1、BSI Standards PublicationBS EN ISO 3503:2015Plastics piping systems Mechanical joints betweenfittings and pressure pipes Test method for leaktightnessunder internal pressure ofassemblies subjected tobendingBS EN ISO 3503:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implement
2、ation of EN ISO 3503:2015.It supersedes BS EN 713:1995 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/88/4, Test Methods - Plastic Piping.A list of organizations represented on this committee can be obtained on request to its secretary.This public
3、ation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 81756 4ICS 23.040.60Compliance with a British Standard cannot confer immunity
4、 from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2015.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3503 March 2015 ICS 23.040.60 Super
5、sedes EN 713:1993English Version Plastics piping systems - Mechanical joints between fittings and pressure pipes - Test method for leaktightness under internal pressure of assemblies subjected to bending (ISO 3503:2015) Systmes de canalisations en plastique - Assemblages mcaniques entre raccords et
6、tubes sous pression - Mthode dessai pour ltanchit sous pression interne de montages soumis une courbure (ISO 3503:2015) Kunststoff-Rohrleitungssysteme - Mechanische Verbindungen zwischen Fittings und Druckrohren - Prfverfahren fr die Dichtheit von Verbindungen bei Innendruck und gleichzeitiger Biege
7、beanspruchung (ISO 3503:2015) This European Standard was approved by CEN on 8 November 2014. 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
8、 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 by translation u
9、nder 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, Finland, Forme
10、r 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT E
11、UROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-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 ISO 3503:2015 EEN ISO 3503:2015 (E) 3 Foreword This docume
12、nt (EN ISO 3503:2015) has been prepared by Technical Committee ISO/TC 138 “Plastics pipes, fittings and valves for the transport of fluids“ in collaboration with Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems” the secretariat of which is held by NEN. This European Standa
13、rd shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2015, and conflicting national standards shall be withdrawn at the latest by September 2015. Attention is drawn to the possibility that some of the elements o
14、f 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 713:1993. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countrie
15、s are bound to implement this European Standard: Austria, Belgium, Bulgaria, 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
16、, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 3503:2015 has been approved by CEN as EN ISO 3503:2015 without any modification. BS EN ISO 3503:2015ISO 3503:2015(E)Foreword iv1 Scope . 12 Normative references 13 P
17、rinciple 14 Test parameters and requirements 15 Apparatus . 26 Test pieces . 47 Procedure. 48 Test report . 4Annex A (normative) Test parameters . 5 ISO 2015 All rights reserved iiiContents PageBS EN ISO 3503:2015ISO 3503:2015(E)ForewordISO (the International Organization for Standardization) is a w
18、orldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented
19、on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this
20、 document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Dir
21、ectives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the devel
22、opment of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO s
23、pecific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information .The committee responsible for this document is ISO/TC 138, Plastics p
24、ipes, 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.This second edition cancels and replaces the first edition (ISO 3503:1976) which has been techni
25、cally revised. The reason for modification is for applicability to other plastics materials, other sizes, and/or other test conditions and alignment with texts of other International Standards on test methods.The modifications are the following: no material is mentioned; test parameters are omitted,
26、 although the original test parameters can be found in Annex A; the diameter limit is removed; no requirements are given; editorial changes have been introduced.iv ISO 2015 All rights reservedBS EN ISO 3503:2015Plastics piping systems Mechanical joints between fittings and pressure pipes Test method
27、 for leaktightness under internal pressure of assemblies subjected to bendingWARNING Persons using this document should be familiar with normal laboratory practice, if applicable. The use of this International Standard may involve hazardous materials, operations, and equipment. This International St
28、andard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this International Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.1 ScopeThis
29、International Standard specifies a method for checking the leaktightness under internal pressure of assembled joints between mechanical fittings and plastic pressure pipes when subjected to bending. It defines the calculation method for the average bending radius and how to perform this bending.Chec
30、king of the leaktightness under internal pressure is carried out in accordance with the method given in ISO 3458.This test method is not applicable to fusion-welded joints.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispen
