EN 17308 2024.docx

EN17308EuropeanstandardNormeeuropeenneNovember2024EuropaischenormICS13.030.50;83,160.01SupersedesCEN/TS17308:2019EnglishVersionMaterialsproducedfromendoflifetyres-Steelwire-Determinationofthenon-metalliccontentMateriauxobtenusapartirdepneususagesnonreutilisables(PUNR)-Filsmetalliques-DeterminationdelateneurenmateriauxnonmetalliquesAusAltreifengewonneneMaterialien-Stahldrahte-Bestimmungdernicht-metallischenBestandteileThisEuropeanStandardwasapprovedbyCENon6October2024.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEEUROPEENDENORMALISATIONEuropaischeskomiteefurnormungCEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels©2024CENAllrightsofexploitationinanyformandbyanymeansreservedRef.No.EN17308:2024EworldwideforCENnationalMembers.ContentsPageEuropeanforeword41 Scope52 Normativereferences53 Termsanddefinitions54 Testingprogramme75 Determinationofnon-metalliccontentinsteelwire75.1 General75.2 Preparationofsamplingplanandlaboratorysample75.2.1 Principleofcorrectsampling75.2.2 Samplingplan85.2.3 Definitionoflotsize85.2.4 Samplingpointandapparatus85.2.5 Sizeofasampleincrement85.2.6 Numberofsampleincrements95.2.7 Metrologicalcharacteristicsofsampling95.2.8 Visualassessment95.3 StorageandtransportOflaboratorysample(三)95.4 Laboratorysample(三)andtestportion(三)95.4.1 Generalprinciple95.4.2 Laboratorysample96 Determinationbypyrolysismethod96.1 Principle.96.2 Apparatus96.2.1 Analyticalscales96.2.2 Pyrolysisset-up106.2.3 Steelwirecleaningapparatus106.2.4 Magnets116.2.5 Tray.116.3 Sampling116.4 Determination116.5 Expressionofresults127 Determinationbyhydrostaticmethod137.1 Principle137.2 Pretreatment137.3 Apparatus137.3.1 Analyticalscale137.3.2 Hydrostaticapparatus137.3.3 Reagents157.4 Procedure157.5 Calculation157.6 Metrologicalcharacteristics168 Report16Annex A (informative)Exampleofatestreportsheet17Annex B (informative)Schematicdiagramofapyrolyzer18Annex C (informative)Explanationoftheformulausedinthehydrostaticmethod19Bibliography21EuropeanforewordThisdocument(EN17308:2024)hasbeenpreparedbyTechnicalCommitteeCEN/TC366''MaterialsobtainedfromEnd-of-LifeTyres(ELT)”,thesecretariatofwhichisheldbyUNLThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyMay2025andconflictingnationalstandardsshallbewithdrawnatthelatestbyMay2025.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CENshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ThisdocumentsupersedesCEN/TS17308:2019.Anyfeedbackandquestionsonthisdocumentshouldbedirectedtotheusers'nationalstandardsbody.AcompletelistingofthesebodiescanbefoundontheCENwebsite.AccordingtotheCEN-CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,SlovenialSpain,Sweden,Switzerland,TiirkiyeandtheUnitedKingdom.1 ScopeThisdocumentspecifiestwodifferentmethodsforthequantitativeestimationofnon-metalliccontentremainingadheredtothesteelwireobtainedfromtherecoveryofmaterialsfromend-of-lifetyres.Thepyrolysismethodisconsideredasthereferencemethodwhilethehydrostaticmethodisconsideredasaninsitumethod.Thisdocumentincludessamplecollectionandthepreparationofrepresentativesamplesbasedonasamplingplanforthepurposeoftheircharacterization.Thisdocumentdoesnotapplytotheoperationalperformanceorfitnessforuseofthematerialswhicharedeemedtobeafunctionofagreementsbetweenthemanufacturerandthecustomer.Thisdocumentdoesnotapplytoaddressallthesafetyconcerns,ifany,associatedwithitsuse.Thisdocumentdoesnotestablishappropriatesafetyandhealthpractices