EN ISO 12241-1998 建筑设备和工业装置绝热.计算规则
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【英文标准名称】:Thermalinsulationforbuildingequipmentandindustrialinstallations-Calculationrules(ISO12241:1998);GermanversionENISO12241:1998
【原文标准名称】:建筑设备和工业装置绝热.计算规则
【标准号】:ENISO12241-1998
【标准状态】:现行
【国别】:
【发布日期】:1998-06
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:热传递;基本家用设备;使用设施;温度分布;计算准则;热损失;管道;数量估计;建筑物;定义;计算方法;控制;管;液压系统;隔热
【英文主题词】:
【摘要】:建筑设备和工业装置绝热.计算规则
【中国标准分类号】:P31
【国际标准分类号】:27_220;91_140_01
【页数】:34P;A4
【正文语种】:英语
Product Code:SAE J896
Title:Mounting Flanges for Engine Accessory Drives (STABILIZED Dec 2011)
Issuing Committee:Machine Technical Steering Committee
Scope: This SAE Recommended Practice shows mounting flange dimensions for engine accessory drives such as pulleys, extended shaft flanges, and coupling halves.【英文标准名称】:StandardPracticeforDeterminationofSkinContactTemperaturefromHeatedSurfacesUsingAMathematicalModelandThermesthesiometer
【原文标准名称】:使用数学模型和Thermesthesiometer测定加热表面皮肤接触温度用标准实施规范
【标准号】:ASTMC1057-2003(2010)
【标准状态】:现行
【国别】:美国
【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】:C16.30
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:burnpotential;elevatedtemperature;healthhazards;insitumeasurement;maximumtemperature;temperaturetest;thermothesiometer;thermalcontact;Burnhazardpotential;Burningcharacteristics--thermalinsulation;Contactburninginjuries;Dermalexpo
【摘要】:Theproceduresinthispracticesupportthedeterminationoftheburnhazardpotentialforaheatedsurface.TheseproceduresprovideanestimateofthemaximumskincontacttemperatureandmustbeusedinconjunctionwithGuideC1055toevaluatethesurfacehazardpotential.Thetwoproceduresoutlinedhereinarebothbaseduponthesameheattransferprinciples.MethodAusesamathematicalmodeltopredictthecontacttemperature,whileMethodBusesaplasticrubberprobehavingsimilarheattransfercharacteristicstothehumanfingertox201C;measurex201D;thecontacttemperatureonrealsystems.Theseproceduresserveasanestimatefortheskincontacttemperatureswhichmightoccurforthex201C;averagex201D;individual.Unusualconditionsofexposure,incorrectdesignassumptions,subjecthealthconditions,orunforeseenoperatingconditionsmaynegatethevalidityoftheestimations.Theseproceduresarelimitedtodirectcontactexposureonly.Conditionsofpersonalexposuretoperiodsofhighambienttemperatures,directflameexposure,orhighradiantfluxesmaycausehumaninjuryinperiodsotherthandeterminedherein.Evaluationofexposuresotherthandirectcontactarebeyondthescopeofthispractice.ColdSurfaceExposure8212;Noconsensuscriteriaexistsforthedestructionofskincellsbyfreezing.If,atsomefuturetime,suchcriteriaaredeveloped,extrapolationofthetechniquespresentedherewillserveasabasisforcoldsurfaceexposureevaluation.1.1Thispracticecoversaprocedureforevaluatingtheskincontacttemperatureforheatedsurfaces.Twocomplimentaryproceduresarepresented.Thefirstisapurelymathematicalapproximationthatcanbeusedduringdesignorforworstcaseevaluation.Thesecondmethoddescribesthethermesthesiometer,aninstrumentthatanaloguesthehumansensorymechanismandcanbeusedonlyonoperatingsystems.Note18212;BothprocedureslistedhereinareintendedforusewithGuideC1055.Whenusedinconjunctionwiththatguide,theseprocedurescandeterminetheburnhazardpotentialforaheatedsurface.1.2AbibliographyofhumanburnevaluationstudiesandsurfacehazardmeasurementisprovidedintheReferencesattheendofGuideC1055.ThermesthesiometerandmathematicalmodelingreferencesareprovidedintheReferencesattheendofthispractice(1-5).1.3Thispracticeaddressestheskincontacttemperaturedeterminationforpassiveheatedsurfacesonly.Theanalysisprocedurescontainedhereinarenotapplicabletochemical,electrical,orothersimilarhazardsthatprovideaheatgenerationsourceatthelocationofcontact.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C52
【国际标准分类号】:13_100
【页数】:6P.;A4
【正文语种】:英语
