JIS K7242-2-2008 塑料.烟雾的产生.第2部分:使用单室试验测定光密度
作者:标准资料网
时间:2024-05-20 14:02:47
浏览:9013
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Plastic--Smokegeneration--Part2:Determinationofopticaldensitybyasingle-chambertest
【原文标准名称】:塑料.烟雾的产生.第2部分:使用单室试验测定光密度
【标准号】:JISK7242-2-2008
【标准状态】:现行
【国别】:日本
【发布日期】:2008-09-20
【实施或试行日期】:2008-09-22
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonChemicalProducts
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:1.1ThisStandardspecifiesamethodmeasuringsmokeproductionfromtheexposedsurfaceofspecimensofessentiallyflatmaterials,compositesorassembliesnotexceeding25mminthicknesswhenplacedinahorizontalorientationandsubjectedtospecifiedlevelsofthermalirradianceinaclosedsinglechamber(hereafterreferredtoas"chamber")withorwithouttheapplicationofapilotflame.Thismethodoftestisap-plicabletoallplasticsandmayalsobeusedfortheevaluationofothermaterials(e.g.rubbers,textile-coverings,paintedsurfaces,woodandothermaterials).1.2Itisintendedthatthevaluesofopticaldensitydeterminedbythistestbetakenasspecifictothespecimenorassemblymaterialintheformandthicknesstested,andarenottobeconsideredinherent,fundamental,properties.1.3Thetestisintendedprimarilyforuseinresearchanddevelopmentandinfiresafetyengineeringofbuildings,trains,ships,etc.,andnotasabasisforratingsforbuildingcodesorotherpurposes.Nobasisisprovidedforpredictingthedensityofsmokethatmaybegeneratedbythematerialsuponexposuretoheatandflameunderother(actual)exposureconditions,norisanycorrelationestablishedwithmeasurementsderivedfromothertestmethods.Thistestprocedureexcludestheeffectofirritantsontheeye.NOTE:Thistestprocedureaddressesthelossofvisibilityduetosmokedensity,whichgenerallyisnotrelatedtoirritancypotency,asexplainedinISO5659-1.1.4Itisemphasizedthatsmokeproductionfromamaterialvariesaccordingtotheirradianceleveltowhichthespecimenisexposed.Inmakinguseoftheresultsofthismethod,itshouldbeborneinmindthattheresultsarebasedonexposuretothespe-cificirradiancelevelsof25kW/mand50kW/m.
【中国标准分类号】:G32
【国际标准分类号】:13_220_40;83_080_01
【页数】:34P;A4
【正文语种】:日语
【原文标准名称】:塑料.烟雾的产生.第2部分:使用单室试验测定光密度
【标准号】:JISK7242-2-2008
【标准状态】:现行
【国别】:日本
【发布日期】:2008-09-20
【实施或试行日期】:2008-09-22
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonChemicalProducts
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:1.1ThisStandardspecifiesamethodmeasuringsmokeproductionfromtheexposedsurfaceofspecimensofessentiallyflatmaterials,compositesorassembliesnotexceeding25mminthicknesswhenplacedinahorizontalorientationandsubjectedtospecifiedlevelsofthermalirradianceinaclosedsinglechamber(hereafterreferredtoas"chamber")withorwithouttheapplicationofapilotflame.Thismethodoftestisap-plicabletoallplasticsandmayalsobeusedfortheevaluationofothermaterials(e.g.rubbers,textile-coverings,paintedsurfaces,woodandothermaterials).1.2Itisintendedthatthevaluesofopticaldensitydeterminedbythistestbetakenasspecifictothespecimenorassemblymaterialintheformandthicknesstested,andarenottobeconsideredinherent,fundamental,properties.1.3Thetestisintendedprimarilyforuseinresearchanddevelopmentandinfiresafetyengineeringofbuildings,trains,ships,etc.,andnotasabasisforratingsforbuildingcodesorotherpurposes.Nobasisisprovidedforpredictingthedensityofsmokethatmaybegeneratedbythematerialsuponexposuretoheatandflameunderother(actual)exposureconditions,norisanycorrelationestablishedwithmeasurementsderivedfromothertestmethods.Thistestprocedureexcludestheeffectofirritantsontheeye.NOTE:Thistestprocedureaddressesthelossofvisibilityduetosmokedensity,whichgenerallyisnotrelatedtoirritancypotency,asexplainedinISO5659-1.1.4Itisemphasizedthatsmokeproductionfromamaterialvariesaccordingtotheirradianceleveltowhichthespecimenisexposed.Inmakinguseoftheresultsofthismethod,itshouldbeborneinmindthattheresultsarebasedonexposuretothespe-cificirradiancelevelsof25kW/mand50kW/m.
【中国标准分类号】:G32
【国际标准分类号】:13_220_40;83_080_01
【页数】:34P;A4
【正文语种】:日语
下载地址:
点击此处下载