BS ISO 11414-2009 Plastics pipes and fittings - Preparation of polyethylene (PE) pipe pipe or pipe fitting test piece assemblies by butt fusion《塑料管和配件 通过熔接制备聚乙烯(PE)管 管或管 配件试样组装件》.pdf

1、BS ISO11414:2009ICS 23.040.60NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPlastics pipes andfittings Preparationof polyethylene (PE)pipe/pipe or pipe/fitting test pieceassemblies by buttfusionThis British Standardwas published under theauthority of the Standa

2、rdsPolicy and StrategyCommittee on 28 February2009 BSI 2009ISBN 978 0 580 60187 3Amendments/corrigenda issued since publicationDate CommentsBS ISO 11414:2009National forewordThis British Standard is the UK implementation of ISO 11414:2009. Itsupersedes BS 2782 11 MET1150 :1998 which is withdrawn.The

3、 UK participation in its preparation was entrusted to TechnicalCommittee PRI/88/4, Test methods.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsib

4、le for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.- BBS ISO 11414:2009Reference numberISO 11414:2009(E)ISO 2009INTERNATIONAL STANDARD ISO11414Second edition2009-02-01Plastics pipes and fittings Preparation of polyethylene (PE) pipe/pipe or

5、 pipe/fitting test piece assemblies by butt fusion Tubes et raccords en matires plastiques Prparation dprouvettes par assemblage tube/tube ou tube/raccord en polythylne (PE) par soudage bout bout BS ISO 11414:2009ISO 11414:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accor

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8、ing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2009 All rights reserved. Unless otherwise

9、 specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright off

10、ice Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2009 All rights reservedBS ISO 11414:2009ISO 11414:2009(E) ISO 2009 All rights reserved iiiForeword ISO (the International Organization for Stand

11、ardization) 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 which a technical committee has been established has the right

12、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 all matters of electrotechnical standardization. International St

13、andards 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 circulated to the member bodies for voting. Publication as an I

14、nternational 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 responsible for identifying any or all such patent rights. ISO 114

15、14 was prepared by Technical Committee ISO/TC 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. This second edition cancels and re

16、places the first edition (ISO 11414:1996), which has been technically revised. BS ISO 11414:2009BS ISO 11414:2009INTERNATIONAL STANDARD ISO 11414:2009(E) ISO 2009 All rights reserved 1Plastics pipes and fittings Preparation of polyethylene (PE) pipe/pipe or pipe/fitting test piece assemblies by butt

17、 fusion 1 Scope This International Standard specifies a method for preparing butt-fusion-jointed test piece assemblies between polyethylene (PE) pipes and spigot-ended fittings. This International Standard specifies the assembly parameters involved, such as the ambient temperature, joint geometry an

18、d fusion parameters, taking into account the service condition limits specified in the relevant product standards, as well as the type of pipe to be used. This International Standard is intended to enable the effect of site assembly variables on joint performance to be determined. The fusion-jointin

19、g procedures and parameters used in the field can differ from those in this International Standard, depending on the manufacturers written procedures and/or local standards. NOTE The assembly and fusion-jointing technique specified in this International Standard is applicable whatever the polyethyle

20、ne resin employed, provided it is used in accordance with ISO/TR 116471. Deviations from the fusion cycle specified, in order to demonstrate joint performance, can be considered in accordance with the notes in Annexes A and B. 2 Normative references The following referenced documents are indispensab

21、le 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 4427-2, Plastics piping systems Polyethylene (PE) pipes and fittings for water supply Part 2: P

22、ipes ISO 4427-3, Plastics piping systems Polyethylene (PE) pipes and fittings for water supply Part 3: Fittings ISO 4437, Buried polyethylene (PE) pipes for the supply of gaseous fuels Metric series Specifications ISO 8085-2, Polyethylene fittings for use with polyethylene pipes for the supply of ga

23、seous fuels Metric series Specifications Part 2: Spigot fittings for butt fusion, for socket fusion using heated tools and for use with electrofusion fittings ISO 12176-1, Plastics pipes and fittings Equipment for fusion jointing polyethylene systems Part 1: Butt fusion 3 Symbols 3.1 Symbols used in

