BS EN ISO 13787-2003 Thermal insulation products for building equipment and industrial installations - Determination of declared thermal conductivity《建筑设备和工业装置用热绝缘产品 声称的传热性的测定》.pdf

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)