1、BRITISH STANDARD BS EN 13793:2003 Thermal insulating products for building applications Determination of behaviour under cyclic loading The European Standard EN 13793:2003 has the status of a British Standard ICS 91.100.60 BS EN 13793:2003 This British Standard, was published under the authority of
2、the Standards Policy and Strategy Committee on 20 November 2003 BSI 20 November 2003 ISBN 0 580 42961 X National foreword This British Standard is the official English language version of EN 13793:2003. The UK participation in its preparation was entrusted by Technical Committee B/540, Energy perfor
3、mance of materials, components and buildings, to Subcommittee B/540/1, European Standards for thermal insulation, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implem
4、ent international or European 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
5、 not purport to include all the 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
6、 committee any enquiries on the 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 title page, pages
7、2 to 11 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13793 September2003 ICS91.100.60 Englishversion Thermalinsulatingprodu
8、ctsforbuildingapplications Determinationofbehaviourundercyclicloading Produitsisolantsthermiquesdestinsauxapplicationsdu btimentDterminationducomportementsouscharge cyclique WrmedmmstoffefrdasBauwesenBestimmungdes VerhaltensunterzyklischerBelastung ThisEuropeanStandardwasapprovedbyCENon1August2003.
9、CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCE
10、Nmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria
11、,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:r
12、uedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN13793:2003EEN13793:2003(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Principle5 5 Apparatus .5 5.1 Testingmachine. 5 5.2 M
13、easurementofdisplacement . 5 5.3 Measurementofforce 6 5.4 Recordingdevice .6 6 Testspecimens 6 6.1 Dimensionsoftestspecimens .6 6.2 Numberoftestspecimens 6 6.3 Preparationoftestspecimens. .7 6.4 Conditioningoftestspecimens .7 7 Procedure .7 7.1 Testconditions . .7 7.2 Stressselection .7 7.3 Frequenc
14、yselection . .7 7.4 Numberofloadcycles. 8 7.5 Testprocedure .8 8 Calculationandexpressionofresults. 8 9 Accuracyofmeasurement. .10 10 Testreport 10EN13793:2003(E) 3 Foreword Thisdocument(EN13793:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC88,“Thermalinsulating materialsandproducts“,thesecretariato
15、fwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyMarch2004,andconflictingnationalstandardsshallbewithdrawnatthelatestby March2004. ThisEuropeanStandardisoneofaseriesofstandardswhichspecifytestmethodsford
16、eterminingdimensionsand propertiesofthermalinsulatingmaterialsandproducts.Itsupportsaseriesofproductstandardsforthermal insulatingmaterialsandproductswhichderivefromtheCouncilDirectiveof21December1988onthe approximationoflaws,regulationsandadministrativeprovisionsoftheMemberStatesrelatingtoconstruct
17、ion products(Directive89/106/EEC)throughtheconsiderationoftheessentialrequirements. ThisEuropeanStandardhasbeendraftedforapplicationsinbuildingsbutmayalsobeusedinotherareaswhereit isrelevant. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesarebou
18、ndtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN13793:2003(E) 4 1Scope ThisEuropeanStandardspecifiesequipmentandpr
19、oceduresfordeterminingbehaviouroftestspecimensunder cyclicloadingconditions.Itisapplicabletothermalinsulatingproducts. Theselectionoftheconditionsofthetestshallbederivedfromthespecificrequirementsoftheintended application. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreferen
