|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN1050:1997TheEuropeanStandardEN1050:1996hasthestatusofaBritishStandardICS13.110NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWSafetyofmachineryÐPrinciplesforriskassessmentBSEN1050:1997ThisBritishStandard,havingbeenpreparedunderthedirectionoftheEngineeringSectorBoard,waspublishedundertheauthorityoftheStandardsBoardandcomesintoeffecton15March1997©BSI1997ThefollowingBSIreferencesrelatetotheworkonthisstandard:CommitteereferenceMCE/3Draftforcomment93/704967DCISBN0580271536AmendmentsissuedsincepublicationAmd.No.DateTextaffectedCommitteesresponsibleforthisBritishStandardThepreparationofthisBritishStandardwasentrustedtoTechnicalCommitteeMCE/3,Safeguardingofmachinery,uponwhichthefollowingbodieswererepresented:AdvancedManufacturingTechnologyResearchInstituteBritishCableMakers'ConfederationBritishCompressedAirSocietyBritishRubberManufacturers'AssociationBritishTextileMachineryAssociationConsumerPolicyCommitteeofBSIEngineeringEmployers'FederationEngineeringEquipmentandMaterialUsers'AssociationFederationofBakersHealthandSafetyExecutiveLossPreventionCouncilMachineToolTechnologiesAssociationMachinerySafetyEquipmentManufacturers'AssociationPICONSocietyofLaundryEngineersandAlliedTradesLimitedTradesUnionCongressBSEN1050:1997©BSI1997iContentsPageCommitteesresponsibleInsidefrontcoverNationalforewordiiForeword2TextofEN10503ii©BSI1997BSEN1050:1997NationalforewordThisBritishStandardhasbeenpreparedbyTechnicalCommitteeMCE/3andistheEnglishlanguageversionofEN1050:1996SafetyofmachineryÐPrinciplesofriskassessmentpublishedbytheEuropeanCommitteeforStandardization(CEN).EN1050wasproducedasaresultofinternationaldiscussionsinwhichtheUnitedKingdomtookanactivepart.Cross-referencesPublicationreferredtoCorrespondingBritishStandardBSEN292Safetyofmachinery.Basicconcepts,generalprinciplesfordesignEN292-1:1991Part1:1991Basicterminology,methodologyEN292-2:1991A1:1995Part2:1991TechnicalprinciplesandspecificationsBSEN60204Safetyofmachinery.ElectricalequipmentofmachinesEN60204-1:1992Part1:1993SpecificationforgeneralrequirementsCompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,pagesiandii,theENtitlepage,pages2to16,aninsidebackcoverandabackcover.CENEuropeanCommitteeforStandardizationComiteÂEuropeÂendeNormalisationEuropaÈischesKomiteefuÈrNormungCentralSecretariat:ruedeStassart36,B-1050Brussels©1996CopyrightreservedtoCENmembersRef.No.EN1050:1996EEUROPEANSTANDARDEN1050NORMEEUROPEÂENNEEUROPAÈISCHENORMNovember1996ICS13.110Descriptors:Safetyofmachines,accidentprevention,hazards,safetymeasures,specificationsEnglishversionSafetyofmachineryÐPrinciplesforriskassessmentSeÂcuriteÂdesmachinesÐPrincipespourl'apprecÂiationdurisqueSicherheitvonMaschinenÐLeitsaÈtzezurRisikobeurteilungThisEuropeanStandardwasapprovedbyCENon1996-08-22.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.Page2EN1050:1996©BSI1997ForewordThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC114,Safetyofmachinery,theSecretariatofwhichisheldbyDIN.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyMay1997,andconflictingnationalstandardsshallbewithdrawnatthelatestbyMay1997.ThisEuropeanStandardhasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropeanFreeTradeAssociationandsupportsessentialrequirementsofEUDirective(s).AnnexAisinformativeandcontainsexamplesofhazards,hazardoussituationsandhazardousevents.AnnexBisinformativeandcontainsmethodsforanalysinghazardsandestimatingrisk.AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Denmark,Finland,France,Germany,Greece,Iceland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom.ContentsPageForeword20Introduction31Scope32Normativereferences33Definitions34Generalprinciples34.1Basicconcept34.2Informationforriskassessment55Determinationofthelimitsofmachinery56Hazardidentification57Riskestimation57.1General57.2Elementsofrisk57.3Aspectstobeconsideredwhenestablishingelementsofrisk78Riskevaluation