24、 more than one phase of the fusion-jointing cycle ennominal pipe wall thickness dnnominal external diameter of the pipe p pressure applied to the butt-fusion joint interface BS ISO 11414:2009ISO 11414:2009(E) 2 ISO 2009 All rights reservedt duration of each phase in the fusion cycle Tnomnominal temp

25、erature, (23 2) C Tmaxmaximum permissible ambient temperature Tminminimum permissible ambient temperature 3.2 Joint geometry a misalignment between the pipes or fittings to be butt-fused, expressed in terms of the difference, in millimetres, between the external diameters; w maximum clearance betwee

26、n the fusion faces, expressed in terms of the gap, in millimetres, between the prepared faces. 3.3 Ambient temperature Taambient temperature at which the joint is made NOTE The ambient temperature may vary from the minimum temperature, Tmin, to the maximum temperature, Tmax, defined either in the sy

27、stem standards or by agreement between the manufacturer and purchaser. 3.4 Butt-fusion cycle parameters 3.4.1 General Theater-plate temperature, measured in the zone of the heater-plate surface in contact with the pipe or spigot ends to be butt-fused 3.4.2 Phase 1: Heating p1interface pressure, in m

28、egapascals1), during the heating phase, i.e. the pressure applied in the contact zone B1initial bead width, in millimetres, taken as the bead width at the end of the heating phase t1heating time, taken as the time necessary to obtain a bead of width B1in the joint region during the heating phase 3.4

29、.3 Phase 2: Heat soak p2pressure, in megapascals, between the heater plate and the pipe or spigot ends during the heat soak phase t2duration, in seconds, of internal heating during the heat soak phase 3.4.4 Phase 3: Withdrawal of heater plate t3time, in seconds, between the moment when the heater pl

30、ate is removed from the pipe and/or spigot ends and the moment when the pipe and/or spigot ends are placed in contact with each other 1) 1 MPa = 1 N/mm2BS ISO 11414:2009ISO 11414:2009(E) ISO 2009 All rights reserved 33.4.5 Phase 4: Pressure increase t4time, in seconds, required to establish the butt

31、-fusion pressure 3.4.6 Phase 5: Butt fusion p5pressure, in megapascals, applied to the contact zone during the butt-fusion phase t5time, in minutes, during which the assembly remains under the butt-fusion pressure in the machine 3.4.7 Phase 6: Cooling t6cooling time, in minutes, during which the but

32、t-fused assembly is not subjected to any rough handling; this cooling can take place outside the machine B2bead width, in millimetres, obtained at the end of the cooling phase 4 Pipes used for test assemblies The pipes used for test assemblies shall be taken from straight lengths. 5 Conditioning Con

33、dition the pipes used for test assemblies at temperature Ta(refer to Table B.1) for a period of time according to Table 1. Table 1 Conditioning periods Thickness, enmm Minimum conditioning period h en 8 8 u en 16 16 u en 32 32 u en3 6 10 16 6 Apparatus The butt-fusion machine shall conform to ISO 12

34、176-1, which means that a fusion-pressure controller is present enabling the pressure to be kept constant during the whole of phases 1, 2 and 5 of the fusion cycle. 7 Jointing procedure Using straight pipes and fittings conforming to ISO 4427-2, ISO 4427-3, ISO 4437 or ISO 8085-2, as applicable, joi

35、n the components as follows, deviations from the procedure being permitted to demonstrate improvements in joint performance (appearance or mechanical properties). a) Fix the pipes and/or fittings in the butt-fusion machine in such a manner as to obtain a misalignment, a, of at the most, 0,5 mm when

36、dn 200 mm or at the most 0,1enor 1 mm, whichever is the greater, when dnW 200 mm. BS ISO 11414:2009ISO 11414:2009(E) 4 ISO 2009 All rights reservedb) Prepare and plane the butt-fusion faces by means of a planing machine to obtain a maximum clearance, w, of 0,3 mm when dn 200 mm or 0,5 mm when dnW 20

