|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN1568-1:2000IncorporatingCorrigendumNo.1TheEuropeanStandardEN1568-1:2000hasthestatusofaBritishStandardICS13.220.10NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWFireextinguishingmediaÐFoamconcentratesÐPart1:Specificationformediumexpansionfoamconcentratesforsurfaceapplicationtowater-immiscibleliquids©BSI02November-2001ISBN0580357821BSEN1568-1:2000AmendmentsissuedsincepublicationAmd.No.DateComments13396CorrigendumNo.102November2001AdditionofsupersessiondetailstoNationalforewordNationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN1568-1:2000.TogetherwithBSEN1568-2:2000itsupersedesBSISO7203-2:1995,whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteeFSH/18,Fixedfirefightingsystems,toSubcommitteeFSH/18/3,Foammedia,whichhastheresponsibilityto:Ðaidenquirerstounderstandthetext;ÐpresenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;ÐmonitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitledªInternationalStandardsCorrespondenceIndexº,orbyusingtheªFindºfacilityoftheBSIStandardsElectronicCatalogue.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to32,aninsidebackcoverandabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.:Spécificationspourlesémulseursmoyenfoisonnementdestinésàuneapplicationàlasurfacedesliquidesn'ayantpasd'affinitépourl'eauFeuerlöschmittel-Schaummittel-Teil1:AnforderungenanSchaummittelzurErzeugungvonMittelschaumzumAufgebenaufnicht-polareFlüssigkeitenThisEuropeanStandardwasapprovedbyCENon13November1999.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2000CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN1568-1:2000E©BSI17October2001ContentsPageForeword3Introduction41Scope52Normativereferences53Termsanddefinitions64Sedimentinthefoamconcentrate75Viscosityofthefoamconcentrate76pHofthefoamconcentrate77Surfacetensionofthefoamsolution78Spreadingcoefficientofthefoamsolutions89Expansionanddrainageoffoam810Testfireperformance911Containermarking9AnnexA(informative)Gradesoffoamconcentrate10AnnexB(normative)Preliminarysamplingoffoamconcentrates11AnnexC(normative)Determinationofpercentagesediment12AnnexD(normative)Determinationofviscosityforpseudoplasticfoamconcentrate13AnnexE(normative)Temperatureconditioningoffoamconcentrates15AnnexF(normative)Determinationofsurfacetensionandspreadingcoefficient17AnnexG(normative)Determinationofexpansionanddrainagetime18AnnexH(normative)Descriptionofaradiationmeasurementmethod26AnnexK(Informative)A-deviations30Bibliography32©BSI17October2001ForewordThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC191,Fixedfirefightingsystems,theSecretariatofwhichisheldbyBSI.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyApril2001,andconflictingnationalstandardsshallbewithdraw