BS EN 12088-1997 建筑用绝热产品.弥散时长期吸水性测定 (Thermal insu

|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN12088:1997TheEuropeanStandardEN12088:1997hasthestatusofaBritishStandardICS91.100.99;91.120.10NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWThermalinsulatingproductsforbuildingapplicationsÐDeterminationoflongtermwaterabsorptionbydiffusion©BSI1997ISBN058028624XBSEN12088:1997AmendmentsissuedsincepublicationAmd.No.DateTextaffectedNationalforewordThisBritishStandardistheEnglishlanguageversionofEN12088:1997.TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteeB/540,Energyperformanceofmaterials,componentsandbuildings,toSubcommitteeB/540/1,EuropeanStandardsforthermalinsulation,whichhastheresponsibilityto:±aidenquirerstounderstandthetext;±presenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;±monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitled`InternationalStandardsCorrespondenceIndex',orbyusingthe`Find'facilityoftheBSIStandardsElectronicCatalogue.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to6,aninsidebackcoverandabackcover.©1997CENÐAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN12088:1997EEUROPEANSTANDARDEN12088NORMEEUROPEÂENNEEUROPAÈISCHENORMJune1997ICS91.100.99Descriptors:Buildings,thermalinsulation,thermalinsulatingmaterials,waterabsorptiontests,diffusion,testspecimen,procedure,computationEnglishversionThermalinsulatingproductsforbuildingapplicationsÐDeterminationoflongtermwaterabsorptionbydiffusionProduitsisolantsthermiquesdestineÂsauxapplicationsdubaÃtimentÐDeÂterminationdel'absorptiond'eauaÁlongtermeÐEssaipardiffusionWaÈrmedaÈmmstoffefuÈrdasBauwesenÐBestimmungderWasseraufnahmedurchDiffusionThisEuropeanStandardwasapprovedbyCENon1997-04-26.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.©BSI1997ForewordThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC88,Thermalinsulatingmaterialsandproducts,thesecretariatofwhichisheldbyDIN.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyDecember1997,andconflictingnationalstandardsshallbewithdrawnatthelatestbyDecember1997.ThisEuropeanStandardisoneofaseriesofstandardswhichspecifytestmethodsfordeterminingdimensionsandpropertiesofthermalinsulatingmaterialsandproducts.ItsupportsaseriesofproductstandardsforthermalinsulatingmaterialsandproductswhichderivefromtheCouncilDirectiveof21December1988ontheapproximationoflaws,regulationsandadministrativeprovisionsoftheMemberStatesrelatingtoconstructionproducts(Directive89/106/EEC)throughtheconsiderationoftheessentialrequirements.ThisEuropeanStandardhasbeendraftedforapplicationsinbuildingsbutitmayalsobeusedinotherareaswhereitisrelevant.InpursuanceofResolutionBT20/1993Revised,CEN/TC88haveproposeddefiningthestandardslistedbelowasaEuropean`package'ofstandards,settingDecember31,1997asthedateofwithdrawal(dow)ofnationalstandardswhichconflictwiththeEuropeanStandardsofthispackage.The`package'ofstandardscomprisesthefollowinggroupofinter-relatedstandardsontestmethodsfordeterminingdimensionsandpropertiesofthermalinsulationmaterialsandproducts,allofwhichcomewithinthescopeofCEN/TC88:EN822ThermalinsulatingproductsforbuildingapplicationsÐDeterminationoflengthandwidthEN823ThermalinsulatingproductsforbuildingapplicationsÐDeterminationofthicknessEN824ThermalinsulatingproductsforbuildingapplicationsÐDeterminationofsquaren