20、ce,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedref
21、erencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN826, ThermalinsulatingproductsforbuildingapplicationsDeterminationofcompressionbehaviour. EN12085,ThermalinsulatingproductsforbuildingapplicationsDeterminationoflineardimensionsoftest specimens. 3 Termsanddefinitions F
22、orthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply. 3.1 thickness, d s initialthicknessofthetestspecimen 3.2 compressivestress, s c compressiveforcereferredtotheinitialareaofthecrosssectionofthetestspecimen s min :Lowerstresslevelofoneloadcycle; s max :Upperstresslevelofoneload
23、cycle. 3.3 deformation, X reductioninthicknessofthetestspecimenequalto X i X 0 bothfor X i,min and X i,max X i,min :Reductioninthicknessofthetestspecimenunderthelowerstresslevel, s min ,atagivennumberofload cycles,i; X i,max :Reductioninthicknessofthetestspecimenundertheupperstresslevel, s max ,atag
24、ivennumberof loadcycles,i. 3.4 relativedeformation, e quotientofthedeformation Xofthetestspecimenanditsthickness d s 3.5 loadcycle cycleduringwhichthecompressiveforceisappliedtothetestspecimen,startingat s min ,tobeincreasedto s max andthenreducedbackto s min ,sothatthecycleofloadingandunloadingdesc
25、ribesatypeofsinewave,where s min isthebottomand s max isthetopofthewaveEN13793:2003(E) 5 4Principle Theverticaldeformationoftestspecimenssubjectedtorepetitiveloadcyclesisdetermined. 5Apparatus 5.1 Testingmachine Atestingmachineappropriatefortherangeofforceanddisplacementinvolvedwithtworigid,polished
26、,squareor circularplaneparallelplatesofwhichthelengthofoneside(orthediameter)isatleastaslargeasthetest specimenside(ordiagonal)tobetested.Oneoftheplatesshallbefixedandtheothermovablewithacentrally positionedballjoint,ifappropriate,toensurethatonlyaxialforceisappliedtothetestspecimen.Themovable plate
27、shallbecapableoffollowingasinusoidalwaveformdisplacementinaccordancewiththeconditionslaiddown inclause7andillustratedinFigure1. NOTE Theloadcycleshouldbeconsideredasasinusoidalwaveformifthedeviationoftheactualcurvecomparedtothe theoreticalsinecurveateverypointfollowingthetimeaxisdoesnotexceed5%ofthe
28、durationofonecycle. Key 1Displacement 2Time Figure1Illustrationofaloadcycle 5.2 Measurementofdisplacement Deviceforthemeasurementofthedisplacementfittedtothecompressiontestingmachinewhichallowscontinuous measurementofthedisplacementofthemovableplateorofthedistancebetweenthetwoplatesandwhich permitsr
29、eadingto5%or0,1mm,whicheveristhesmaller(see5.3).EN13793:2003(E) 6 5.3 Measurementofforce Sensorfittedtooneofthemachineplatestomeasuretheforceproducedbythereactionofthetestspecimenupon theplates.Thissensorshallbesuchthatitsowndeformationduringthecourseofthemeasuringoperationis negligiblecomparedwitht
30、hatbeingmeasuredorifnot,itshallbetakenintoaccountbycalculation.Thesensor shallallowthecontinuousmeasurementoftheforcepermittingreadingto3%. 5.4 Recordingdevice Deviceforthesimultaneousrecordingoftheforce, F ,andthedisplacement, X,whichprovidesacurveof Fasa functionof X. NOTE Itismostlikelythatonlyth
31、osemachines,whichincorporateahighprecisionalignedloadingframewithaservo hydraulicsystemcontrolandacomputercontrolledactuatorwillcomplywiththerequiredlevelofaccuracy. Themeasuringdevicesfordisplacementandforcearelikelytocompriseelectronictransducersandsensors.In ordertoachievethemaximumlevelofaccurac
