1、Designation:D594196StandardTestMethodforDeterminingtheIzodImpactStrengthofPlastics1Thisst a ndar disissuedundert hefixeddesignationD5941;t henum berim m ediat elyfollowingt hedesignat ionindicat est heyearoforiginaladopt ionor,int heca seofrevision,t heyearoflastr evision.Anum berinpar enthesesindic
2、at est heyea roflastreapproval.Asuperscriptepsilon(e)indica t esanedit or ialchangesincet helastrevisionorreapproval.1.Scope1.1Thist estm et hodcoversaprocedurefordet erm iningt heIzodim pa ctst rengt hofpla st icsunderdefinedcondit ions.Anum berofdifferentt ypesofspecim ena ndt estconfigura t ionsa
3、 redefined.Differentt estpa ra m etersa respecifieda ccordingt ot het ypeofm a t eria l,t ypeoft estspecim en,a ndt ypeofnot ch.1.2Theprocedureisusedforinvest iga t ingt hebeha viorofspecifiedt ypesofspecim ensundert heim pa ctcondit ionsdefineda ndforest im a t ingt hebrit t lenessort oughnessofspe
4、cim enswithint helim it a t ionsinherentint het estcondit ions.1.3Theprocedureissuit a bleforusewit ht hefollowingra ngeofm a t eria ls:1.3.1R igidt herm opla st icsm oldinga ndext rusionm a t eria ls,includingfilleda ndreinforcedcom poundsina ddit iont ounfilledt ypes;rigidt herm opla st icssheet;1
5、.3.2Rigidther moset tingmoldingmater ials,includingfilleda ndreinfor cedcom pounds;rigidt herm oset t ingsheet,includingla m ina t es;1.3.3Fiber-reinforcedt herm oseta ndt herm opla st icscom-posit esincorpora t ingunidirect iona lornonunidirect iona lrein-forcementssucha sm a t,wovenfa brics,wovenr
6、 ovings,choppedst ra nds,combina tiona ndhybridreinforcem ent s,rov-ingsa ndm illedfibers;sheetm a defrompre-im pregna t edm a t eria ls(prepregs).1.3.4Therm ot ropicliquid-cryst a lpolym ers.1.4Theprocedureisnotnorm a llysuit a bleforusewit hrigidcellula rm a t eria lsa ndsa ndwichst ruct urescont
7、a iningcellula rm a t eria l.Also,not chedspecimensa renotnorm a llyusedforlong-fiber-reinforcedcom posit esorfort herm ot ropicliquid-cryst a lpolym ers.1.5Theprocedureisa da pt edtot heuseofspecim enst ha tm a ybeeit herm oldedt ot hechosendim ensions,m a chinedfromt hecent ra lport ionofasta nda
8、rdm ult ipurposet estspecim en(seeISO3167(Specifica t ionD5936),orm a chinedfromfinisheda ndsem ifinishedproduct ssucha sm oldings,la m ina t es,a ndext rudedorca stsheet.1.6Theprocedurespecifiespreferreddim ensionsfort het estspecim en.Test st ha ta reconduct edonspecim ensofdifferentdim ensionsa n
9、dnotches,oronspecim enst ha ta reprepa redunderdifferentcondit ions,m a yproduceresult st ha ta renotcom pa ra ble.Ot herfa ct ors,sucha st heenergyca pa cit yoft hependulum,it sim pa ctvelocit y,a ndt hecondit ioningoft hespecim ens,ca na lsoinfluencet heresult s.Consequent ly,whencom pa ra t iveda
10、 t aa rerequired,t hesefa ct orsm ustbecont rolleda ndrecordedca refully.1.7Theprocedureshouldnotbeuseda sasourceofda t afordesignca lcula t ionsofcom ponent s.Infor ma t iononthet ypica lbeha viorofam a t eria lca nbeobt a ined,however,byt est inga tdifferentt em pera t ures,byva ryingt henot chra
11、diusort het hick ness,orbot h,a ndbyt est ingspecim ensprepa redunderdifferentcondit ions.1.8Thist estm et hodisident ica lt oISO180.Thist estm et hodiscom pa ra blet oTestMet hodD256,butneit hert estm et hodshouldbesubst it ut edfort heot her.Thetwot estm et hodsm a ydifferwit hrespectt ot estspeci
12、m endim ensions,t estspecim encondit ioning,t estequipment,t est ingcondit ions,et c.Thet wot estm et hodsm a ynotgivet hesa m eresult s.1.9Theva luesst a t edinSIunit sa r et oberega rdeda st hest a nda rd.Theva luesgiveninpa renthesesa reforinform a t iononly.1.10Thi sstan darddoesn otpurporttoadd
13、ressallofth esafetyc on c ern s,i fan y,assoc i atedw i thi tsuse.Iti sth erespon si bi li tyoftheuserofthi sstan dardtoestabli shappro-pri atesafetyan dhealthprac ti c esan ddetermi n etheapplica-bi li tyofregulatoryli mi tati on spri ortouse.2.Refer encedDocument s2.1ASTMStan dards:D256TestMet hod
14、forDet erm iningt hePendulumIm pa ctR esist a nceofNot chedSpecim ensofPla st ics2D5936SpecificationforMult ipur poseTestSpecimensUsedforTest ingPla st ics3D5939Pra ct iceforPr epa ringMult ipurposeTestSpecim ensa ndBa rsofTherm opla st icsbyInject ionMoulding3D5940Pra ct iceforPrepa ringSm a llPla
15、t eTestSpecim ensofTherm opla st icsbyInject ionMoulding32.2ISOStan dards:4ISO180Det erm ina t ionofIzodIm pa ctSt rengt hISO291:1977Pla st icsSt a nda rdAt m ospheresforCondi-t ioninga ndTest ingISO293:1986PlasticsCompressionMouldingTestSpecim ensofTherm opla st icMa t eria ls1Thistestm et hodisund
16、ert hejurisdict ionofASTMCom m it t eeD-20onPlast icsandist hedirectr esponsibilit yofSubcom m it t eeD20.61onUSATechnicalAdvisoryGrou pforISO/TC61onPlast ics.Curr entedit iona ppr ovedJune10,1996.PublishedAugust1996.2An n ualBookofASTMStan dards,Vol08.01.3An n ualBookofASTMStan dards,Vol08.03.4AvailablefromAm er icanNat iona lSt andar dsInst it ute,11W.42ndSt.,13t hFloor,NewYork,NY10036.1AMERICANSOCIETYFORTESTINGA NDMATERIALS100BarrHarborDr.,WestConshohocken,PA19428Reprint edfromtheAnnualBookof