1、BRITISH STANDARD BS EN ISO 13787:2003 Thermal insulation products for building equipment and industrial installations Determination of declared thermal conductivity The European Standard EN ISO 13787:2003 has the status of a British Standard ICS 91.100.60 BS EN ISO 13787:2003 This British Standard w
2、as published under the authority of the Standards Policy and Strategy Committee on 28 April 2003 BSI 28 April 2003 ISBN 0 580 41638 0 National foreword This British Standard is the official English language version of EN ISO 13787:2003. It is identical with ISO 13787:2003. The UK participation in it
3、s preparation was entrusted to Technical Committee RHE/9, Thermal insulating materials, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European
4、 publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all t
5、he necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on t
6、he interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, pages 2 to 22, an inside back c
7、over and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO13787 April2003 ICS91.100.60 Englishversion Thermalinsulationproductsfor
8、buildingequipmentandindustrial installationsDeterminationofdeclaredthermalconductivity (ISO13787:2003) Produitsisolantsthermiquespourlquipementdubtiment etlesinstallationsindustriellesDterminationdela conductivitthermiquedclare(ISO13787:2003) WrmedmmstoffefrdieHaustechnikundfr betriebstechnischeAnla
9、genBestimmungdesNennwertes derWarmeleitfhigkeit(ISO13787:2003) ThisEuropeanStandardwasapprovedbyCENon9October2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsan
10、dbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnot
11、ifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited King
12、dom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO13787:2003EENISO13787:2003(E) 2 Contents page Fore
13、word3 Introduction .4 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions . 5 4 Principlesforthedeterminationofdeclaredthermalconductivity. .5 5 Determinationandverificationofdeclaredthermalconductivity. .6 5.1 Measurementofthermalconductivity 6 5.2 Procedureforverification . 6 AnnexA (informati
14、ve) Verificationbasedoncurvecomparison9 A.1 General9 A.2 Principle 9 A.3 Test9 A.3.1 Measurementofthermalconductivity . .9 A.3.2 Procedureforcomparisonanddecision . .9 AnnexB (informative) Statisticalmethodtoestablishthedeclaredthermalconductivitycurve.11 B.1 General 11 B.2 Symbolsandunits . 11 B.3
15、Establishmentofdeclaredvalues 12 B.3.1 Alargenumberofthermalconductivityresultsareavailable( n50ateachtemperature) 12 B.3.2 Asmallnumberofdataareavailable( n 50) 12 B.4 Verificationofthedeclaredcurve 12 B.5Examples. .13 B.5.1 Establishmentofthedeclaredcurve. 13 B.5.2 Verificationofthedeclaredcurve 1
16、5 AnnexC (informative) Illustrationoftheproceduretoverifythermalconductivity.19 Bibliography 22ENISO13787:2003(E) 3 Foreword Thisdocument(ENISO13787:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC89“Thermal performanceofbuildingsandbuildingcomponents“,thesecretariatofwhichisheldbySIS,incollaborationw
17、ith TechnicalCommitteeISO/TC163“Thermalperformanceandenergyuseinthebuiltenvironment“. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbySeptember2003,andconflictingnationalstandardsshallbewithdrawnatthe latestbySeptember200
18、3. AnnexesA,BandCareinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlan
19、ds,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.ENISO13787:2003(E) 4 Introduction Thisstandardgivestheprocedureforthedeterminationofthedeclaredthermalconductivityofthermalinsulation materialsandproducts,whichareusedfortheinsulationofbuildingequipmentandindustrialinstallation
