1、BRITISH STANDARD BS EN ISO 15875-5:2003 Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X) Part 5: Fitness for purpose of the system The European Standard EN ISO 15875-5:2003 has the status of a British Standard ICS 23.040.01; 91.140.60 BS EN ISO 15875-5:200
2、3 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 June 2004 BSI 14 June 2004 ISBN 0 580 43886 4 National foreword This British Standard is the official English language version of EN ISO 15875-5:2003. It is identical with ISO 15875-5:2003.
3、 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, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on req
4、uest to its secretary. Additional information The UK voted against the acceptance of this standard at the CEN Formal Vote, and PRI 88/2 will maintain BS 7291-1:2001 1) , BS 7291-2:2001 2)and BS 7291-3:2001 3)and strongly recommends the continued use of polybutylene (PB) and crosslinked polyethylene
5、(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 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
6、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 service temperature for sealed central heating systems, designated as Class S, is 105 C and the system malfunction temperature is 114 C. Both these temperatur
7、es 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. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for cha
8、nge, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. 1) BS 7291-1:2001, Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating installations in buildings Part 1: General requirem
9、ents. 2) BS 7291-2:2001, Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating installations in buildings Part 2: Specification for polybutylene (PB) pipes and associated fittings. 3) BS 7291-3:2001, Thermoplastics pipes and associated fittings for hot
10、 and cold water for domestic purposes and heating installations in buildings Part 3: Specification for cross-linked polyethylene (PE-X) pipes and associated fittings. Amendments issued since publication Amd. No. Date CommentsBS EN ISO 15875-5:2003 BSI 14 June 2004 i b) In addition to the above: 1) T
11、he normal maximum operating cold water supply pressure in the UK is 12.5 bar 4)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 jointing
12、 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 297:1994 5) , BS EN 483:2000 6)and BS EN 625:1996 7) . Consequently piping systems could be s
13、ubjected 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 12828 8) , 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
15、to address this issue in appropriate harmonized European Standards. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”,
16、or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. 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 does not of itself confer i
17、mmunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.
18、 4) 1 bar = 100 kPa. 5) BS EN 297:1994, Gas-fired central heating boilers Type B 11and B 11BSboilers 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:
19、1996, Gas-fired central heating 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.ii blankEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHEN
20、ORM ENISO158755 December2003 ICS23.040.01;91.140.60 Englishversion Plasticspipingsystemsforhotandcoldwaterinstallations Crosslinkedpolyethylene(PEX)Part5:Fitnessforpurposeof thesystem(ISO158755:2003) Systmesdecanalisationsenplastiquepourles installationsdeauchaudeetfroidePolythynerticul (PEX)Partie5
21、:Aptitudelemploidusystme(ISO 158755:2003) KunststoffRohrleitungssystemefrdieWarmund KaltwasserinstallationVernetztesPolyethylen(PEX) Teil5:GebrauchstauglichkeitdesSystems(ISO15875 5:2003) ThisEuropeanStandardwasapprovedbyCENon17March2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulatio
22、nswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(En
23、glish,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,
24、 Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationi
25、nanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO158755:2003EENISO158755:2003(E) 2 Contents 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions,symbolsandabbreviatedterms .5 4 Fitnessforpurposeofthejointsandthepipingsystem. 5 4.1 General5 4.2 Internalpressuretest 6 4.3 B
26、endingtest .6 4.4 Pullouttest . .7 4.5 Thermalcyclingtest 8 4.6 Pressurecyclingtest. 8 4.7 Leaktightnessundervacuum .9 Bibliography 10ENISO158755:2003(E) 3 Foreword Thisdocument(ENISO158755:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC155“Plasticspiping systemsandductingsystems”,thesecretariatofwhi
27、chisheldbyNEN, incollaborationwithTechnicalCommittee ISO/TC138 “Plasticspipes,fittingsandvalvesforthetransportoffluids“. ThisEuropeanStandard.shallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyJune2004,andconflictingnationalstandardsshallbewith
28、drawnatthelatestby December2005. NOTE1 ThisdraftwassubmittedforCENenquiryasprEN123185:1996. ThisstandardispartofaSystemStandardforplasticspipingsystemsofaparticularmaterialforaspecified application.ThereareanumberofsuchSystemStandards. SystemStandardsarebasedontheresultsoftheworkundertakeninISO/TC13
