ASTM D7397-2010 石油产品浊点的标准试验方法(微型光学法)

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【英文标准名称】:StandardTestMethodforCloudPointofPetroleumProducts(MiniaturizedOpticalMethod)
【原文标准名称】:石油产品浊点的标准试验方法(微型光学法)
【标准号】:ASTMD7397-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D02.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:automaticcouldpoint;cloudpoint;miniaturizedcloudpointapparatus;Peltier;petroleumproducts;thermoelectricwaxcrystals;Cloudpoint;MiniaturizedOpticalMethod;Petroleumproducts
【摘要】:Thecloudpointofpetroleumproductsandbiodieselfuelsisanindexofthelowesttemperatureoftheirutilityforcertainapplications.Waxcrystalsofsufficientquantitycanplugfiltersusedinsomefuelsystems.Petroleumblendingoperationsrequireaprecisemeasurementofthecloudpoint.Thistestmethodcandeterminethetemperatureofthetestspecimenatwhichwaxcrystalshaveformedsufficientlytobeobservedasacloudwitharesolutionof0.1x00B0;C.ThistestmethodprovidesresultsthatareequivalenttoTestMethodD5773/IP446.ThetemperatureresultsofthistestmethodhavebeenfoundtobewarmerthanthoseofTestMethodD2500/IP219byanaverageof0.49x00B0;C;however,nosamplespecificbiaswasobserved.SimilartoTestMethodD5773/IP446,thistestmethoddeterminescloudpointinashorterperiodoftimethanTestMethodD2500/IP219.Note18212;Incasesofsampleswithcloudpointsnearambienttemperatures,timesavingsmaynotberealized.Note28212;ThistestmethodeliminatesmostoftheoperatortimerequiredofTestMethodD2500/IP219.Note38212;Theonlyutilityrequiredbytheapparatusdescribedinthistestmethodiselectricitywithpowerconsumptionofapproximately20watts.Theelectricpowercancomefromanalternatingcurrentsource(wallreceptacle)ordirectcurrentsourcesuchasabatteryoracigarettelighterpluginavehicle.Note48212;TheapparatusdescribedbythistestmethodcanbemademuchsmallerandlighterthanthatofTestMethodsD5773/IP446andD2500/IP219,allowingfullportability.Note58212;Theapparatususedinthe2006interlaboratorystudyweighedapproximately1kgandoccupiedthespaceofasmalllunchbox.SeeSection13.1.1Thistestmethodcoversthedeterminationofthecloudpointofpetroleumproductsandbiodieselfuelsthataretransparentinlayers40mminthicknessbyanautomaticinstrument.1.2Thistestmethodcoverstherangeoftemperaturesfromx2013;60to+20x00B0;Cwithtemperatureresolutionof0.1x00B0;C;however,therangeoftemperaturesincludedinthe2006interlaboratorycooperativetestprogramonlycoveredthetemperaturerangeofx2013;35to+12x00B0;C.SeeSection13.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:6P.;A4
【正文语种】:英语