20、s. Forthisareaofapplicationthethermalconductivityvaluesareusuallyexpressedoverawiderangeof temperatures. Thisstandarddescribestheprocedurenecessaryforthedeterminationofthethermalconductivityvalues,which themanufacturershalldeclare. Thevaluesareexpressedintheformofacurveorintabularformwhichshowstherm
21、alconductivityasafunction oftemperature. 1Scope Thisstandardestablishestheprocedureforthedeterminationandverificationofthedeclaredthermalconductivity asafunctionoftemperatureofthermalinsulatingmaterialsandproductsusedfortheinsulationofbuilding equipmentandindustrialinstallations. Theinformativeannex
22、Balsogivesanoptionalmethodforestablishingthethermalconductivitycurveortablefrom measuredvalues. Thestandardisnotapplicabletothermalinsulatingproductsusedinbuildingenvelopes.Fortheprocedureswhich areusedfortheseproducts,seeISO10456,“ BuildingmaterialsandproductsProceduresfordetermining declaredanddes
23、ignthermalvalues ”. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesep
24、ublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN12667 ThermalperformanceofbuildingmaterialsandproductsDeterminationof thermalresistancebymeansofguardedhotplateandheatfl
25、owmeter methodsProductsofhighandmediumthermalresistance. ENISO7345:1995 ThermalinsulationPhysicalquantitiesanddefinitions(ISO7345:1987). ENISO8497 ThermalinsulationDeterminationofsteadystatethermaltransmission propertiesofthermalinsulationforcircularpipes(ISO8497:1994). prENISO9229:1997 Thermalinsul
26、ationDefinitionsofterms(ISO/DIS9229:1997). ISO8301 ThermalinsulationDeterminationofsteadystatethermalresistanceand relatedpropertiesHeatflowmeterapparatus. ISO8302 ThermalinsulationDeterminationofsteadystatethermalresistanceand relatedpropertiesGuardedhotplateapparatus.ENISO13787:2003(E) 5 3 Termsan
27、ddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninENISO7345:1995,prENISO 9229:1997andthefollowingapply. 3.1 referencemeantemperature meantemperatureselectedforuseasthebasisforphysicalpropertymeasurementandexpressionofdatafor thosematerialswherephysicalpropertieschangewit
28、htemperature 3.2 declaredvalue valuedeclaredbyamanufacturerwhichisderivedfrommeasuredvaluesunderspecifiedconditionsandrules 3.3 declaredthermalvalue expectedvalueofathermalpropertyofabuildingmaterialorproduct assessedfrommeasureddataatreferenceconditionsoftemperatureandhumidity; givenforastatedfract
29、ionandconfidencelevelaccordingtothedeterminationmethodinthisstandard; correspondingtoareasonableexpectedservicelifetimeundernormalconditions. NOTE Thedeclaredthermalvalueincludestheeffectsofageinganddispersioninthemeasuredvalues. 3.4 declaredthermalconductivitycurve curvegivingthethermalconductivity
30、atdifferenttemperaturesforamaterialorproductconditionedinequilibrium withastandardatmosphere(23C,50%relativehumidity)basedonthedeclaredthermalvalues 4 Principlesforthedeterminationofdeclaredthermalconductivity Themanufacturershallpresenthisproposeddeclaredthermalconductivityofthematerialorproductint
31、heformof acurveasafunctionofthemeantemperatureoratablewithanumberofvaluesinaccordancewith5.1. Theproductshallthenbesubjectedtoatestaccordingtoclause5,withtestspecimensrepresentativeofthe product. Ifthetestispassed,theproposeddeclaredthermalconductivitycurveortablebecomesthedeclaredthermal conductivi
32、tycurveortable. NOTE1 AnalternativeproceduretotheonegiveninthestandardisgiveninannexA. NOTE2 AnoptionalstatisticalmethodtoestablishthedeclaredthermalconductivitycurveisgiveninannexB.ENISO13787:2003(E) 6 5 Determinationandverificationofdeclaredthermalconductivity 5.1 Measurementofthermalconductivity