29、8“Plasticspipes,fittingsand valvesforthetransportoffluids”,whichisaTechnicalCommitteeoftheInternationalOrganizationfor Standardization(ISO). TheyaresupportedbyseparatestandardsontestmethodstowhichreferencesaremadethroughouttheSystem Standard. TheSystemStandardsareconsistentwithgeneralstandardsonfunc
30、tionalrequirementsandrecommended practicesforinstallation. ENISO15875consistsofthefollowingParts 1) ,underthegeneraltitle Plasticspipingsystemsforhotandcold waterinstallationsCrosslinkedPolyethylene(PEX) Part1:General Part2:Pipes Part3:Fittings Part5:Fitnessforpurposeofthesystem (thepresentstandard)
31、 Part7:Guidancefortheassessmentofconformity (intendedtobepublishedasCENISO/TS158757). ThisPartofENISO15874:2003includesaBibliography. Atthedateofpublicationofthisstandard,SystemStandardsforpipingsystemsofotherplasticsmaterialsusedfor thesameapplicationarethefollowing: ENISO15874, Plasticspipingsyste
32、msforhotandcoldwaterinstallations Polypropylene(PP) (ISO15875:2003) ENISO15876, Plasticspipingsystemsforhotandcoldwaterinstallations Polybutylene(PB)(ISO15876:2003) ENISO15877, Plasticspipingsystemsforhotandcoldwaterinstallations Chlorinatedpoly(vinylchloride) (PVCC)(ISO15877:2003) Forpipesandfittin
33、gswhichhaveconformedtotherelevantnationalstandardbefore1 st November,2003,as shownbythemanufacturerorbyacertificationbody,thenationalstandardmaycontinuetoapplyuntil30 th November,2005. 1)ThisSystemStandarddoesnotincorporateaPart4 Ancillaryequipment oraPart6: Guidanceforinstallation. Forancillary equ
34、ipmentseparatestandardscanapply.Guidanceoninstallationofplasticspipingsystemsmadefromdifferentmaterials intendedtobeusedforhotandcoldwaterinstallationsisgivenbyENV12108 1 .ENISO158755:2003(E) 4 Accordingt o the CEN/CENELEC Internal Regulations,t he nationalst andards organizationsof the following co
35、untries are boundt o implementthisEuro peanS tandard: Austria,Belgiu m, Czech Republic, Denmark,Finlan d, France,Ger many,Greece, Hungary, Iceland,Irela nd,It aly, Luxembourg,M alta,Ne therlands, Norway, Portugal, Slovakia,S pain, Sweden,Swi tzerlandandtheUnitedKin gdom. Introduction TheS ystemSta n
36、dard, ofw hich this isPart 5,speci fiest her equirements forapiping systemanditsco mponents when made from crosslinkedpo lyethylene(PEX). Thepi ping system isint endedto beused for hot andc old water installations. Inrespectofp otential adversee ffectsonth e quality ofw aterint ended forhu manconsu
37、mption,caus ed by the productc overed by ENISO 15875; Thisstandardp rovides no informationast o whetherthepr oduct maybeuse d withoutrestrictio n in any of the MemberStates oftheEUor EFTA; Itsho uld be notedt hat, while awaiting the adoptionofve rifiable Europeancrite ria, existing nationalr egulati
38、ons concerningt heus e and/ort hecharac teristicsofthisp roductre main in force. Requirementsand test methods forc omponentsoft he piping systemarespeci fiedin Part 1, 2 and 3ofthis System Standard.Part7(CEN ISO/TS15 8757) givesg uidance forth e assessmentof conformity. ThisPartofEN ISO15 875s pecif
39、iest hecharacte risticsof fitness forpurposeofthe piping systems. 1Scope ThisPartofEN ISO1 5875s pecifiest hecharac teristicsofthe fitness forpurposeofcrosslin kedp olyethylene (PEX)piping systems,intend edto be used forhota ndcold waterinstallati ons within buildings forthec onveyance ofwa ter whet
40、her ornoti ntended for humanconsu mption(do mestic systems)and forhea ting systems,under design pressuresa ndt emperatures accordingt ot hec lass of application(s eeT able 1of EN ISO 15875 1:2003). Thisstandardc oversar angeofservicec onditions(a pplicationclasses)and designpressureclasses.For value
41、s of T D , T max and T mal inexcessof thosein Table1of Part1 , thisstan dard does not apply. NOTE It isth ere sponsibilityofthepu rchasero r specifiert o make theappropri ate selections from thesea spects,t akingi nto account their particularrequir ementsandanyrelevantnationalregulatio ns andinstall
42、 ationpracti ceso r codes. Italso specifiest hetest parameters forthetest methodsre ferredt o in thisst andard. Inconjunc tion witht heo ther partsofE N ISO 15875:2003 (seeFor eword)itis applicable to PEX pipes, fittings, theirj oints and tojoints withco mponentsof other plastics and nonplastics mat
43、erials intended tobeused forhot and coldwaterinst allations. 2 Normati vereferences Thisstandar d incorporates by datedor undatedre ference,pr ovisions fromotherpu blications. Thesenor mative referencesarecit eda t the appropriate places in the texta ndt he publications arelistedherea fter. Forda te
44、d references,subsequ ent amendmentsto,orr evisionso f, any of these publicationsa pplytot hisstan dard only when incorporated in it by amendmentorrevision. Foru ndatedre ferencest helatest editionoft hep ublicationre ferred to applies (includinga mendments). EN7 12, Thermoplasticspipingsystems Endlo
45、adbearingmechanicaljointsbetweenpressurepipesandfittings Testmethodforresistancetopulloutunderconstantlongitudinalforce EN7 13, Plasticspipingsystems Mechanicaljointsbetweenfittingsandpolyolefinpressurepipes Test methodforleaktightnessunderinternalpressureofassembliessubjectedtobendingENISO158755:2003(E) 5 EN921, Plasticspipingsy
