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1、BRITISH STANDARD BS EN ISO 13846:2001 BS 2782-11: Method 1111F:2001 Plastics piping systems End-load-bearing and non-end-load bearing assemblies and joints for thermoplastics pressure piping Test method for long-term leaktightness under internal water pressure The European Standard EN ISO 13846:2000
2、 has the status of a British Standard ICS 23.040.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 08:40:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 13846:2001 This British Standard, having been prepared under
3、 the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 May 2001 BSI 05-2001 ISBN 0 580 37400 9 National foreword This British Standard is the official English language version of EN ISO 13846:2000.
4、It is identical with ISO 13846:2000. The UK participation in its preparation was entrusted by Technical Committee PRI/88, Plastics piping systems and components, to Subcommittee PRI/88/4, Methods of test for plastics piping systems and components, which has the responsibility to: A list of organizat
5、ions represented on this subcommittee can be obtained on request to its secretary. It is incorporated into BS 2782-11, Methods of testing plastics Part 11: Thermoplastics pipes, fittings and valves, as Method 1111F:2001, for association with related test methods for plastics materials and plastics p
6、iping components. No existing British Standard is superseded by this British Standard. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publication
7、s. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. Warning This British
8、 Standard, which is identical with EN ISO 13846:2000, does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc. Act 1974 and subsequent legislation. Attention should be paid to any appropriate safety precautions and the method should be
9、operated only by trained personnel. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid e
10、nquirers 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
11、document comprises a front cover, an inside front cover, the EN ISO title page, pages 2 to 9 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 sheffield
12、un, na, Sun Nov 19 08:40:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 13846 October 2000 ICS 23.040.60 English version Plastics piping systems - End-load-bearing and non-end-load- bearing assemblies and joints for thermoplastics pressure pipi
13、ng - Test method for long-term leaktightness under internal water pressure (ISO 13846:2000) Systmes de canalisations en plastiques - Assemblages et jonctions avec et sans effet de fond pour canalisations thermoplastiques avec pression - Mthode dessai pour vrifier ltanchit long terme sous une pressio
14、n deau interne (ISO 13846:2000) Kunststoff-Rohrleitungssysteme - Zugfeste und nicht- zugfeste Rohrverbindungen und Bauteilkombinationen fr thermoplastische Druckrohrleitungen - Prfverfahren fr die Langzeitdichtheit unter Wasserinnendruck (ISO 13846:2000) This European Standard was approved by CEN on
15、 24 April 1999. 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
16、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 Managem
17、ent 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, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EU
18、ROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2000 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 13846:2000 E Licensed
19、 Copy: sheffieldun sheffieldun, na, Sun Nov 19 08:40:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN ISO 13846:2000 Contents Page Foreword 3 1 Scope. 4 2 Principle. 4 3 Apparatus 4 3.1 Ambient temperatures 4 3.2 Elevated temperatures. 4 3.3 Pressure control device. 4 3.4 Support 5 3.5 Compen
20、sating device 5 4 Test piece 6 4.1 Preparation 6 4.2 Number 7 5 Procedure 7 5.1 Preparation 7 5.2 Conditioning. 7 5.3 Pressure control. 7 5.4 Examination of the test assembly 7 5.5 Examination at the mid-point and at the end of the test period 8 5.6 Rupture 8 6 Test report. 8 Bibliography. 9 License
21、d Copy: sheffieldun sheffieldun, na, Sun Nov 19 08:40:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN ISO 13846:2000 Foreword The text of EN ISO 13846:2000 has been prepared by Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems“, the secretariat of which is held by N
22、NI, 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 standard, either by publication of an identical text or by endorsement, at the latest by April 2001, and conflict
23、ing national standards shall be withdrawn at the latest by April 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
24、, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. The material-dependent parameters and/or performance requirements are incorporated in the System Standard(s) concerned. This standard is one of a series of standards on te
25、st methods which support System Standards for plastics piping systems and ducting systems. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 08:40:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN ISO 13846:2000 1 Scope This standard specifies a test method for the long-term leaktightness
26、 of end-load-bearing and non-end- load-bearing mechanically jointed assemblies and joints between fittings, ancillaries, valves and thermoplastics pressure pipes, including integral pipe joints. This method is applicable to joints where similar or different materials are connected, where sealing mec
27、hanisms include elastomeric sealing rings or adhesives. This method is applicable in addition to the hydrostatic pressure tests for materials and components. 2 Principle The test simulates expansion of the joint area due to creep. This is related to the permissible working conditions for 50 years an
28、d based on the properties of the components assembled. The leaktightness of the joint(s) is tested as an assembly comprising either: a) at least one fitting joined to pipes; or b) an ancillary component or a valve joined to pipes; or c) a pipe-to-pipe joint. The test is carried out for at least 1000
29、 h at ambient temperature and at the maximum allowed working temperature for the piping system for which the assembly or joint is intended to be used. The test piece and its joint(s) are subjected to a specified internal hydrostatic water pressure at a specified temperature for the period of time (1