37、0 mm. c) Perform the butt-fusion using the parameters specified in Annex A, repeating the procedure on fresh test assemblies while varying the parameters within the limits given in Annex B. d) Proceed to the tests as given in the relevant product standards. BS ISO 11414:2009ISO 11414:2009(E) ISO 200

38、9 All rights reserved 5Annex A (normative) Butt-fusion cycle and parameters Figure A.1 illustrates the butt-fusion cycle and Tables A.1 and A.2 give reference values for the parameters in each phase. Key t time Figure A.1 Butt-fusion cycle Table A.1 Butt-fusion cycle and parameters Parameters Values

39、 Units Heater-plate temperature, T 200 to 230 C Pressure, p1 a0,15 0,02 MPa Phase 1 Time, t1Bead width, B1 bMeasured as the time until B1is reached See Table A.2 s mm Pressure, p2au 0,03 MPa Phase 2 Time, t210en, see Table A.2 s Phase 3 Time, t3Maximum value, see Table A.2 s Phase 4 Time, t4Maximum

40、value, see Table A.2 s Pressure, p5 a0,15 0,02 MPa Phase 5 Time, t5Minimum value, see Table A.2 min Phase 6 Time, t6= t5min aThis pressure is the interface pressure and is related to dn, enand the butt-fusion equipment used. b Minimum value obtained around the complete circumference of the pipe.BS I

41、SO 11414:2009ISO 11414:2009(E) 6 ISO 2009 All rights reservedTable A.2 Wall thickness dependent butt-fusion parameters aWall thickness, enmm B1mm t2s t3s t4s t5min u 4,5 0,5 45 5 5 6 4,5 enu 7 1,0 45 to 70 5 to 6 5 to 6 6 to 10 7 enu 12 1,5 70 to 120 6 to 8 6 to 8 10 to 16 12 enu 19 2,0 120 to 190 8

42、 to 10 8 to 11 16 to 24 19 enu 26 2,5 190 to 260 10 to 12 11 to 14 24 to 32 26 enu 37 3,0 260 to 370 12 to 16 14 to 19 32 to 45 37 enu 50 3,5 370 to 500 16 to 20 19 to 25 45 to 60 50 enu 70 4,0 500 to 700 20 to 25 25 to 35 60 to 80 aIf other parameters are considered, they have to be agreed between

43、the pipe/fitting manufacturer and the end-user. BS ISO 11414:2009ISO 11414:2009(E) ISO 2009 All rights reserved 7Annex B (normative) Limits on values of butt-fusion parameters Table B.1 gives the limits placed on the values of the parameters used in evaluating the jointing procedure. Table B.1 Limit

44、s on values of butt-fusion parametersaAmbient temperature bHeater-plate temperature, T Butt-fusion pressure, p Set of conditions Condition Symbol Value C C MPa 1 Normal Tnom23 2 215 5 0,15 0,02 2 Minimum Tmin5 2 205 5 0,13 0,02 3 Maximum Tmax40 2 230 5 0,17 0,02 aIf other parameters are considered,

45、they have to be agreed between the pipe/fitting manufacturer and the end-user. bOther values may be used if specified in the appropriate system standard. BS ISO 11414:2009ISO 11414:2009(E) 8 ISO 2009 All rights reservedBibliography 1 ISO/TR 11647, Fusion compatibility of polyethylene (PE) pipes and

46、fittings 2)2) Withdrawn. BS ISO 11414:2009BS ISO 11414:2009ISO 11414:2009(E) ICS 23.040.60 Price based on 8 pages ISO 2009 All rights reserved BS ISO 11414:2009This page has been intentionally left blank BS ISO11414:2009BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996

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48、nt or revision. Users of BritishStandards should make sure that they possess the latest amendments oreditions.It is the constant aim of BSI to improve the quality of our products and services.We would be grateful if anyone finding an inaccuracy or ambiguity while usingthis British Standard would inform the Secretary of the technical committeeresponsible, the identity of which can be found on the inside front cover. Tel:+44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensuresthat subscribers au