1、BS EN ISO22391-2:2009ICS 23.040.20; 91.140.60; 93.025NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPlastics piping systemsfor hot and coldwater installations Polyethylene of raisedtemperature resistance(PE-RT)Part 2: Pipes (ISO 22391-2:2009)This British Standa
2、rdwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 January2010. BSI 2010ISBN 978 0 580 60046 3Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 22391-2:2009National forewordThis British Standard is the UK implementation of EN ISO22391-2:2009.The
3、UK participation in its preparation was entrusted to TechnicalCommittee PRI/88/2, Plastics piping for pressure applications.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 c
4、ontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 22391-2 December 2009 ICS 23.040.20; 91.140.60; 93.025 English Version Plastics piping systems for hot a
5、nd cold water installations - Polyethylene of raised temperature resistance (PE-RT) - Part 2: Pipes (ISO 22391-2:2009) Systmes de canalisations en plastique pour les installations deau chaude et froide - Polythylne de meilleure rsistance la temprature (PE-RT) - Partie 2: Tubes (ISO 22391-2:2009) Kun
6、ststoff-Rohrleitungssysteme fr die Warm- und Kaltwasserinstallation - Polyethylen erhhter Temperaturbestndigkeit (PE-RT) - Teil 2: Rohre (ISO 22391-2:2009) This European Standard was approved by CEN on 4 November 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which s
7、tipulate 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 Management Centre or to any CEN member. This European Stand
8、ard 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 Management Centre has the same status as the official versions. CEN members are the national sta
9、ndards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United K
10、ingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 22391-2:2009
11、: EBS EN ISO 22391-2:2009EN ISO 22391-2:2009 (E) 3 Foreword This document (EN ISO 22391-2:2009) 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 duct
12、ing systems” the secretariat of which is 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 June 2010, and conflicting national standards shall be withdrawn at the latest by June 2010. A
13、ttention is drawn to the possibility that some of the elements of 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations
14、 of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, S
15、lovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 22391-2:2009 has been approved by CEN as a EN ISO 22391-2:2009 without any modification. BS EN ISO 22391-2:2009ISO 22391-2:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introd
16、uction.v 1 Scope1 2 Normative references1 3 Terms, definitions, symbols and abbreviated terms .2 4 Material .2 4.1 Pipe material 2 4.2 Evaluation of LPLvalues .2 4.3 Influence on water intended for human consumption 5 5 General characteristics.5 5.1 Appearance 5 5.2 Opacity5 6 Geometrical characteri
17、stics .5 6.1 General .5 6.2 General dimensions of pipe .6 7 Mechanical characteristics.9 8 Physical and chemical characteristics10 9 System performance requirements .10 10 Marking.10 10.1 General requirements .10 10.2 Minimum required marking 11 Annex A (informative) Derivation of the maximum calcul
18、ated pipe value Scalc, max.12 Bibliography14 BS EN ISO 22391-2:2009ISO 22391-2:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Stan
19、dards 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 on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also t
20、ake part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all 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
21、is to prepare International Standards. Draft International Standards adopted by the technical committees are 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 possibil
22、ity 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 22391-2 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommitt
23、ee SC 2, Plastics pipes and fittings for water supplies. This second edition cancels and replaces the first edition (ISO 22391-2:2007), which is extended from only dealing with PE-RT material (referred to as Type I) to cover PE-RT materials Type I and Type II. ISO 22391 consists of the following par
24、ts1), under the general title Plastics piping systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT): Part 1: General Part 2: Pipes Part 3: Fittings Part 5: Fitness for purpose of the system 1) This System Standard does not incorporate a Part 4: Ancillary
25、equipment or a Part 6: Guidance for installation. For ancillary equipment, separate standards can apply. Guidance for installation of plastics piping systems made from different materials, intended to be used for hot and cold water installations, is covered by ENV 12108. BS EN ISO 22391-2:2009ISO 22
26、391-2:2009(E) ISO 2009 All rights reserved vIntroduction The System Standard, of which this is Part 2, specifies the requirements for a piping system and its components when made from polyethylene of raised temperature resistance (PE-RT). The piping system is intended to be used for hot and cold wat
27、er installations. In respect of potential adverse effects on the quality of water intended for human consumption caused by the products covered by ISO 22391, the following are relevant. a) This part of ISO 22391 provides no information as to whether the products can be used without restriction. b) E
28、xisting national regulations concerning the use and/or characteristics of the products remain in force. This part of ISO 22391 specifies the characteristics of pipes. At the date of publication of this part of ISO 22391, System Standards Series for piping systems of other plastics materials used for
29、 the same application are the following: ISO 15874 (all parts), Plastics piping systems for hot and cold water installations Polypropylene (PP) ISO 15875 (all parts), Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X) ISO 15876 (all parts), Plastics piping s
