ISO／FDIS 11357-8：2020.docx

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1、FINA1DRAFTINTERNATIONA1ISO/FDISSTANDARD11357-8ISOTC61/SC5Secretariat:DINVotingbeginson:202310-29Votingterminateson:2023-12-24P1asticsDifferentia1scanningca1orimetry(DSC)Part8:Determinationoftherma1conductivityP1astiquesAna1yseCa1orimetriquedifferentie11e(DSC)一Partie8:Determinationde1aconductivitythe

2、rmiqueISO/CENPARA11E1PROCESSINGReferencenumberISO/FDIS11357-8:2023(E)ISO2023RECIPIENTSOFTHISDRAFTAREINVITEDTOSUBMIT.WITHTHEIRCOMMENTS.NOTIFICATIONOFANYRE1EVANTPATENTRIGHTSOFWHICHTHEYAREAWAREANDTOPROVIDESUPPORTINGDOCUMENTATIONINADDITIONTOTHEIREVA1UATIONASbeingAcceftab1eforindustria1techno1ogica1.COMM

3、ERCIA1ANDUSERPURPOSES.DRAFTINTERNATIONA1STANDARDSMAYONOCCASIONHAVETOBECONSIDEREDINTHE1IGHTOFTHEIRPOTENTIA1TOBECOMESTAN.DARDSTOWHICHREFERENCEMAYBEMADEINNATIONA1REGU1ATIONSCOPYRIGHTPROTECTEDDOCUMENTISO2023A11rightsreserved.Un1essotherwisespecified,orrequiredinthecontextofitsimp1ementation,nopartofthis

4、pub1icationmaybereproducedoruti1izedotherwiseinanyformorbyanymeans,e1ectronicormechanica1,inc1udingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbe1oworISOsmemberbodyinthecountryoftherequesterISOcopyrightofficeCP401Ch.d

5、eB1andonnet8CH1214Vernier;GenevaPhone:*41227490111Emai1:copyrightiso.orgWebsite:www.iso.orgPub1ishedinSwitzer1andPageContentsForewordIntroductionScopeNormativereferencesTermsanddenitionsPrincip1eAppa5.1ratusandsubstancesDSCinstrument-一一225.25.3Mp1tingWtIhWfAnCe25.4ProtectiveIaCqUer35.51engthmeasurin

6、gdeviceF-e-HE1r-r3Specimens36.1Geometry36.2NUinI)erandSarTPIIng3ConditioningCa1ibration9.1 PreParationofcrucib1es.9.2 Useoftherma1contactsubstances9.3 Measurementofme1tingsubstance9.3.2 Distributionofme1tingsubstanceoncrucib1eground.9.3.3 Measurementofthes1opeoftheme1tingcurvewithouttestspecimen9.3.

7、4 Insertionoftestspecimen9.3.5 Measurementofthes1opeoftheme1tingcurvewithtestspecimen.9.4 Eva1uationofthes1opeofthepeaksoftheme1tingsubstance1011Ca1cu1ationoftherma1conductivityService1ifeofcrucib1esuponusingga11iumasme1tingsubstance7712PrPriqinI1Andbias713Testreport7AnnexA(informative)Inter1aborato

8、rydeterminationoftherma1conductivitymeasuredbyBib1iographyForewordISO(theInternationa1OrganizationforStandardization)isawor1dwidefederationofnationa1standardsbodies(ISOmemberbodies).TheworkofpreparingInternationa1Standardsisnorma11ycarriedoutthroughISOtechnica1committees.Eachmemberbodyinterestedinas

9、ubjectforwhichatechnica1committeehasbeenestab1ishedhastherighttoberepresentedonthatcommittee,internationa1organizations,governmenta1andnon-governmenta1,in1iaisonwithISO,a1sotakepartinthework.ISOco11aboratesc1ose1ywiththeInternationa1E1ectrotechnica1Commission(IEC)ona11mattersofe1ectrotechnica1standa

10、rdization.Theproceduresusedtodeve1opthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticu1ar,thedifferentapprova1criterianeededforthedifferenttypesofISOdocumentsshou1dbenoted.Thisdocumentwasdraftedinaccordancewiththeeditoria1ru1esoftheISO/IECDirective

11、s,Part2(seeWWW,isoQigdiecUves).Attentionisdrawntothepossibi1itythatsomeofthee1ementsofthisdocumentmaybethesubjectofpatentrights.ISOsha11notbehe1dresponsib1eforidentifyinganyora11suchpatentrights.Detai1sofanypatentrightsidentifiedduringthedeve1opmentofthedocumentwi11beintheIntroductionand/orontheISO1

12、istofpatentdec1arationsreceived(seeWWW.iso.org/patents).Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.Foranexp1anationofthevo1untarynatureofstandards,themeaningofISOspecifictermsandexpressionsre1atedtoconformityassessment,aswe11asinformatio

13、naboutISOsadherencetotheWor1dTradeOrganization(WTO)princip1esintheTechnica1BarrierstoTrade(TBT),seewww.iso.org/iso/foreword.htm1.ThisdocumentwaspreparedbyTechnica1CommitteeISO/TC61,P1astics,SubcommitteeSC5,Physica1chemica1properties,inco11aborationwiththeEuropeanCommitteeforStandardization(CEN)Techn

14、ica1CommitteeCEN/TC249,P1astics,inaccordancewiththeAgreementontechnica1cooperationbetweenISOandCEN(ViennaAgreement).A1istofa11partsintheISO11357seriescanbefoundontheISOwebsite.Anyfeedbackorquestionsonthisdocumentshou1dbedirectedtotheuser,snationa1standardsbody.Acomp1ete1istingofthesebodiescanbefound

15、atWWW.iso.org/members.htm1.IntroductionTheadvantageofusingDSCformeasuringthetherma1conductivityofp1asticsisthatwiththesameinstrumenta1sothespecificheatcapacitycanbeobtained.Thisenab1esthedeterminationofthetherma1diffusivitybydividingthetherma1conductivitybythedensityandspecificheatcapacity.Inaddition,DSCinstrumentsarewide1yusedandavai1ab1eina1mosta11testinstitutesand1abs.Hence,measurementsoftherma1conductivitycanbedonewithoutneedforprocurementofanadditiona1instrument.P1asticsDifferentia1scanningca1orimetry(DSC)