1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Crosslinked polyethylene (PE-X) Part 2: PipesThe European Standard EN ISO 15875-2:2003, incorporati
2、ng amendment A1:2007, has the status of a British StandardICS 23.040.20; 91.140.60Plastics piping systems for hot and cold water installations BRITISH STANDARDBS EN ISO 15875-2:2003Incorporating amendment no. 1BS EN ISO 15875-2:2003This British Standard was published under the authority of the Stand
3、ards Policy and Strategy Committee on 14 June 2004 BSI 2007ISBN 978 0 580 59878 4A list of organizations represented on this subcommittee can be obtained on request to its secretary.Additional informationThe UK voted against the acceptance of this standard at the CEN Formal Vote, and PRI 88/2 will m
4、aintain BS 7291-1:20011), BS 7291-2:20012)and BS 7291-3:20013)and strongly recommends the continued use of polybutylene (PB) and crosslinked polyethylene (PE-X) piping systems certified to BS 7291-2 or BS 7291-3, Class S, for the following reasons.a) Attention is drawn to the statement in the Scope
5、of BS EN ISO 15875-1 relating to the exclusion from it of piping systems having service conditions in excess of those quoted in BS EN ISO 15875-1, Table 1. Central heating systems in the UK fall into this category. BS 7291-1 states the service conditions for UK systems where the maximum system servi
6、ce temperature for sealed central heating systems, designated as Class S, is 105 C and the system malfunction temperature is 114 C. Both these temperatures are significantly in excess of those specified in BS EN ISO 15875-1, Table 1 and these UK systems are therefore not covered by this standard.1)B
7、S 7291-1:2001, Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating installations in buildings Part 1: General requirements.2)BS 7291-2:2001, Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating install
8、ations in buildings Part 2: Specification for polybutylene (PB) pipes and associated fittings.3)BS 7291-3:2001, Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating installations in buildings Part 3: Specification for cross-linked polyethylene (PE-X)
9、pipes and associated fittings.Amendments issued since publicationAmd. No. Date Comments17245 31 July 2007 Subclause 6.1.3 replaced. References 7-10 added to Bibliography.National forewordThis British Standard is the UK implementation of EN ISO 15875-2:2003, incorporating amendment A1:2007. It is ide
10、ntical with ISO 15875-2:2003, incorporating amendment 1:2007.The UK participation in its preparation was entrusted by Technical Committee PRI/88, Plastics piping systems, to Subcommittee PRI/88/2, Plastics piping systems for pressure applications.BS EN ISO 15875-2:2003 BSI 2007b) In addition to the
11、above:1) The normal maximum operating cold water supply pressure in the UK is 12.5 bar4)which some categories of piping systems in the BS EN ISO 15875 series of standards do not meet.2) The BS EN ISO 15875 series of standards does not specifically describe push fit joints, which are the predominant
12、jointing method in the UK.3) There is a disparity between the malfunction temperature quoted in BS EN ISO 15875-1, Table 1 (100 C) and the malfunction temperatures applicable to boilers (110 C) conforming to BS EN 297:19945), BS EN 483:20006)and BS EN 625:19967). Consequently piping systems could be
13、 subjected to temperatures in service for which they have not been tested.4) The unique and traditional practice in the UK is to use products certified to BS 7291-2 or BS 7291-3, Class S, for all applications, as defined in BS 7291-1. This is recognized in the national annex to BS EN 128288), which
14、recommends the use of systems suitable for the maximum temperatures and pressures for their intended application specified in BS 7291-1.Updated versions of BS 7291-1, BS 7291-2 and BS 7291-3 are being prepared, which maintain these traditional UK operating conditions, and measures are being taken to
15、 address this issue in appropriate harmonized European Standards.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.4)1 bar = 100 k
16、Pa.5)BS EN 297:1994, Gas-fired central heating boilers Type B11and B11BSboilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW.6)BS EN 483:2000, Gas-fired central heating boilers Type C boilers of nominal heat input not exceeding 70 kW.7)BS EN 625:1996, Gas-fired central h
