【英文标准名称】:Plastics-Smokegeneration-Determinationofopticaldensitybyasinglechambertest
【原文标准名称】:塑料.烟雾产生.用单燃烧室试验测定光密度
【标准号】:BSENISO5659-2-1999
【标准状态】:作废
【国别】:英国
【发布日期】:1999-01-15
【实施或试行日期】:1999-01-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Definition;Definitions;Determination;High-temperaturetesting;Materials;Opticaldensity;Plastics;Single-chambertests;Smokedevelopment;Testmaterial;Testspecimens;Testing;Testingdevices
【摘要】:1ThispartofISO5659specifiesamethodofmeasuringsmokeproductionfromtheexposedsur-faceofspecimensofessentiallyflatmaterials,com-positesorassembliesnotexceeding25mminthicknesswhenplacedinahorizontalorientationandsubjectedtospecifiedlevelsofthermalirradianceinaclosedcabinetwithorwithouttheapplicationofapilotflame.Thismethodoftestisapplicabletoallplasticsandmayalsobeusedfortheevaluationofothermaterials(e.g.rubbers,textile-coverings,paintedsurfaces,woodandotherbuildingmaterials).2Valuesofopticaldensitydeterminedbythistestarespecifictothespecimenorassemblymaterialintheformandthicknesstested,andarenottobeconsideredinherent,fundamentalproperties.3Thetestisintendedforuseinresearchandde-velopmentandnotprimarilyasabasisforratingsforbuildingcodesorotherpurposes.Nobasisisprovidedforpredictingthedensityofsmokewhichmaybegeneratedbythematerialsuponexposuretoheatandflameunderotherexposureconditions,norhasanycorrelationbeenestablishedwithmeasurementsde-rivedfromothertestmethods.Thefactthatthistestprocedureexcludestheeffectofirritantsontheeyeshouldalsobetakenintoac-countwhenapplyingthetestresults.4Itisemphasizedthatsmokeproductionfromamaterialvariesaccordingtotheirradianceleveltowhichthespecimenisexposed.Inmakinguseoftheresultsofthismethod,itshouldbeborneinmindthattheresultsarebasedonexposuretothespecificirradiancelevelsof25kW/mand50kW/m.
【中国标准分类号】:G31
【国际标准分类号】:13_220_50;83_080_01
【页数】:40P;A4
【正文语种】:英语