资源描述：
《EN ISO 7231-1998 泡沫柔性聚合材料.恒定压降下的气流值估计法》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、BRITISHSTANDARDBSENISO7231:1998Polymericmaterials,cellularflexible—Methodofassessmentofairflowvalueatconstantpressure-dropTheEuropeanStandardENISO7231:1997hasthestatusofaBritishStandardICS83.100LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,MonApr1610:53:31GMT+00:002007,Uncontrolle
2、dCopy,(c)BSIBSENISO7231:1998NationalforewordThisBritishStandardistheEnglishlangaugeversionofENISO7231:1997.ItisidenticalwithISO7231:1984.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteePRI/24,Testingofrigidandflexiblecellularmaterials,whichhastheresponsibilityto:—aidenquirerstounde
3、rstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoit
4、ssecretary.Cross-referencesAttentionisdrawntothefactthatCENandCENELECStandardsnormallyincludeanannexwhichlistsnormativereferencestointernationalpublicationswiththeircorrespondingorEuropeanpublications.TheBritishStandardswhichimplementtheseinternationalorEuropeanpublicationsmaybefoundintheBSIStandard
5、sCatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Find”facilityoftheBSIStandardsElectronicCatalogue.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBriti
6、shStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,pagesiandii,theENISOtitlepage,page2,theISOtitlepage,pageii,pages1to3andabackcover.Thisstandardhasbeenupdated(seecopyrightdate)andmayhavehadamendmentsincorporated.Thiswillbein
7、dicatedintheamendmenttableontheinsidefrontcover.ThisBritishStandard,havingbeenpreparedundertheAmendmentsissuedsincepublicationdirectionoftheSectorBoardformaterialsandChemicals,waspublishedundertheAmd.
