BRITISHSTANDARDBSEN681-1:1996IncorporatingAmendmentsNos.1and2andCorrigendumNo.1Elastomericseals—Materialrequirementsforpipejointsealsusedinwateranddrainageapplications—Part1.VulcanizedrubberTheEuropeanStandardEN681-1:1996,withtheincorporationofamendmentsA1:1998andA2:2002,hasthestatusofaBritishStandardICS23.040.80;83.060 CopyrightBritishStandardsInstitutionReproducedbyIHSunderlicensewithBSI-UncontrolledCopyDocumentprovidedbyIHSLicensee=BureauVeritas/5959906001,11/08/200405:16:27MSTQuestionsorcommentsaboutthismessage:pleasecalltheDocumentPolicyGroupat303-397-2295.--`,,,,``,`,,,,`,,,`,,`,`,``,,-`-`,,`,,`,`,,`---BSEN681-1:1996ThisBritishStandard,havingbeenpreparedunderthedirectionoftheSectorCommitteeforMaterialsandChemicals,waspublishedundertheauthorityoftheStandardsCommitteeandcomesintoeffecton15November1996©BSI9December2002ThefollowingBSIreferencesrelatetotheworkonthisstandard:CommitteereferencePRI/70Draftforcomment92/38914DCISBN0580222861CommitteesresponsibleforthisBritishStandardThepreparationofthisBritishStandardwasentrustedtoTechnicalCommitteePRI/70,Elastomericsealsforjointsinpipeworkandpipelines,uponwhichthefollowingbodieswererepresented:BritishGasplcBritishPlasticsFederationBritishPrecastConcreteFederationLtd.BritishRubberManufacturers’AssociationLtd.CharteredInstitutionofWaterandEnvironmentalManagementClayPipeDevelopmentAssociationLimitedConcretePipeAssociationDuctileIronProducers’AssociationFibreCementManufacturers’AssociationLimitedMalaysianRubberProducersResearchAssociationRAPRATechnologyLtd.SocietyofBritishWaterIndustriesWaterCompaniesAssociationWaterServicesAssociationofEnglandandWalesAmendmentsissuedsincepublicationAmd.No.DateComments10214December19981370626July200214178CorrigendumNo.19December2002IndicatedbyasidelineCopyrightBritishStandardsInstitutionReproducedbyIHSunderlicensewithBSI-UncontrolledCopyDocumentprovidedbyIHSLicensee=BureauVeritas/5959906001,11/08/200405:16:27MSTQuestionsorcommentsaboutthismessage:pleasecalltheDocumentPolicyGroupat303-397-2295.--`,,,,``,`,,,,`,,,`,,`,`,``,,-`-`,,`,,`,`,,`---BSEN681-1:1996©BSI9December2002iContentsPageCommitteesresponsibleInsidefrontcoverNationalforewordiiForeword2TextofEN681-14CopyrightBritishStandardsInstitutionReproducedbyIHSunderlicensewithBSI-UncontrolledCopyDocumentprovidedbyIHSLicensee=BureauVeritas/5959906001,11/08/200405:16:27MSTQuestionsorcommentsaboutthismessage:pleasecalltheDocumentPolicyGroupat303-397-2295.--`,,,,``,`,,,,`,,,`,,`,`,``,,-`-`,,`,,`,`,,`---BSEN681-1:1996ii©BSI9December2002NationalforewordThisBritishStandardhasbeenpreparedbyTechnicalCommitteePRI/70andistheEnglishlanguageversionofEN681-1:1996,Elastomericseals—Materialsrequirementsforpipejointsealsusedinwateranddrainageapplications—Part1:Vulcanizedrubber,includingamendmentsA1:1998andA2:2002andCorrigendumAugust2002,publishedbytheEuropeanCommitteeforStandardization(CEN).EN681-1:1996wasproducedasaresultofinternationaldiscussionsinwhichtheUnitedKingdomtookanactivepart.EN681-1:1996hasbeenapprovedbyCENmemberbodiesundertheweightedvotingproceduresintroducedin1988tocoincidewiththeintroductionof“NewApproach”DirectivesfromtheCommissionoftheEuropeanCommunity.Toensurethattheseproductsdonothaveanydetrimentaleffectsonthequalityofwaterintendedforhumanconsumption,thematerialsofconstructionincontactwithwaterwillbetestedinaccordancewiththemethodstandardsbeingdevelopedbyCEN/TC64concernedwitheffectsofmaterialsonwaterquality.Intheabsenceofthesestandards,therespectivenationalstandard,BS6920applies.ThisstandardsupersedesrequirementsforvulcanizedrubbersealstypesW,D,HandS,usedinwateranddrainageapplicationsasgiveninBS2494andthesetypeswillbewithdrawnbyamendment.OtherPartsofBSEN681willbepublishedinthefuturetosupersederequirementsfortypeTandtypeGsealsinBS2494.Attentionisdrawntoparagraph2oftheEuropeanforeword.ItwasdecidedbyCEN/TC208thattherewouldbeaoneyeartransitionperiodduringwhichvulcanizedrubbersealsmaybeproducedtoeitherBS2494orBSEN681-1.Followingthechangeoverperiod,BS2494willbeamendedtodeleterequirementsforvulcanizedrubberseals,i.e.byOctober1997.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,pagesitoiitheENtitlepage,pages2to19andabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.Sidelininginthisdocumentindicatesthemostrecentchangesbyamendment.CopyrightBritishStandardsInstitutionReproducedbyIHSunderlicensewithBSI-UncontrolledCopyDocumentprovidedbyIHSLicensee=BureauVeritas/5959906001,11/08/200405:16:27MSTQuestio