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【英文标准名称】:StandardTestMethodforEvaluatingtheFlexuralPropertiesofFire-RetardantTreatedSoftwoodPlywoodExposedtoElevatedTemperatures
【原文标准名称】:在高温下阻燃处理的软木胶合板挠性特性评定的标准试验方法
【标准号】:ASTMD5516-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D07.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:bendingproperties;fireretardant;flexuralproperties;plywood;roofsheathing;strengtheffects;temperature;thermaleffects;treatment;Bendtesting--woodproducts;Flexuraltesting--woodproducts;Strength--woodmaterials/applications;Elevatedtemp
【摘要】:Theflexuralpropertiesevaluatedbythistestmethodareintendedtoprovideanyoneorallofthefollowing:Dataonthecomparativeeffectsoffire-retardantchemicalformulationsandenvironmentalconditionsontheflexuralpropertiesofplywood.Dataforuseindevelopingmodificationfactorsfortheallowabledesignpropertiesoftreatedplywoodwhenexposedtoelevatedtemperaturesandhumidities.Datacomparingvariables,suchasotherplywoodspeciesanddimensions.Resultsobtainedfromtestsconductedandanalyzedinaccordancewiththeproceduresofthistestmethodmaybeusedwithotherinformationtoestablishrecommendedroofsheathingspansforfire-retardanttreatedplywood.Note18212;Temperatureslowerthanthetesttemperaturespecifiedinthistestmethodandthecumulativeeffectsoftheelevatedtemperaturesandhumidityexposuresexpectedtobeencounteredinserviceshouldbetakenintoaccountwhenrecommendedroofsheathingspansareestablished.1.1Thistestmethodisdesignedtodeterminetheeffectofexposuretohightemperaturesandhumiditiesontheflexurepropertiesoffire-retardanttreatedsoftwoodplywood.Inthistestmethod,plywoodisexposedtoatemperatureof77x00B0;C(170x00B0;F).1.2Thepurposeofthetestmethodistocomparetheflexuralpropertiesoffire-retardanttreatedplywoodrelativetountreatedplywood.Theresultsoftestsconductedinaccordancewiththistestmethodprovideareferencepointforestimatingstrengthtemperaturerelationships.Thistestmethodisintendedtoprovideanacceleratedtestatelevatedtemperaturesandcontrolledhumiditiesofplywoodsheathingtreatedwiththesamechemicalformulation(s)andprocessingconditionsasplywoodusedcommercially.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B70
【国际标准分类号】:79_060_20
【页数】:7P.;A4
【正文语种】:英语