17、eating boilers Specific requirements for the domestic hot water operation of combination boilers of nominal heat input not exceeding 70 kW.8)BS EN 12828, Heating systems in buildings Design for water-based heating systems.iiiblankEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 15875-2December
18、2003ICS 23.040.20; 91.140.60English versionPlastics piping systems for hot and cold water installations -Crosslinked polyethylene (PE-X) - Part 2: Pipes (ISO 15875-2:2003)Systmes de canalisations en plastique pour lesinstallations deau chaude et froide - Polythylne rticul(PE-X) - Partie 2: Tubes (IS
19、O 15875-2:2003)Kunststoff-Rohrleitungssysteme fr die Warm- undKaltwasserinstallation - Verneztes Polyethylen (PE-X) - Teil2: Rohre (ISO 15875-2:2003)This European Standard was approved by CEN on 14 March 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate t
20、he conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in thr
21、ee official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria
22、, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR N
23、ORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2003 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 15875-2:2003 E+ A1June 2007EN ISO 15875-2:2003 (E)2ContentsContents. 2Introduction . 41 Scope 52 Normative referenc
24、es 53 Terms and definitions, symbols and abbreviated terms. 54 Material. 64.1 Pipe material 64.2 Evaluation of s LCL-values . 64.3 Influence on water intended for human consumption 85 General characteristics. 85.1 Appearance 85.2 Opacity . 86 Geometrical characteristics . 86.1 General. 86.2 Dimensio
25、ns of pipes. 97 Mechanical characteristics. 118 Physical and chemical characteristics . 129 Performance requirements 1310 Marking. 1310.1 General requirements 1310.2 Minimum required marking. 13Annex A (informative) Derivation of Scalc,max values . 15A.1 General. 15A.2 Design stress . 15A.3 Derivati
26、on of maximum value of Scalc(Scalc,max) 16A.4 Use of Scalc,maxto determine wall thickness 16Bibliography 17EN ISO 15875-2:2003 (E)3ForewordThis document (EN ISO 15875-2:2003) has been prepared by Technical Committee CEN/TC 155 “Plastics pipingsystems and ducting systems”, the secretariat of which is
27、 held by NEN, in collaboration with Technical CommitteeISO/TC 138 “Plastics pipes, fittings and valves for the transport of fluids“.NOTE This draft was submitted for CEN enquiry as prEN 12318-2:1996.This European Standard shall be given the status of a national standard, either by publication of an
28、identical text orby endorsement, at the latest by June 2004, and conflicting national standards shall be withdrawn at the latest byDecember 2005.This standard is part of a System Standard for plastics piping systems of a particular material for a specifiedapplication. There are a number of such Syst
29、em Standards.System Standards are based on the results of the work undertaken in ISO/TC 138 “Plastics pipes, fittings andvalves for the transport of fluids“, which is a Technical Committee of the International Organization forStandardization (ISO).They are supported by separate standards on test met
30、hods to which references are made throughout the SystemStandard.The System Standards are consistent with general standards on functional requirements and recommendedpractices for installation.EN ISO 15875 consists of the following Parts 1), under the general title Plastics piping systems for hot and
31、 coldwater installations Crosslinked polyethylene (PE-X) Part 1: General Part 2: Pipes (the present standard) Part 3: Fittings Part 5: Fitness for purpose of the system Part 7: Guidance for the assessment of conformity (CEN ISO/TS 15875-7).This Part of EN ISO 15875 includes the following: Annex A (i
32、nformative): Derivation of Scalc,max; BibliographyAt the date of publication of this standard, System Standards for piping systems of other plastics materials used forthe same application are the following:EN ISO 15874:2003, Plastics piping systems for hot and cold water installations Polypropylene
33、(PP)(ISO 15875:2003)EN ISO 15876:2003, Plastics piping systems for hot and cold water installations Polybutylene (PB)(ISO 15876:2003)EN ISO 15877:2003, Plastics piping systems for hot and cold water installations Chlorinated poly(vinyl chloride)(PVC-C) (ISO 15877:2003)For pipes and fittings which ha
