1、December 2011 Translation by DIN-Sprachendienst.English price group 9No 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).IC
2、S 83.180!$xU)“1855006www.din.deDDIN EN ISO 9311-2Adhesives for thermoplastic piping systems Part 2: Determination of shear strength (ISO 9311-2:2011)English translation of DIN EN ISO 9311-2:2011-12Klebstoffe fr thermoplastische Rohrleitungssysteme Teil 2: Bestimmung der Scherfestigkeit (ISO 9311-2:2
3、011)Englische bersetzung von DIN EN ISO 9311-2:2011-12Adhsifs pour rseaux de tuyauteries en matires thermoplastiques Partie 2: Dtermination de la rsistance au cisaillement (ISO 9311-2:2011)Traduction anglaise de DIN EN ISO 9311-2:2011-12SupersedesDIN EN ISO 9311-2:2002-10www.beuth.deDocument compris
4、es 13 pagesIn case of doubt, the German-language original shall be considered authoritative.w11.11 DIN EN ISO 9311-2:2011-12 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 138 “Plastics pipes, fittings and valves for the trans
5、port of fluids” (Secretariat: SNV, Switzerland) in collaboration with Technical Committee CEN/TC 193 “Adhesives” (Secretariat: AENOR, Spain). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Working Committee NA 054-05-03 AA
6、Fittings fr Druckrohre aus Thermoplasten. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 15605 DIN EN ISO 15605 Amendments This standard differs from DIN EN ISO 9311-2:2002-10 as follows: a) Foreword, Introduction and Clauses 4 and 8 have
7、 been editorially revised; b) normative references have been updated; c) in Clause 3 “Terms and definitions”, 3.1 diametral clearance has been included. Previous editions DIN EN ISO 9311-2: 2002-10 National Annex NA (informative) Bibliography DIN EN ISO 15605, Adhesives Sampling EUROPEAN STANDARD NO
8、RME EUROPENNE EUROPISCHE NORM EN ISO 9311-2 August 2011 ICS 23.040.01; 83.180 Supersedes EN ISO 9311-2:2002English Version Adhesives for thermoplastic piping systems - Part 2: Determination of shear strength (ISO 9311-2:2011) Adhsifs pour rseaux de tuyauteries en matires thermoplastiques - Partie 2:
9、 Dtermination de la rsistance au cisaillement (ISO 9311-2:2011) Klebstoffe fr thermoplastische Rohrleitungssysteme - Teil 2: Bestimmung der Scherfestigkeit (ISO 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 Regul
10、ations 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 CEN-CENELEC Management Centre or to any CEN membe
11、r. 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 Management Centre has the same status as the official versions. CE
12、N members are the national standards bodies of 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,
13、Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES 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 nationa
14、l Members. Ref. No. EN ISO 9311-2:2011: EContents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Principle6 5 Apparatus .6 6 Sampling.9 7 Procedure .9 8 Expression of results 9 9 Test report 10 Bibliography 11 DIN EN ISO 9311-2:2011-12 EN ISO 9311-2:20
15、11 (E) 2 Foreword This document (EN ISO 9311-2:2011) 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 Stand
16、ard shall be given the status of a national standard, 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
17、 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 ISO 9311-2:2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following co
18、untries are bound to implement this European Standard: 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, Sl
19、ovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN ISO 9311-2:2011-12 EN ISO 9311-2:2011 (E) 3 Introduction The aim of this part of ISO 9311 is to describe a method to characterize adhesives for thermoplastic piping systems by measuring the shear strength of a bonded joint using a tes
20、t 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. DIN EN ISO 9311-2:2011-12 EN ISO 9311-2:2011 (E) 4 SAFETY PRECAUTIONS Persons using this document shou
21、ld 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 appropriate safety and health practices and to ensure compliance with any regula
22、tory conditions. CAUTION It is understood that some of the material permitted in this standard may have negative environmental 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
23、 test, the user of the standard shall take care to carry out an appropriate disposal of the wastes, according to local 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
24、references The following referenced documents are indispensable for the application of this document. For dated references, 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,
25、Adhesives Terms and definitions EN 1067, Adhesives Examination and preparation of samples for testing 3 Terms and 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 o
26、f the pipe and the mean inside diameter of the socket DIN EN ISO 9311-2:2011-12 EN ISO 9311-2:2011 (E) 5 4 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 fitting
27、s, but bonded with an adhesive under examination, under specified test conditions. NOTE It is assumed 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 fittin
28、g to be used, b) the diametrical clearance in the bonded assembly, and c) the setting time. 5 Apparatus 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 illu
29、strated in Figures 1, 2 and 3). DIN EN ISO 9311-2:2011-12 EN ISO 9311-2:2011 (E) 6 Dimensions 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 Ex
30、ample of connecting jig DIN EN ISO 9311-2:2011-12 EN ISO 9311-2:2011 (E) 7 Dimensions 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 Exampl
31、e of connecting jig for pressing device DIN EN ISO 9311-2:2011-12 EN ISO 9311-2:2011 (E) 8 6 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
32、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 diametrical clearance shall be obtained by means of a
33、 lathe on the internal fitting surface 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
34、 (23 2) C and (50 5) % relative humidity 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
35、 have to be maintained in vertical position 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
36、assembly. 7.8 If the force required to 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 Figur
37、e 2). 8 Expression of results Calculate 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 millimetre
38、s. 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
39、 stated. DIN EN ISO 9311-2:2011-12 EN ISO 9311-2:2011 (E) 9 9 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 te
40、sted; 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) diametrical clearance between pipe and fitting; f) the curing conditions; g) the requir
41、ed 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 ISO 9311 and any circumstances which may have affected the results; k) the date of test. DIN EN ISO 9311-2:2011-12 EN ISO 9311-2:2011 (E) 10 Bibliography 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 DIN EN ISO 9311-2:2011-12 EN ISO 9311-2:2011 (E) 11