31、sable 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.ISO 3458, Plastics piping systems Mechanical joints between fittings and pressure pipes Test method for leaktightn
32、ess under internal pressure3 PrincipleChecking of the leaktightness of joints of an assembly, containing one test fitting, to which a bending force is applied throughout its free length (L) under internal pressure.This bending has an average radius calculated from the pipe nominal diameter and press
33、ure.4 Test parameters and requirementsThe test parameters of the standard which refers to this test standard shall be used and the requirements shall be fulfilled. If one or more parameters are not given in the referring International Standard, the ones given in Annex A shall apply.The following tes
34、t parameters should be given by the standard which refers to this test standard:a) test medium;b) test pressure (bar or MPa);c) test duration (h);INTERNATIONAL STANDARD ISO 3503:2015(E) ISO 2015 All rights reserved 1BS EN ISO 3503:2015ISO 3503:2015(E)d) test temperature (C);e) free length (mm);f) be
35、nding radius, R5 Apparatus5.1 A suitable apparatus is given in Figure 1.5.2 Bending gauge (12), having a bearing length, l, equal to three-quarters of the free length between fittings, i.e. equal to 7,5 times the pipe nominal outside diameter.This bearing length, l, shall have a bending radius equal
36、 to that specified for pipe under test.5.3 Pressurizing system, in accordance with the specification given in ISO 3458.2 ISO 2015 All rights reservedBS EN ISO 3503:2015ISO 3503:2015(E)Key1 test panel 7 pipe2 connection pipe to hydraulic pump 8 end fitting (the end fitting is only used for closing th
37、e test specimen)3 valve 9 stop nipple4 pressure gauge 10 air release valve5 connection nipple 11 stop block6 test fitting 12 bending gaugeFigure 1 Diagram of typical apparatus ISO 2015 All rights reserved 3BS EN ISO 3503:2015ISO 3503:2015(E)6 Test piecesThe test specimen shall consist of a plastic p
38、ipe of dimensions conforming to the fittings to be tested.The fittings and pipes shall not be tested until 24 h after their production. For practical reasons, the manufacturer may wait a shorter time before testing. In case of dispute, a duration of 24 h shall apply.7 ProcedureThe test shall be carr
39、ied out at a temperature (2 C) as specified in the referring International Standard.Set up the test specimens on the bending gauge in such a way that bending stresses are supported by fittings, pipe is applied to the bending-gauges entire length, so that, at either end of it, two free pipe sections
40、equal in length are available, about 1/8 of the free length each, and pressure is applied to the mounting according to the specifications of ISO 3458.8 Test reportThe test report shall include the following information:a) a reference to this International Standard (i.e. ISO 3503:2015) and to the ref
41、erring International Standard;b) the nominal pressure class or S series of the components (e.g. fitting(s), pipe) comprising the joint(s) under test;c) all details necessary for identification of the test pieces, including the nominal size of the pipes and fittings used to produce the test pieces, t
42、he type of material and the manufacturers code;d) the bending radius;e) the test medium;f) the test period;g) the test pressure;h) the test temperature;i) information on the leaktightness of the joint including the pressure at which a leakage occurred (if any);j) any factors which may have affected
43、the results, such as any incidents or any operating details not specified in this standard;k) the date of test.4 ISO 2015 All rights reservedBS EN ISO 3503:2015ISO 3503:2015(E)Annex A (normative) Test parametersThe test parameters in Table A.1 shall be used, if applicable.Table A.1 Test ParametersTe
44、st mediumTest duration hTest temperature CTest pressure MPaWater 1 23Three times the nominal design pressure of the lowest rated component in the assemblyAfter assembly, the pipe shall be such that the free length between fittings is equal to 10 times its nominal diameter. The test shall be carried
45、out with a bending radius, R, of 15 times the pipe nominal outside diameter, if its nominal pressure is equal to 1 MPa (10 bar) or less, and 20 times the pipe nominal outside diameter, with nominal pressure more than 1 MPa (10 bar). ISO 2015 All rights reserved 5BS EN ISO 3503:2015ISO 3503:2015(E) I
46、SO 2015 All rights reservedICS 23.040.60Price based on 5 pagesBS EN ISO 3503:2015This 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 Stan
47、dards 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 experienc
48、e 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 of all sizes and across all sectors choose standards to help them achieve their goals.Informati
49、on on standardsWe can provide you with the knowledge that your organization needs to succeed. Find out more about British Standards by visiting our website at or contacting our Customer Services team or Knowledge Centre.Buying standardsYou can buy and download PDF versions of BSI publications, including British and adopted European and international standards, through our website at where hard copies can also be purchased. If you need international and foreign standar