32、y,itisdesirablethatalltestcontrolling,datagenerationanddata management(includingalloutputoftablesandplots)areconcentratedinonecomputersystem. 6 Testspecimens 6.1 Dimensionsoftestspecimens Thetestspecimensshallbeattheoriginalproductthickness.Thewidthofthetestspecimensshallnotbeless thanthethickness.P
33、roductswithintegrallymouldedskinswhichareretainedinuseshallbetestedwiththese skinsintact. Testspecimensshallnotbelayeredtoproduceagreaterthicknessfortesting. Testspecimensshallbesquarelycutandsquarewithrecommendedcrosssectionareasasfollows: 50mm50mmor 100mm100mmor 150mm150mmor 200mm200mmor 300mm300m
34、m. Thechoiceofdimensionstobeusedshallbeasspecifiedintherelevantproductstandard. IntheabsenceofaproductstandardoranyotherEuropeantechnicalspecificationthedimensionsoftest specimensmaybeagreedbetweenparties. ThelineardimensionsshallbedeterminedinaccordancewithEN12085withalimitdeviationof0,5%. Thetoler
35、anceonparallelismandflatnessbetweenthetwofacesofthetestspecimenshallnotbegreaterthan0,5 %ofthespecimensidewithamaximumof0,5mm. Ifthetestspecimensarenotflat,theyshallbegroundflatoranappropriatelevellinglayershallbeappliedto preparethesurfaceforthetest.Nosignificantdeformationshalloccurinthelevellingl
36、ayerduringthetest. Incasethatagypsumlevellinglayerisused,thedeterminationofthedimensionsshalloccurpriortothe applicationofthelayers. NOTE Theaccuracyofthetestresultisreducedifthetestspecimenshaveathicknessoflessthan20mm. 6.2 Numberoftestspecimens Thenumberoftestspecimensshallbeasspecifiedinthereleva
37、ntproductstandard.Intheabsenceofsucha specification,fivetestspecimensshallbeusedforeachstressselected.EN13793:2003(E) 7 NOTE IntheabsenceofaproductstandardoranyotherEuropeantechnicalspecificationthenumberoftestspecimens maybeagreedbetweenparties. 6.3 Preparationoftestspecimens Thetestspecimensshallb
38、ecutsothattheydonotincludeproductedges.Thetestspecimensshallbeprepared bymethodsthatdonotchangetheoriginalstructureoftheproduct.Anyskins,facingsand/orcoatingsshallbe retained. NOTE Specialmethodsofpreparation,whenneeded,aregivenintherelevantproductstandardoranyotherEuropean technicalspecification. 6
39、.4 Conditioningoftestspecimens Thetestspecimensshallbestoredforatleast6hat(235) C.Incaseofdisputetheyshallbestoredat (232) Cand(505)%relativehumidity,forthetimespecifiedintherelevantproductstandard,foraminimumof 6h. 7Procedure 7.1Test conditions Thetestshallbecarriedoutat(232) C.Incaseofdisputeitsha
40、llbecarriedoutat(232) Cand(505)% relativehumidity. 7.2Stress selection Thetestiscarriedoutatoneormoredifferentstresses. Thedifferentstresses, s max ,forthecyclicloadinvestigationshallbebasedoneitherthecompressivestrength, s m , orthecompressivestressat10%deformation, s 10 ,measuredinaccordancewithEN
41、826,andshallbecalculated asfollows: s max =0,15 s m or s max =0,15 s 10 s max =0,20 s m or s max =0,20 s 10 s max =0,25 s m or s max =0,25 s 10 s max =0,30 s m or s max =0,30 s 10 s max =0,35 s m or s max =0,35 s 10 Ifappropriateothervaluesof s max maybechosen. Thecorrespondingstresses s min shallbe
42、5%oftherespective s max . 7.3 Frequencyselection Thetestiscarriedoutatafrequencywithintherangeof0,5Hzto10Hz. Thefrequencyshallbeselectedsothatanypossibleincreaseofthetemperatureinthecenterofthetestspecimen willnotaffectthetestresult. Theloadcycle,followingasinusoidalwaveform,isappliedatarequirednumb
43、erofcyclespersecond.The frequencyofthewaveshallbegivenintherelevantproductstandardormaybeagreeduponbetweenparties withintherangegivenabove. NOTE Differentfrequenciescanleadtodifferentresults.EN13793:2003(E) 8 7.4 Numberofloadcycles Thenumberofloadcyclesshallbesuchthat: therelativedeformationofthetestspecimen,atthemaximumstress,reaches5%or failureif
