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ANSI/ASTM E2536-2006 防火试验中不确定度测量评估指南

作者:标准资料网 时间:2024-05-20 08:09:40  浏览:9590   来源:标准资料网
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【英文标准名称】:GuideforAssessmentofMeasurementUncertaintyinFireTests
【原文标准名称】:防火试验中不确定度测量评估指南
【标准号】:ANSI/ASTME2536-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2007-01-03
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:评估;燃烧特性;防火试验;测量;不确定度
【英文主题词】:Assessment;Burningbehaviours;Firetests;Measurement;Uncertainty
【摘要】:ThisguidecoverstheevaluationandexpressionofuncertaintyofmeasurementsoffiretestmethodsdevelopedandmaintainedbyASTMInternational,basedontheapproachpresentedintheGUM.Theuseinthisprocessofprecisiondataobtainedfromaroundrobinisalsodiscussed.Applicationofthisguideislimitedtoteststhatprovidequantitativeresultsinengineeringunits.Thisincludes,forexample,methodsformeasuringtheheatreleaserateofburningspecimensbasedonoxygenconsumptioncalorimetry,suchasTestMethodE1354.Thisguidedoesnotapplytoteststhatprovideresultsintheformofindicesorbinaryresults(forexample,pass/fail).Forexample,theuncertaintyoftheFlameSpreadIndexobtainedaccordingtoTestMethodE84cannotbedetermined.Insomecasesadditionalguidanceisrequiredtosupplementthisstandard.Forexample,theexpressionofuncertaintyofheatreleaseratemeasurementsatlowlevelsrequiresadditionalguidanceanduncertaintiesassociatedwithsamplingarenotexplicitlyaddressed.Thisfirestandardcannotbeusedtoprovidequantitativemeasures.
【中国标准分类号】:Q10
【国际标准分类号】:13_220_40
【页数】:
【正文语种】:英语


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基本信息
标准名称:烘发机
中标分类: 轻工、文化与生活用品 >> 家用电器、日用机具 >> 家用清洁、整容器具
替代情况:被QB/T 1876-1993代替
发布日期:
实施日期:1995-10-01
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所属分类: 轻工 文化与生活用品 家用电器 日用机具 家用清洁 整容器具
【英文标准名称】:StandardTestMethodforEvaluatingtheInfluenceofThermalInsulationsonExternalStressCorrosionCrackingTendencyofAusteniticStainlessSteel
【原文标准名称】:评定奥氏体钢热绝缘材料对外应力腐蚀开裂趋势的影响的标准试验方法
【标准号】:ASTMC692-2008e1
【标准状态】:现行
【国别】:
【发布日期】:2008
【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】:C16.31
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:奥氏体不锈钢;氯化物;德纳试验;滴水试验;外应力腐蚀裂痕(ESCC);鉴定试验;隔热;奥氏体不锈钢热绝缘;毛细作用
【英文主题词】:austeniticstainlesssteel;chloride;Danatest;Driptest;externalstresscorrosioncracking(ESCC);qualificationtest;thermalinsulation;Austeniticstainlesssteelthermalinsulation;Wicking
【摘要】:Aninherentcharacteristicofsomealloysofausteniticstainlesssteelistheirtendencytocrackatstresspointswhenexposedtocertaincorrosiveenvironments.ThemechanismsofESCCarecomplexandnotcompletelyunderstoodbutareapparentlyrelatedtocertainmetallurgicalproperties.Chlorideionsconcentratedatastresspointwillcatalyzecrackformation.IthasbeenreportedthatotherhalideionsdonotpromoteESCCtothesamedegreeasdoeschlorideusingthetesttechnologyofTestMethodC692(driptest).Chloridesarecommontomanyenvironments,sogreatcareshallbetakentoprotectausteniticstainlesssteelfromchloridecontamination.Mostthermalinsulationswillnot,ofthemselves,causestresscorrosioncrackingasshownbyqualificationtests.Whenexposedtoelevated-temperature(boilingpointrange),environmentscontainingchlorides,moisture,andoxygen,however,someinsulationsystemsactascollectingmedia,transmigratingandconcentratingchloridesonheatedstainlesssteelsurfaces.Ifmoistureisnotpresent,thechloridesaltscannotmigrate,andstresscorrosioncrackingbecauseofchloride-contaminatedinsulationcannottakeplace.Insulationmaterialsareavailablethatarespeciallyformulatedtoinhibitstresscorrosioncrackinginthepresenceofchloridesthroughmodificationsinbasiccompositionorincorporationofcertainchemicaladditives.Theabilityofthe28-daytesttomeasurethecorrosionpotentialofinsulationmaterialsisdocumentedbyKarnes,whosedataappeartohavebeenusedforconstructionoftheacceptabilitycurveusedinSpecificationC795andotherspecifications.Themetalforallofthecouponsusedinthistestmethod(C692)shallbequalified(seeSection14)toascertainthatunderconditionsofthetest,chlorideionswillcausethemetaltocrack,anddeionizedwateralonewillnotcausecracks.1.1Thistestmethodcoverstwoproceduresforthelaboratoryevaluationofthermalinsulationmaterialstodeterminewhethertheycontributetoexternalstresscorrosioncracking(ESCC)ofausteniticstainlesssteelduetosolublechlorideswithintheinsulation.ThislaboratoryprocedureisnotintendedtocoverallofthepossiblefieldconditionsthatcontributetoESCC.1.2Whilethe1977editionofthistestmethod(Danatest)isapplicableonlytowicking-typeinsulations,theproceduresinthiseditionareintendedtobeapplicabletoallinsulatingmaterials,includingcements,someofwhichdisintegratewhentestedinaccordancewiththe1977edition.Wickinginsulationsarematerialsthatwetthroughandthroughwhenpartially(50to75%)immersedinwaterforashortperiodoftime(10minorless).1.3Theseproceduresareintendedprimarilyasapreproductiontestforqualificationofthebasicchemicalcompositionofaparticularmanufacturer''sproductandarenotintendedtoberoutinetestsforongoingqualityassuranceorproductionlotcompliance.TestMethodsC871,ontheotherhand,isusedforconfirmationofacceptablechemicalpropertiesofsubsequentlotsofinsulationpreviouslyfoundacceptablebythistestmethod.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitat......
【中国标准分类号】:
【国际标准分类号】:77_060
【页数】:7P.;A4
【正文语种】:



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