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ReferencenumberISO16750-3:2007(E)©ISO2007INTERNATIONALSTANDARDISO16750-3Secondedition2007-08-01Roadvehicles—Environmentalconditionsandtestingforelectricalandelectronicequipment—Part3:MechanicalloadsVéhiculesroutiers—Spécificationsd'environnementetessaisdeséquipementsélectriqueetélectronique—Partie3:ContraintesmécaniquesCopyrightInternationalOrganizationforStandardizationProvidedbyIHSunderlicensewithISOLicensee=IHSEmployees/1111111001,User=Wing,BernieNotforResale,10/17/200700:32:13MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--```,,,,``,``,,,,```,`,```,,``-`-`,,`,,`,`,,`---ISO16750-3:2007(E)PDFdisclaimerThisPDFfilemaycontainembeddedtypefaces.InaccordancewithAdobe'slicensingpolicy,thisfilemaybeprintedorviewedbutshallnotbeeditedunlessthetypefaceswhichareembeddedarelicensedtoandinstalledonthecomputerperformingtheediting.Indownloadingthisfile,partiesacceptthereintheresponsibilityofnotinfringingAdobe'slicensingpolicy.TheISOCentralSecretariatacceptsnoliabilityinthisarea.AdobeisatrademarkofAdobeSystemsIncorporated.DetailsofthesoftwareproductsusedtocreatethisPDFfilecanbefoundintheGeneralInforelativetothefile;thePDF-creationparameterswereoptimizedforprinting.EverycarehasbeentakentoensurethatthefileissuitableforusebyISOmemberbodies.Intheunlikelyeventthataproblemrelatingtoitisfound,pleaseinformtheCentralSecretariatattheaddressgivenbelow.COPYRIGHTPROTECTEDDOCUMENT©ISO2007Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromeitherISOattheaddressbeloworISO'smemberbodyinthecountryoftherequester.ISOcopyrightofficeCasepostale56•CH-1211Geneva20Tel.+41227490111Fax+41227490947E-mailcopyright@iso.orgWeb©ISO2007–AllrightsreservedCopyrightInternationalOrganizationforStandardizationProvidedbyIHSunderlicensewithISOLicensee=IHSEmployees/1111111001,User=Wing,BernieNotforResale,10/17/200700:32:13MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--```,,,,``,``,,,,```,`,```,,``-`-`,,`,,`,`,,`---ISO16750-3:2007(E)©ISO2007–AllrightsreservediiiContentsPageForeword............................................................................................................................................................iv1Scope.....................................................................................................................................................12Normativereferences...........................................................................................................................13Termsanddefinitions...........................................................................................................................14Testsandrequirements.......................................................................................................................24.1Vibration................................................................................................................................................24.2Mechanicalshock...............................................................................................................................194.3Freefall................................................................................................................................................214.4Surfacestrength/scratchandabrasionresistance.........................................................................224.5Gravelbombardment..........................................................................................................................225Codelettersformechanicalloads....................................................................................................226Documentation....................................................................................................................................22AnnexA(informative)Guidelineforthedevelopmentoftestprofilesforvibrationtests........................24AnnexB(informative)Recommendedmechanicalrequirementsforequipmentdependingonthemountinglocation...............................................................................................................................35Bibliography.....................................................................................................................................................36CopyrightInternationalOrganizationforStandardizationProvidedbyIHSunderlicensewithISOLicensee=IHSEmployees/1111111001,User=Wing,BernieNotforResale,10/17/200700:32:13MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--```,,,,``,``,,,,```,`,```,,``-`-`,,`,,`,`,,`---ISO16750-3:2007(E)iv©ISO2007–AllrightsreservedForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommittee