BS EN ISO 4589-3-1996 塑料.通过氧指数测定其燃烧性.第3部分:高温试验
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【英文标准名称】:Plastics.Determinationofburningbehaviourbyoxygenindex.Elevatedtemperaturetest
【原文标准名称】:塑料.通过氧指数测定其燃烧性.第3部分:高温试验
【标准号】:BSENISO4589-3-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-12-15
【实施或试行日期】:1996-12-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:垂直;易燃性;燃烧试验法;化学指数;氧指数;温度;高聚物;试样制备;试验条件;燃烧试验;试验设备;着火性;塑料;温度测量
【英文主题词】:Burningbehaviours;Chemicalindices;Combustion;Combustiontestmethods;Concentration;Definitions;Determination;Firetests;Flammability;High-temperaturetechniques;High-temperaturetesting;Ignitability;Materials;Oxygenconcentration;Oxygenindex;Physicaltesting;Plasticfilms;Plastics;Polymers;Specimenpreparation;Surfacespreadofflame;Temperature;Temperaturemeasurement;Testequipment;Testing;Testingconditions;Vertical
【摘要】:ThispartofISO4589specifiesmethodsfordeter-miningtheminimumconcentrationofoxygen,inamixturewithnitrogen,thatwillsupportcombustionofsmallverticaltestspecimensunderspecifiedtestconditionsoverarangeoftemperaturestypicallybe-tween25℃and150℃.Theresultsaredefinedasoxygenindexvaluesatthetesttemperature,whichistypicalofthepracticaltemperaturethataplasticma-terialmayexperienceinanoverheatedservicesitu-ation.Methodsareprovidedfortestingmaterialsthatareself-supportingatthetesttemperatureintheformofverticalbarsorsheetupto10,5mmthick.Thesemethodsaresuitableforsolid,laminatedorcellularmaterialscharacterizedbyanapparentdensitygreaterthan100kg/m.Themethodsmayalsobeapplicabletosomecellularmaterialshavinganapparentdensityoflessthan100kg/m.Amethodisprovidedfortestingflexiblesheetorfilmmaterialswhilesupportedvertically.ThispartofISO4589alsoincludesamethod(seeannexA)fordeterminingthetemperatureatwhichtheoxygenindexofsmallverticaltestspecimensinairis20,9underspecifiedtestconditions.Theresultisdefinedastheflammabilitytemperature(FT)andthemethodislimitedtothedeterminationofresultslessthan400℃.Themethodisnotapplicabletomaterialshavinganoxygenindexof<20,9whenmeasuredat23℃.ResultsobtainedinaccordancewiththispartofISO4589shouldnotbeusedtodescribeorappraisethefirehazardpresentedbyaparticularmaterialorshapeunderactualfireconditions,unlessusedasoneelementofafireriskassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttotheassessmentofthefirehazardofaparticularapplica-tionforthematerial.NOTES1Itmaynotbepossibletoapplythesemethodssatisfac-torilytomaterialsthatexhibithighlevelsofshrinkagewhenheated,e.g.highlyorientedthinfilm.2Forassessingtheflamepropagationpropertiesofcellu-larmaterialsofdensity<100kg/m,attentionisdrawntothemethodofISO3582:1978,Cellularplasticandcellularrubbermaterials?Laboratoryassessmentofhorizontalburningcharacteristicsofsmallspecimenssubjectedtoasmallflame.
【中国标准分类号】:G31
【国际标准分类号】:13_220_40;83_080_01
【页数】:26P.;A4
【正文语种】:英语
【原文标准名称】:塑料.通过氧指数测定其燃烧性.第3部分:高温试验
【标准号】:BSENISO4589-3-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-12-15
【实施或试行日期】:1996-12-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:垂直;易燃性;燃烧试验法;化学指数;氧指数;温度;高聚物;试样制备;试验条件;燃烧试验;试验设备;着火性;塑料;温度测量
【英文主题词】:Burningbehaviours;Chemicalindices;Combustion;Combustiontestmethods;Concentration;Definitions;Determination;Firetests;Flammability;High-temperaturetechniques;High-temperaturetesting;Ignitability;Materials;Oxygenconcentration;Oxygenindex;Physicaltesting;Plasticfilms;Plastics;Polymers;Specimenpreparation;Surfacespreadofflame;Temperature;Temperaturemeasurement;Testequipment;Testing;Testingconditions;Vertical
【摘要】:ThispartofISO4589specifiesmethodsfordeter-miningtheminimumconcentrationofoxygen,inamixturewithnitrogen,thatwillsupportcombustionofsmallverticaltestspecimensunderspecifiedtestconditionsoverarangeoftemperaturestypicallybe-tween25℃and150℃.Theresultsaredefinedasoxygenindexvaluesatthetesttemperature,whichistypicalofthepracticaltemperaturethataplasticma-terialmayexperienceinanoverheatedservicesitu-ation.Methodsareprovidedfortestingmaterialsthatareself-supportingatthetesttemperatureintheformofverticalbarsorsheetupto10,5mmthick.Thesemethodsaresuitableforsolid,laminatedorcellularmaterialscharacterizedbyanapparentdensitygreaterthan100kg/m.Themethodsmayalsobeapplicabletosomecellularmaterialshavinganapparentdensityoflessthan100kg/m.Amethodisprovidedfortestingflexiblesheetorfilmmaterialswhilesupportedvertically.ThispartofISO4589alsoincludesamethod(seeannexA)fordeterminingthetemperatureatwhichtheoxygenindexofsmallverticaltestspecimensinairis20,9underspecifiedtestconditions.Theresultisdefinedastheflammabilitytemperature(FT)andthemethodislimitedtothedeterminationofresultslessthan400℃.Themethodisnotapplicabletomaterialshavinganoxygenindexof<20,9whenmeasuredat23℃.ResultsobtainedinaccordancewiththispartofISO4589shouldnotbeusedtodescribeorappraisethefirehazardpresentedbyaparticularmaterialorshapeunderactualfireconditions,unlessusedasoneelementofafireriskassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttotheassessmentofthefirehazardofaparticularapplica-tionforthematerial.NOTES1Itmaynotbepossibletoapplythesemethodssatisfac-torilytomaterialsthatexhibithighlevelsofshrinkagewhenheated,e.g.highlyorientedthinfilm.2Forassessingtheflamepropagationpropertiesofcellu-larmaterialsofdensity<100kg/m,attentionisdrawntothemethodofISO3582:1978,Cellularplasticandcellularrubbermaterials?Laboratoryassessmentofhorizontalburningcharacteristicsofsmallspecimenssubjectedtoasmallflame.
【中国标准分类号】:G31
【国际标准分类号】:13_220_40;83_080_01
【页数】:26P.;A4
【正文语种】:英语
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