1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Thermoplastics piping systems for non-pressure applications - Test method for resistance to elevated temperature cycling (ISO 13257:2010)BS EN ISO 13257:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 13257
2、 October 2017 ICS 23.040.20; 91.140.80 Supersedes EN 1055:1996English Version Thermoplastics piping systems for non-pressure applications - Test method for resistance to elevated temperature cycling (ISO 13257:2010) Systmes de canalisations thermoplastiques pour applications sans pression - Mthode d
3、essai de rsistance des cycles de temprature leve (ISO 13257:2010) Rohrleitungssysteme aus Thermoplasten fr drucklose Anwendungen - Prfverfahren fr die Temperaturbeanspruchbarkeit (ISO 13257:2010) This European Standard was approved by CEN on 19 September 2017. CEN members are bound to comply with th
4、e 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 CEN-CENELEC Managemen
5、t 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 CEN-CENELEC Management Centre has the same status
6、as the official versions. CEN members are the national standards bodies of 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, N
7、etherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017
8、 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 13257:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 13257:2017. It is identical to ISO 13257:2010. It supersedes BS EN 1055:1996 and BS ISO 1325
9、7:2010, which are withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/88, Plastics piping systems.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary pr
10、ovisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 96905 8ICS 91.140.80; 23.040.20Compliance with a British Standard cannot confer immunity from legal obligations. This British Standa
11、rd was published under the authority of the Standards Policy and Strategy Committee on 31 July 2010.Amendments/corrigenda issued since publicationDate Text affected31 January 2018 This corrigendum renumbers BS ISO 13257:2010 as BS EN ISO 13257:2017BRITISH STANDARDBS EN ISO 13257:2017EUROPEAN STANDAR
12、D NORME EUROPENNE EUROPISCHE NORM EN ISO 13257 October 2017 ICS 23.040.20; 91.140.80 Supersedes EN 1055:1996English Version Thermoplastics piping systems for non-pressure applications - Test method for resistance to elevated temperature cycling (ISO 13257:2010) Systmes de canalisations thermoplastiq
13、ues pour applications sans pression - Mthode dessai de rsistance des cycles de temprature leve (ISO 13257:2010) Rohrleitungssysteme aus Thermoplasten fr drucklose Anwendungen - Prfverfahren fr die Temperaturbeanspruchbarkeit (ISO 13257:2010) This European Standard was approved by CEN on 19 September
14、 2017. 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 obtain
15、ed 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 under the responsibility of a CEN member into its own language and notified to the CEN-
16、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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland,
17、Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management
18、Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 13257:2017 EBS EN ISO 13257:2017EN ISO 13257:2017 (E) 3 European Foreword The text of ISO 13257:2010 has been prepared by Technical
19、Committee ISO/TC 138 “Plastics pipes, fittings and valves for the transport of fluids” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 13257:2017 by Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems” the secretariat of which is
20、held by NEN. 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 2018 and conflicting national standards shall be withdrawn at the latest by October 2020. Attention is drawn to the possibility t
21、hat some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1055:1996. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the follow
22、ing countries 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, No
23、rway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 13257:2010 has been approved by CEN as a EN ISO 13257:2017 without any modification. BS EN ISO 13257:2017ISO 13257:2010(E) ISO 2010 All rights re
24、served 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 through ISO technical committees. Each member body interested in a subject for
25、 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 collaborates closely with the International Electrotechnical Commission (IEC) on a
26、ll 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 Standards. Draft International Standards adopted by the technical committees are
27、 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 this document may be the subject of patent rights. ISO shall not be held re
28、sponsible for identifying any or all such patent rights. ISO 13257 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 1, Plastics pipes and fittings for soil, waste and drainage (including land drainage). BS EN ISO 13257:2
29、017INTERNATIONAL STANDARD ISO 13257:2010(E) ISO 2010 All rights reserved 1Thermoplastics piping systems for non-pressure applications Test method for resistance to elevated temperature cycling 1 Scope This International Standard specifies a method for testing the resistance of thermoplastics piping
30、systems for soil and waste discharge inside buildings, application area “B”, or buried in the ground within the building structure, application areas “BD” or “UD”, to 1 500 cycles of elevated temperature cycling. NOTE This method assesses leaktightness and resistance to sagging. 2 Normative referenc
31、es 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/TS 7024, Plastics piping systems for soil
