BS EN 397 2025.docx

BSEN397:2025BSIStandardsPublicationIndustrialprotectivehelmetsbsi.NationalforewordThisBritishStandardistheUKimplementationofEN397:2025.ItsupersedesBSEN397:2O12+A1:2012,whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteePH61,Industrialsafetyhelmets.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitscommitteemanager.ContractualandlegalconsiderationsThispublicationhasbeenpreparedingoodfaith,howevernorepresentation,warranty,assuranceorundertaking(expressorimplied)isorwillbemade,andnoresponsibilityorliabilityisorwillbeacceptedbyBSIinrelationtotheadequacy,accuracy,completenessorreasonablenessofthispublication.Allandanysuchresponsibilityandliabilityisexpresslydisclaimedtothefullextentpermittedbythelaw.Thispublicationisprovidedasis,andistobeusedattherecipientsownrisk.Therecipientisadvisedtoconsiderseekingprofessionalguidancewithrespecttoitsuseofthispublication.Thispublicationisnotintendedtoconstituteacontract.Usersareresponsibleforitscorrectapplication.ThispublicationhasbeenpreparedunderamandategiventotheEuropeanStandardsOrganizationsbytheEuropeanCommissionandtheEuropeanFreeTradeAssociation.ItisintendedtosupportrequirementsoftheEUlegislationdetailedintheEuropeanForeword.AEuropeanAnnex,usuallyAnnexZAorZZ,describeshowthispublicationrelatestothatEUlegislation.FortheGreatBritainmarket(England,ScotlandandWales),ifUKGovernmenthasdesignatedthispublicationforconformitywithUKCAmarking(orsimilar)legislation,itmaycontainanadditionalNationalAnnex.WheresuchaNationalAnnexexists,itshowsthecorrelationbetweenthispublicationandtherelevantUKlegislation.IfthereisnoNationalAnnexofthiskind,therelevantAnnexZAorZZinthebodyoftheEuropeantextwillindicatetherelationshiptoUKregulationapplicableinGreatBritain.ReferencestoEUlegislationmayneedtobereadinaccordancewiththeUKdesignationandtheapplicableUKlaw.FurtherinformationondesignatedstandardscanbefoundatWWFortheNorthernIrelandmarket,UKlawwillcontinuetoimplementrelevantEUlawsubjecttoperiodicconfirmation.ThereforeAnnexZA/ZZintheEuropeantext,andreferencestoEUlegislation,arestillvalidforthismarket.UKGovernmentisresponsibleforlegislation.Forinformationonlegislationandpoliciesrelatingtothatlegislation,consulttherelevantpagesofwww.gov.uk.©TheBritishStandardsInstitution2025PublishedbyBSIStandardsLimited2025ISBN9780539221640ICS13.340.20CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon30April2025.Amendments/corrigendaissuedsincepublicationDateTextaffectedEN397April2025EUROPEANSTANDARDNORMEEUROPEENNEEuropaischenormICS13.340.20SupersedesEN397:2012+Al:2012EnglishVersionIndustrialprotectivehelmetsCasquesdeprotectionpourFindustrieIndustrieschutzhelmeThisEuropeanStandardwasapprovedbyCENon14March2025.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-1040BrusselsRef.No.EN397:2025E©2025CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.ContentsPageEuropeanforeword4Introduction51 Scope62 Normativereferences63 Termsanddefinitions74 Requirements94.1 Physicalrequirements94.1.1 Requirementsoverview94.1.2 General104.1.3 Materialanddesign104.1.4 Penetrationoftheshellviaventilationholes104.1.5 Sizing104.1.6 Ergonomics114.2 Performancerequirements114.2.1 Shockabsorptionon-crownimpactsfortype1and2114.2.2 Shockabsorptionforhighenergyon-crownimpactfortype2114.2.3 Shockabsorptionforoff-crownimpactsfortype2114.2.4 Resistancetopenetration114.2.5 Retentionsystem114.2.6 Resistancetoignition124.2.7 Specialapplicationrequirements124.2.8 Marking185 Testmethods185.1 Samples185.2 Conditioningfortesting245.2.1 General245.2.2 Ambienttemperature245.2.3 Lowt