30、000 h or more) specified in the referring standard. Additional reinforcement of the joint area is not permitted for this test. NOTE It is assumed that the following test parameters are set by the standard making reference to this standard: a) the minimum test period under pressure, i.e. 1000 h or mo
31、re (see clause 2 and 5.4); b) the free length, L, of the pipe sections under test (see 4.1); c) the number of test pieces (see 4.2); d) the test temperature (e.g. ambient or maximum allowed working temperature) (see 5.2); e) the test pressure (see 5.3). 3 Apparatus 3.1 Ambient temperatures For tests
32、 at ambient temperatures (see 5.2), a test room or water bath, capable of being maintained at a temperature to within 2C. 3.2 Elevated temperatures For tests at elevated temperatures, an air chamber or water bath, capable of being maintained at the specified test temperature to within ( ) 3 1 + C. 3
33、.3 Pressure control device A pressure control device connected to the test assembly and capable of applying a constant hydrostatic pressure to within () 2 1 + %. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 08:40:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN ISO 13846:2000 3.4 Su
34、pport Support for end-load-bearing assemblies and joints such that the assemblies and joints shall be subjected to the axial forces generated during the test and such that the support shall not provide any axial restraint. (For bibliography see EN 7151.) An example of solvent cement type test assemb
35、ly is shown in figure 1. 3.5 Compensating device A compensating device for non-end-load-bearing assemblies and joints, capable of sustaining the axial forces generated by the internal water pressure, whilst maintaining the axial alignment of the joint assembly. (For bibliography see EN 7142.) Connec
36、ting rods or external frames between non-end-load bearing sealing devices to keep them in place as necessary to prevent any separation. Examples of test assemblies are shown in figures 2 and 3. NOTE Precautions can be necessary to maintain the alignment of the joint assemblies, particularly for remo
37、val of the test assemblies from the test bath. Figure 1 ? Example of solvent cement type test assembly Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 08:40:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 EN ISO 13846:2000 Figure 2 ? Example of elastomeric sealing ring type test assembly
38、 Figure 3 ? Example of integral joint type test assembly 4 Test piece 4.1 Preparation The test piece shall comprise an assembly containing at least one pipe sample joined to a socket of a fitting or to a socketed pipe or joined with an assembled finished product (such as a valve or union). Additiona
39、l components may be added to the test assembly as required. Components of the same nominal pressure, PN, or the same pipe series S, shall be used for the assembly. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 08:40:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 7 EN ISO 13846:2000 The
40、relevant dimensions of the joint components shall be measured and recorded, i.e. the mean outside diameter and out-of-roundness of any spigot or pipe joint area, the mean inside diameter and out-of-roundness of any socket and the relevant dimensions of any intermediate component (see note at the end
41、 of this clause). The minimum length of the pipe section shall be such that its free length, L, between the assembly under test and the joint or the end closure (plug or cap) shall be as specified in the referring standard. NOTE If the free length is not specified in the referring standard, it shoul
42、d be not less than the nominal outside diameter of the pipe, with a minimum of 150 mm. All components shall conform to the appropriate part of the applicable System Standard. In addition the elastomeric sealing rings shall conform to the manufacturers specifications. The assembly shall be carried ou
43、t in accordance with the manufacturers instructions. For non-end-load-bearing joints connecting rods or external frames may be used as necessary to prevent any separation (see 3.5). NOTE For this test components should be selected which are as near as possible to the extremes of their respective tol
44、erance bands which provide the most severe test conditions, e.g. for elastomeric sealing ring joints the socket and the diameter of the ring groove housing should be at or as near as possible to their maximum value, the spigot of the pipe or fitting should be at or as near as possible to the minimum
45、 value, and the sealing ring should be at or as near as possible to the minimum cross-section specified by the manufacturer. 4.2 Number The number of test piece components and/or joints tested shall be as specified in the referring standard. 5 Procedure WARNING All necessary precautions should be ta
46、ken when testing using components under pressure. 5.1 Preparation Fill the test assembly with water. Set up the test assembly, without any deformation, in the apparatus appropriate to the type of joint and adjust the pipe section(s) in line with the axis (axes) of the socket(s). 5.2 Conditioning Con
47、dition the test assembly in the test room or conditioning chamber for at least 3 h for test temperatures more than 25 C or for at least 20 min for test temperatures equal to or less than 25 C. If the test temperature is specified as “ambient temperature“, carry out the conditioning at any temperatur
48、e between 15 C and 25 C. During subsequent testing in accordance with 5.3 to 5.5 inclusive, maintain the test temperature constant to within 2 C and within the range of 15 C to 25 C. 5.3 Pressure control Connect the test assembly to the pressure control device. Evacuate all air from the test assembl
49、y and within the period 30 s to 1 min apply the test pressure as specified in the referring standard. Record the time when the test pressure is achieved as the commencement of the test period. Inspect the assembly for any signs of leakage and report the result. 5.4 Examination of the test assembly When required (see 5.5), inspect the test assembly, as appropriate, as follows. a) If the test is carried out in air, thoroughly dry the whole outside surface of the test piece and examine it for leakage.