: Austria, Belgium, Bulgaria, Croatia, 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 the Uni
15、ted Kingdom. BS EN ISO 9311-2:2011ISO 9311-2:2011(E) ISO 2011 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out thr
16、ough ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collabo
17、rates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Stand
18、ards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of
19、this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 9311-2 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 193, Adhesives, in collaboration with Technical Committee ISO/TC
20、138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 5, General properties of pipes, fittings and valves of plastic materials and their accessories Test methods and basic specifications, in accordance with the Agreement on technical cooperation between ISO and CEN (V
21、ienna Agreement). This second edition cancels and replaces the first edition (ISO 9311-2:2002), which has been technically revised. ISO 9311 consists of the following parts, under the general title Adhesives for thermoplastic piping systems: Part 1: Determination of film properties Part 2: Determina
22、tion of shear strength Part 3: Test method for the determination of resistance to internal pressure BS EN ISO 9311-2:2011ISO 9311-2:2011(E) iv ISO 2011 All rights reservedIntroduction The aim of this part of ISO 9311 is to describe a method to characterize adhesives for thermoplastic piping systems
23、by measuring the shear strength of a bonded joint using a test specimen prepared as described. The results obtained with this method cannot be extrapolated into the resistance of a different specimen perhaps the real life article to destructive shear forces. BS EN ISO 9311-2:2011INTERNATIONAL STANDA
24、RD ISO 9311-2:2011(E) ISO 2011 All rights reserved 1Adhesives for thermoplastic piping systems Part 2: Determination of shear strength SAFETY PRECAUTIONS Persons using this document should be familiar with the normal laboratory practice, if applicable. This document does not purport to address all o
25、f 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. CAUTION It is understood that some of the material permitted in this standard may have negative e
26、nvironmental impact. As technological advantages lead to acceptable alternatives for these materials, they will be eliminated from this standard to the extent possible. At the end of the test, the user of the standard shall take care to carry out an appropriate disposal of the wastes, according to l
27、ocal regulation. 1 Scope This part of ISO 9311 specifies a method for the determination of the shear strength of joints made with adhesives for thermoplastic piping systems. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated re
28、ferences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 15605, Adhesives Sampling EN 923, Adhesives Terms and definitions EN 1067, Adhesives Examination and preparation of samples for testing 3 Terms and
29、definitions For the purposes of this document, the terms and definitions given in EN 923 and the following apply. 3.1 diametrical clearance difference between the mean outside diameter of the pipe and the mean inside diameter of the socket BS EN ISO 9311-2:2011ISO 9311-2:2011(E) 2 ISO 2011 All right
30、s reserved4 Principle The aim is to describe a method to obtain test joints of given dimensions from pipes and fittings, and the measurement of the shear strength of a joint made with the pipes and fittings, but bonded with an adhesive under examination, under specified test conditions. NOTE It is a
31、ssumed that the following parameters are set by the reference standards such as EN 14680 and EN 14814, making reference to the test method described in this part of ISO 9311, namely: a) the pipe and fitting to be used, b) the diametrical clearance in the bonded assembly, and c) the setting time. 5 A
32、pparatus 5.1 A tensile or press testing machine, able to move the jaws at a uniform and steady rate of (5 0,5) mm/min. 5.2 A jig, to connect the test assembly to the machine (suitable arrangements are illustrated in Figures 1, 2 and 3). BS EN ISO 9311-2:2011ISO 9311-2:2011(E) ISO 2011 All rights res
33、erved 3Dimensions in millimetres Key 1 retaining ring 2 split collar 3 bonded assembly 4 collaraConnection to tensile machine. bInternal diameter of collar shall not be less than the outside diameter of the pipe. Figure 1 Example of connecting jig BS EN ISO 9311-2:2011ISO 9311-2:2011(E) 4 ISO 2011 A
34、ll rights reservedDimensions in millimetres Key 1 bonded assembly F pressing device Fsshear strength Figure 2 Example of connecting jig for a reduced bonded area Dimensions in millimetres Key 1 bonded assembly F pressing device Figure 3 Example of connecting jig for pressing device BS EN ISO 9311-2:
35、2011ISO 9311-2:2011(E) ISO 2011 All rights reserved 56 Sampling Take a representative sample of the adhesive to be tested in accordance with ISO 15605 and examine and prepare it for testing in accordance with EN 1067. 7 Procedure 7.1 For each test, prepare five test assemblies each one made of a pip
36、e 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 diametrical clearance shall be obtained by means of a lathe on the internal fitting surface
37、 and never on the pipe external diameter. 7.2 Prepare 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. 7.3 Condition the test pieces at (23 2) C and (50 5) % relative humidi
38、ty for at least 6 h. 7.4 Apply the adhesive as recommended by the adhesive manufacturer. 7.5 Maintain the test assemblies under the curing conditions (23 2) C and (50 5) % relative humidity unless otherwise specified in the relevant product standard. Test pieces have to be maintained in vertical pos
39、ition during the curing time. 7.6 Place 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. 7.7 Record the maximum force required that causes failure of the bonded assembly. 7.8 If the force required to
40、 cause failure exceeds the maximum load of the testing equipment, reduce the bonded area by cutting, just before the specified setting time ends, a ring of width 10 mm from the bonded area of the test assembly (a suitable jig for the ring is illustrated in Figure 2). 8 Expression of results Calculat
41、e the shear strength, Fs, in Megapascals (MPa) of each test assembly using Equation (1): sFFdl= (1) where 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 arithmeti
42、c 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. BS EN ISO 9311-2:2011ISO 9311
43、-2:2011(E) 6 ISO 2011 All rights reserved9 Test report The test report shall include, at least, the following information: a) a reference to this part of ISO 9311, i.e. ISO 9311-2:2011; b) type and identification (batch number, date of manufacture or other code) of the adhesive tested; c) the method
44、 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) diametrical clearance between pipe and fitting; f) the curing conditions; g) the required setting time; h)
45、 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 ISO 9311 and any circumstances which may have affected the results; k) the date of test. BS EN ISO 9311-2:2011ISO 9311-2
46、:2011(E) ISO 2011 All rights reserved 7Bibliography 1 EN 14680:2006, Adhesives for non-pressure thermoplastic piping systems Specifications 2 EN 14814:2007, Adhesives for thermoplastic piping systems for fluids under pressure Specifications This page deliberately left blankThis page deliberately lef
47、t blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.British Standards Institution
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49、aim of BSI to improve the quality of our products and serv-ices. We would be grateful if anyone finding an inaccuracy or ambiguity whileusing this British Standard would inform the Secretary of the technical com-mittee responsible, the identity of which can be found on the inside frontcover.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001BSI offers Members an individual updating service called PLUS which ensuresthat subscribers automatically