34、ve conformed to the relevant national standard before 1stNovember 2003, as shownby the manufacturer or by a certification body, the national standard may continue to apply until 30th November2005.1) This System Standard does not incorporate a Part 4 Ancillary equipment or a Part 6 Guidance for insta
35、llation. For ancillaryequipment separate standards can apply. Guidance on installation of plastics piping systems made from different materials,intended to be used for hot and cold water installations, is given by ENV 12108:20011.EN ISO 15875-2:2003 (E)4According to the CEN/CENELEC Internal Regulati
36、ons, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, S
37、witzerland and the United Kingdom.IntroductionThe System Standard, of which this is Part 2, specifies the requirements for a piping system when made fromcrosslinked polyethylene (PE-X). The piping system is intended to be used for hot and cold water installations.In respect of potential adverse effe
38、cts on the quality of water intended for human consumption, caused by theproduct covered by this standard: This standard provides no information as to whether the product may be used without restriction in any of theMember States of the EU or EFTA; It should be noted that, while awaiting the adoptio
39、n of verifiable European criteria, existing national regulationsconcerning the use and/or the characteristics of this product remain in force.Requirements and test methods for material and components, other than pipes are specified in Part 1 and Part 3 ofEN ISO 15875:2003. Characteristics for fitnes
40、s for purpose (mainly for joints) are covered in Part 5. Part 7(CEN ISO/TS 15875-7) gives guidance for the assessment of conformity.This Part of EN ISO 15875 specifies the characteristics of pipes.Foreword to amendment A1 This document (EN ISO 15875-2:2003/A1:2007) has been prepared by Technical Com
41、mittee CEN/TC 155 “Plastics piping systems and ducting systems“, the secretariat of which is held by NEN, 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, e
42、ither by publication of an identical text or by endorsement, at the latest by December 2007, and conflicting national standards shall be withdrawn at the latest by December 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bo
43、und 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, Slovakia, Slovenia, Spain, Sweden,
44、Switzerland and United Kingdom. EN ISO 15875-2:2003 (E)51 ScopeThis Part of EN ISO 15875 specifies the characteristics of pipes made from crosslinked polyethylene (PE-X) forpiping systems intended to be used for hot and cold water installations within buildings for the conveyance of water,whether or
45、 not intended for human consumption (domestic systems), and for heating systems, under designpressures and temperatures appropriate to the class of application (see Table 1 of EN ISO 15875-1:2003).This standard covers a range of service conditions, (application classes), design pressures and pipe di
46、mensionclasses. For values of TD, Tmax and Tmal in excess of those in Table 1of Part 1, this standard does not apply.NOTE 1 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account theirparticular requirements and any relevant
47、national regulations and installation practices or codes.It also specifies the test parameters for the test methods referred to in this standard.In conjunction with the other Parts of EN ISO 15875 (see Foreword) it is applicable to PE-X pipes, their joints andto joints with components of PE-X, other
48、 plastics and non-plastics materials intended to be used for hot and coldwater installations.It is applicable to pipes with or without (a) barrier layer(s).NOTE 2 In the case of plastics pipes provided with a thin barrier layer, e.g. to prevent or greatly diminish the diffusion of gases and thetrans
49、mission of light into or through the pipe wall, the design stress requirements are totally met by the base polymer (PE-X).2 Normative referencesThis Standard incorporates by dated or undated reference, provisions from other publications. These normativereferences are cited at the appropriate places in the text and the publications are listed hereafter. For datedreferences, subsequent amendments to or revisions of any of these publications apply to this Standard only when