30、ystems for hot and cold water installations Polybutylene (PB) ISO 15877 (all parts), Plastics piping systems for hot and cold water installations Chlorinated poly(vinyl chloride) (PVC-C) BS EN ISO 22391-2:2009BS EN ISO 22391-2:2009INTERNATIONAL STANDARD ISO 22391-2:2009(E) ISO 2009 All rights reserv
31、ed 1Plastics piping systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT) Part 2: Pipes 1 Scope This part of ISO 22391 specifies the characteristics of pipe made of polyethylene of raised temperature resistance (PE-RT), Type I, and polyethylene of raised
32、temperature resistance (PE-RT), Type II, intended to be used for hot and cold water installations within buildings for the conveyance of water, whether or not the water is intended for human consumption (domestic systems) and for heating systems, under the design pressures and temperatures appropria
33、te to the class of application according to ISO 22391-1. This part of ISO 22391 covers a range of service conditions (classes of application), design pressures and pipe dimension classes, and also specifies test parameters and test methods. In conjunction with the other parts of ISO 22391, it is app
34、licable to PE-RT pipes, fittings, their joints, and to joints having components of PE-RT, as well as of other plastics and non-plastics materials, respectively, used for hot and cold water installations. It is applicable to pipes with or without a barrier layer or layers. It is not applicable to val
35、ues of design temperature, maximum design temperature or malfunction temperature in excess of those specified in ISO 22391-1. NOTE It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any r
36、elevant national regulations and installation practices or codes. 2 Normative 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 docum
37、ent (including any amendments) applies. ISO 1133-1, Plastics Determination of the melt volume-flow rate (MVR) and the melt mass-flow rate (MFR) of thermoplastics Part 1: Standard method ISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resist
38、ance to internal pressure Part 1: General method ISO 1167-2, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressure Part 2: Preparation of pipe test pieces ISO 2505, Thermoplastics pipes Longitudinal reversion Test method and p
39、arameters BS EN ISO 22391-2:2009ISO 22391-2:2009(E) 2 ISO 2009 All rights reservedISO 3126, Plastics piping systems Plastics components Determination of dimensions ISO 7686, Plastics pipes and fittings Determination of opacity ISO 9080, Plastics piping and ducting systems Determination of long-term
40、hydrostatic strength of thermoplastics materials in pipe form by extrapolation ISO 13760, Plastics pipes for the conveyance of fluids under pressure Miners rule Calculation method for cumulative damage ISO 22391-1:2009, Plastics piping systems for hot and cold water installations Polyethylene of rai
41、sed temperature resistance (PE-RT) Part 1: General ISO 22391-3, Plastics piping systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT) Part 3: Fittings ISO 22391-5, Plastics piping systems for hot and cold water installations Polyethylene of raised tempera
42、ture resistance (PE-RT) Part 5: Fitness for purpose of the system 3 Terms, definitions, symbols and abbreviated terms For the purposes of this document, the terms, definitions, symbols and abbreviated terms given in ISO 22391-1 apply. 4 Material 4.1 Pipe material The material from which the pipe is
43、made shall be polyethylene of raised temperature resistance (PE-RT). 4.2 Evaluation of LPLvalues The pipe material shall be evaluated in accordance with ISO 9080 or equivalent, with internal pressure tests being carried out in accordance with ISO 1167-1 and ISO 1167-2, in order to determine the LPLv
44、alues. The LPLvalue thus determined shall be at least as high as the corresponding values of the reference curves given in Figure 1 or Figure 2 (taken from ISO 24033:2009) over the complete range of times. NOTE 1 One equivalent way of evaluation is to calculate the LPLvalue for each temperature (for
45、 example 20 C, 60 C and 95 C), individually. NOTE 2 The reference curves for PE-RT Type I in Figure 1 in the temperature range of 10 C to 95 C are derived from Equations (1) and (2). First branch (i.e. the left-hand portion of the lines shown in Figure 1): 58 219,035 lg78 763,07lg 190,481 119,877lgt
46、TT= + + (1) Second branch (i.e. the right-hand portion of the lines shown in Figure 1): 11 150,561723,318 lglg 23,795 4 + tTT = (2) The 110 C values have been determined separately using water inside and air outside the test specimen and have not been derived from Equations (1) and (2). BS EN ISO 22
47、391-2:2009ISO 22391-2:2009(E) ISO 2009 All rights reserved 3NOTE 3 The reference curves for PE-RT Type II in Figure 2 in the temperature range of 10 C to 110 C are derived from Equation (3): 62 600,752 lg 90 635,353lg 219 126,387lgtTT= + + (3) Key X1 time, t, to fracture, expressed in hours X2 time,
48、 t, to fracture, expressed in years Y hoop stress, , expressed in megapascal Figure 1 Expected strength of PE-RT Type I pipes BS EN ISO 22391-2:2009ISO 22391-2:2009(E) 4 ISO 2009 All rights reservedKey X1 time, t, to fracture, expressed in hours X2 time, t, to fracture, expressed in years Y hoop str
49、ess, , expressed in megapascal Figure 2 Expected strength of PE-RT Type II pipes BS EN ISO 22391-2:2009ISO 22391-2:2009(E) ISO 2009 All rights reserved 5In order to demonstrate conformance to the reference lines, pipe samples should be tested in accordance with ISO 1167-1 and ISO 1167-2 at the following temperatures and at various hoop stresses such that, at each of the temperatures, at least three failure times fall in each of the following