32、and waste discharge (low and high temperature) inside buildings Thermoplastics Recommended practice for installation 3 Terms and definitions, and symbols 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 nominal outside diameter dnspecified
33、 diameter assigned to a nominal size (DN/OD or DN/ID) NOTE It is expressed in millimetres. 3.1.2 expansion gap E distance between the bottom of a socket and the spigot of the inserted component allowing expansion of the system NOTE Adapted from ISO/TS 7024:2005, definition 3.2.4. 3.1.3 free length b
34、etween fixed points LFmaximum permitted span between support centres in an above-ground installation BS EN ISO 13257:2017ISO 13257:2010(E) 2 ISO 2010 All rights reserved3.2 Symbols For the purposes of this document, the symbols given in ISO/TS 7024 apply. 4 Principle A test assembly of pipes and fit
35、tings is subjected to a given pattern of thermal cycling by using hot and cold water alternately for a given number of cycles during which the leaktightness of joints is verified by inspection and sagging of the pipe is checked against a given limit. It is assumed that the following test parameter i
36、s set by the referring standard: the minimum value for the expansion gap, E, for a pipe or socket joint (see Clause 6). 5 Apparatus 5.1 Thermometer or other temperature measuring device, capable of checking conformity of the assembly inlet water temperature to the specified temperature limits (see 5
37、.2, 5.3 and Clause 6). It is recommended that the device be capable of recording and controlling the relevant temperature and time cycles (see Clause 7). 5.2 Cold water source, capable of supplying, every 4 min, the following quantities of water at (15 5) C (see 7.3): a) for Programme A, (30 0,5) l
38、in (60 2) s; b) for Programme B, (15 0,5) l in (60 2) s. 5.3 Hot water source, capable of supplying, every 4 min, the following quantities of water at (93 2) C (see 7.3): a) for Programme A, (30 0,5) l in (60 2) s; b) for Programme B, (15 0,5) l in (60 2) s. 5.4 Plugs or other closures, to seal, tem
39、porarily, the water outlet (see 7.1 and 7.4). 5.5 Device, capable of measuring pipe sagging as shown in Figure 1, 2 and 3, as applicable, to an accuracy of 0,1 mm. 5.6 Supporting brackets, as appropriate, comprising anchor brackets (fixed points) capable of restraining piping components and guide br
40、ackets capable of supporting piping components without inhibiting longitudinal movement (see Clause 6 and Figures 1, 2 and 3). 6 Test assembly The test assembly shall comprise a vertical stack of pipes with fittings and two near-horizontal pipe assemblies with fittings. The assembly shall depend on
41、the purposes for which the components are intended as follows: a) for components intended for use in systems inside buildings (application area “B” only); b) as a test assembly supplementary to a) for components intended for use in systems buried in the ground within the building structure (applicat
42、ion areas “BD” and “UD”). BS EN ISO 13257:2017ISO 13257:2010(E) ISO 2010 All rights reserved 3Typical test assemblies are shown in Figure 1 (application area “B” only), Figure 2 (application areas “BD” and “UD”) and Figure 3 (application area “B” for nominal diameters, dn, smaller than 40 mm), where
43、 the positions and the types of the joint or fitting are indicative only. For application areas “BD” and “UD”, the components shall be assembled such that that the weld lines are in the water flow. The position and the type of joint(s) to be used shall be as appropriate for the system under test (e.
44、g. cemented joint, welded joints, lip seal joints). The assembly of the joint(s) shall be carried out in accordance with the manufacturers instructions and any applicable recommended practice for installation, e.g. to avoid undue stress in the test assembly. The symbols used to specify or report on
45、a test assembly shall conform to ISO/TS 7024. Installation of the test assembly shall be carried out on a firm wall or frame, using both fixed and guide brackets, with no other support of the test assembly. Anchor brackets shall be located directly on, below or behind the sockets of each pipe length
46、, except for c) the first pipe in the near-horizontal line from the inlet, where a possible sagging is to be measured (see Figure 1, Figure 2 or Figure 3, as applicable), and d) the pipe with nominal outside diameter, dn, smaller than 40 mm, where the distance between the brackets shall always be 40
47、0 mm. Guide brackets for near-horizontal assemblies shall be placed not less than 10dnapart. Room for expansion of pipes shall be provided for all spigot ends of pipes, but not for the spigot ends of fittings, and shall be not less than the minimum value for the gap, E, as specified by the referring
48、 standard. The entry of hot water into the test assembly shall be direct, i.e. there shall be no heat-absorbing intermediate pieces. 7 Procedure 7.1 Fill the test assembly with water, at a temperature not exceeding 20 C, to a head of 500 mm above the highest point of the centreline of the upper late
49、ral pipe. Leave for a minimum period of 15 min and then visually check for, and record, any leaks. 7.2 If any leaks are observed, check and rectify the joint assembly (see Clause 6) and repeat the watertightness test given in 7.1. If any further leaks are observed, stop the test and report the observations in accordance with Clause 8. If no further leaks are observed, proceed in accordance with 7.3 to 7.5. BS EN ISO 13257:2017ISO 13257:2010(E) 4 ISO 2010 All rights reservedDimensions in millimetres Key
