【英文标准名称】:StandardTestMethodforEvaluatingtheFlexuralPropertiesofFire-RetardantTreatedSoftwoodPlywoodExposedtoElevatedTemperatures
【原文标准名称】:暴露于高温的耐火已加工软木材夹板的弯曲性能的评估的标准试验方法
【标准号】:ASTMD5516-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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
【摘要】:Theflexuralpropertiesevaluatedbythistestmethodareintendedtoprovideanyoneorallofthefollowing:5.1.1Dataonthecomparativeeffectsoffire-retardantchemicalformulationsandenvironmentalconditionsontheflexuralpropertiesofplywood.5.1.2Dataforuseindevelopingmodificationfactorsfortheallowabledesignpropertiesoftreatedplywoodwhenexposedtoelevatedtemperaturesandhumidities.5.1.3Datacomparingvariables,suchasotherplywoodspeciesanddimensions.Resultsobtainedfromtestsconductedandanalyzedinaccordancewiththeproceduresofthistestmethodmaybeusedwithotherinformationtoestablishrecommendedroofsheathingspansforfire-retardanttreatedplywood.Note18212;Temperatureslowerthanthetesttemperaturespecifiedinthistestmethodandthecumulativeeffectsoftheelevatedtemperaturesandhumidityexposuresexpectedtobeencounteredinserviceshouldbetakenintoaccountwhenrecommendedroofsheathingspansareestablished.1.1Thistestmethodisdesignedtodeterminetheeffectofexposuretohightemperaturesandhumiditiesontheflexurepropertiesoffire-retardanttreatedsoftwoodplywood.Inthistestmethod,plywoodisexposedtoatemperatureof77176;C(170176;F).1.2Thepurposeofthetestmethodistocomparetheflexuralpropertiesoffire-retardanttreatedplywoodrelativetountreatedplywood.Theresultsoftestsconductedinaccordancewiththistestmethodprovideareferencepointforestimatingstrengthtemperaturerelationships.Thistestmethodisintendedtoprovideanacceleratedtestatelevatedtemperaturesandcontrolledhumiditiesofplywoodsheathingtreatedwiththesamechemicalformulation(s)andprocessingconditionsasplywoodusedcommercially.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:79_060_20(FIBREANDPARTICLEBOARDS)
【页数】:7P.;A4
【正文语种】: