ISO 04779-2021.docx
INTERNATIONA1.STANDARDISO4779editionSeCOnd202108Chaincomponentsfor1.iftingpurposesForgedeyehookwithpointand1.atchGrade41.stain1.essstee1.,so1.utionannea1.edE1.ementsdechainesdeIevageCrochetsdeIevageforgesenacierabeeetacei1.Grade4,acierino×fdab1.efrecuitd'homog6n包sationISoR而加强O?财COPYRIGHTPROTECTEDDOCUMENT©ISO2021岫rkdea/山thUcdOthcnviscjft<c三orrtmcehDVBiwixuioiti08phnn11UatiocBhr<1.>hotoc<>p)Mng,ptbcatonpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanherequestedfromeitherISOattheaddressbe1.oworIS<smemberbodyinthecountryoftherequester.%,tft晒Iandonnet8CH-1214*crnicr,GenevaPhone：M1.22749O1.11Pub1.ishedinSwitzerhndContentsJoreworciScopeNormativereferencesTermsanddef1.nitionsDimensionsanddesignation.2344.4S4.1 Dimensions4.2 DesignationRequirements5.1 Materia1.5.2 Manufacture5.1 Duatrti:ahncnt5.5 Working1.oad1.imiIV1.1.5.6 Mechanica1.properties,34661.riHSSGenera1._Testforce,FrE1.ongationattestforceBreakingforce,FbTests66.1 Qua1.ificationofpersonne1.66.2 TyPetests66.2.1 CBhBDiisiontest66.2.3 Surfacetest763VtoA&轨uring,.examination.一.一.一.一.一._.一86.4.1 Genera1.86.4.2 Sizeof1.ot86.4.3 S姗蝌断87 6.4.51*ens1.etest-8 Marking9Ccrtificstos98.1 Typetestcertificate99 8.2Manufacturer'scertificateICI。Instructionsforuse10Environmenta1.issues10Annex A (informative)Basesfortheca1.cu1.ation11Annex B (informative)Conversions1.ingchains/chaincomponents14Bib1.iography1SForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsUudiugh(ISOm(iumbif1.4>n11thvcekHpfff1.0brjfigbodyhirHMwbtandriteN(nowMycamitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare蜩映也搬0f1.S0IECdWM1.h如。trWW1WekOrdanCeVMtheeditoria1.ru1.esoftheISO/IECDirectives.Part2(secwww.iso.org/dircctives).MionrigbtS.丽n施腻中栅泅序nsi曲?麻出就时做刑他doc三据R哪ssubjectofanypatentrightsidentifiedduringthedeve1.opmerUW4ie÷wmwVw1.1.beintheIntroductionand/orontheISO1.istofpatentdec1.arationsreceived(seewww.iso.org/pa1.ents).Anytradeusedinthisconstitutenameendorsement.documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationonthevo1.untarynatureofstandards,themeaningofISOspecifictermsand螂tt三UW网副腌Mth等惜用施膈解品tE神船用诺升刷即enc酰帼WingUR1.:www.iso.org/iso/foreword.htm1.展妍楹验叔86忸桶1»3£。吧叫微I雕乐磊A翩魄为ree"Mkchains,chains1.ings.Thissecondeditioncance1.sandrep1.acesthefirstedition(ISO4779:1986),whichhasbeentechnica1.1.yrevised.Themainchangescomparedtothepreviouseditionareasfo1.1.ows:1.imitationofthemateria1.susedtostain1.essstee1.s;correspondingadaptationofthea1.1.oye1.ementsandheattreatment;reductionOfthesizes.Correspondingtothere1.atednomina1.chainsizes；inc1.udingdetai1.ed44nwUebaseforca1.cu1.ationofdimensions,working1.oad1.imitsandmechanica1.requirementsinAnnexA.AJW博加用d哂嫩油t*wstaniiesthiscabd金u11ng(>uWww405啷HveiHbertwhwiWnaHonaIstandardsbody.AChaincomponentsfor1.iftingpurposesForgedeyehookwithpointand1.atchGrade4,stain1.essstee1.,so1.utionannea1.ed1 ScopeConstnictionofgradeso1.utionannea!edstee1.andPreferabIponentinchains1.ingsofwe1.ded-49IMPORTANT-Forotherapp1.ications,e.g.stee1.wireropes1.ingsortexti1.es1.ings,itisimportantthatthehookdesignischeckedtoensureitsfitnessforasafeuse.according1.835.Tab1.e(s1.ingchainsandmechanica1.requirementsaccordingva1.uesTab1.etheWorkingdirectcorre1.ationSee-AftHex-B.Hooksaccordingtothisdocumentareforuseinthetemperaturerange-100to+400.NOTE2Theterm"eyehookwithpointand1.atch*istakenfromISO1837:2003,Figure5.2 Normativereferencesconstitutesrequirements1.atesteditiondocment.referencedreferences,(inc1.udingamendments)app1.ies.app1.ies.stain1.essstee1.ISO3452-1,NOn-destructivetestingPenetranttestingPart1:Genera1.princip1.esTension/compressiontestingmachinesCa1.ibrationandverificationoftheforce-measuringsystemDesn1.3385-1,metro1.ogica1.Characteristicsspecifications(GPS)Dimensiona1.measuringequipmentPart1：bars,rodsandsectionsThisdocumentspecifiestherequirementsforforgedeyehookswithpointand1.atchofgrade4fromstain1.essstee1.and4fromstain1.essforuseso1.utionasNOTE1ThegradeforthehookaccordingtothisdocumentisUkenfromthegradeofthes1.ingchainaccordingtoISOtoBoth2andva1.uesforIhehooks)haveidentica1.scopestofor3.Thus,the1.oad1.imitW1.1.,ofhookstothes1.ingchainisgivenbytheW1.1.andespecia1.1.ythecodesystemontheproductbodyitse1.f.Thegradeofthehook