33、Thetestspecimensshallbeaged,ifnecessary,beforemeasurementsaremade.Asanalternative,acorrection factorforageingshallbeapplied. NOTE Ageingproceduresarefoundinproductspecifications,whererelevant. MeasurementsshallbecarriedoutinaccordancewithISO8301,ISO8302orEN12667forflattestspecimensand ENISO8497forcy
34、lindricaltestspecimens. Thetemperaturedifferencebetweenthehotandcoldfacesshallrangefrom10Kto40Kforflattestspecimens. Thetemperaturedifferenceshallbechosentomaximizetheaccuracyofthemeasurement.Forcylindrical specimens,testedinaccordancewithENISO8497,theserequirementsontemperaturedifferencedonotapply,
35、 butthetemperaturedifferenceshallnotbesmallerthan10K. Measurementsshallbemadeatthreedifferentmeantemperaturesatleast. Formeantemperaturesupto500C,thecurvedeterminedinthetestshallbebaseduponmeasurementsat intervalsofamaximumof100K,overthewholeservicetemperaturerangestatedbythemanufacturer. Thermalcon
36、ductivityshallalsobemeasuredattemperaturesclosetoinflexionpointsorotherirregularitiesofthe curve. Formeantemperaturesgreaterthan500C,thecurvedeterminedinthetestshallbebaseduponmeasurements atintervalsofamaximumof200K. Noextrapolationoftestresultsbeyondthemeasuredtemperaturerangeispermitted.Themeasur
37、edthermal conductivitiesshallberoundeduptothenearest0,001W/(m K). Theresultsshallbeexpressedeitherbyatemperature/thermalconductivitycurveorbyatable.Thecomparison withtheproposedcurveortableisonlymadeatthetemperaturesofmeasurement. 5.2 Procedureforverification Selectthreedifferentsamples.Takethetests
38、pecimensfromthesesamplesatrandom,asrequired. Measurethethermalconductivityofthetestspecimenfromthefirstsampleinaccordancewiththemethod describedin5.1. Comparetheresultsofthemeasurementswiththevaluesobtainedfromtheproposedcurveortable. Ifthemeasuredvaluesarealllessthanorequaltothethermalconductivitie
39、sderivedfromtheproposedcurve ortable,thetestispassedandtheproposedcurveortablebecomesthedeclaredcurveortable. Ifoneormoreofthemeasuredvaluesexceedsthecorrespondingthermalconductivityoftheproposedcurveor tableby10%ormore,thetesthasfailed. Iftherearemeasuredvaluesabovethevaluesontheproposedcurveorinth
40、etablebutnoneofthemexceeds thecorrespondingthermalconductivityby10%,thentwonewtestspecimensshallbemeasuredinaccordance withthemethoddescribedin5.1,onespecimenbeingtakenfromeachofthetworemainingsamples. Fortemperatures below100C,measurethethermalconductivitiesofthesecondandthirdspecimenat temperature
41、swithin5Kofthevaluesmeasuredforthefirstspecimen.Increasethisto10Kfortemperatures above100C.ENISO13787:2003(E) 7 Ifnoneofthenewmeasurementsexceedstheproposedcurveortableby10%ormore,themeasuredthermal conductivitiesshallbeconvertedtothetemperaturesatwhichthemeasurementsforthefirstcurveweremade, usingt
42、heslopeofthefirstcurvetomaketheconversion. Resultsofthemeasurementsabovetheproposedcurveorthevalueinthetableby10%ormoreshallconstitutea failureofthetest. Calculatethevaluesofthermalconductivityatthecorrespondingtemperaturesbycalculatingthemeanofthethree valuesmeasuredorconvertedateachtemperature. If
43、allthesenewmeanvaluesarelowerthanorequaltothecorrespondingthermalconductivitiesofthe proposeddeclaredcurve,thetesthaspassed,inwhicheventtheproposeddeclaredcurveortablebecomes thedeclaredcurveortable. Ifoneormoreofthenewmeanvaluesishigherthanthecorrespondingthermalconductivityoftheproposed declaredcurveortable,thetesthasfailed. TheverificationprocedureisdescribedintheflowchartinFigure1andillustratedinannexC.ENISO13787:2003(E) 8 Figure1FlowchartforverifyingthethermalconductivityENISO13787:2003(E) 9 AnnexA (informative)
