ASTM D5000-2005 使用侧流传感器评定粘土元素活性的标准实施规程
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【英文标准名称】:StandardPracticeforEvaluatingActivityofClayElementsUsingaSide-StreamSensor
【原文标准名称】:使用侧流传感器评定粘土元素活性的标准实施规程
【标准号】:ASTMD5000-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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.J0.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:飞行器;发动机燃料系统;评定;寿命;试验
【英文主题词】:aviationturbinefuel;filtration;jetfuel;side-streamsensor;surfactants;waterseparation
【摘要】:Clayelementsarewidelyusedinaviationfuelhandlingsystemstoadsorbpolarcontaminantsthatarepickedupinshipmentsbytanker,barge,orpipelinefromrefineriestoterminals,airports,orboth.Someofthesecontaminantssuchassurfactantsinterferewithefficientoperationoffilter-separatorunitsthatremovewaterfromfuel.Inordertodeterminewhethertheclayelementsarespent,itisnecessarytotestfuelbothintoandoutofclaytreatmentvesselsfrequently.Clayelementsmustbechangedwhennoimprovementinqualityisnoted.Unlesscarriedoutfrequently,suchtestingmaynotdiscloseadeactivatedclaytreatmentvesselintimetopreventfailureofdownstreamfilter/separators.Toavoidsuchfailures,asmallsampleofclayinaclayholdercontainedinasidestreaminstallationthatreceivesflowproportionaltothemainstreamflowisevaluatedperiodicallyusingareferencefuelcontainingaknownsurfactant.WhentheratingofthereferencefuelbyTestMethodD3948indicatesthatthecapsuleclayisbecomingspent,theelementsinthemainfiltervesselarereadyforchange.1.1Thispracticedescribesafieldproceduretodeterminewhethertheusefullifeoftheclayhasbeenexceededincanisterorbag-typeclayelementsthatareinstalledingroundfiltrationunitsofaviationfuelhandlingsystems.1.2ThefieldprocedureutilizestheapparatusofTestMethodsD3948toperiodicallytestasmallclaycapsuleinstalledinasidestreamaroundaclaytreatmentvesselthatreceivesafixedratioofthesamefuelthatflowsthroughtheclayelementsinthevessel.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Theinch-poundunitsinparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:91_100_15
【页数】:6P.;A4
【正文语种】:
【原文标准名称】:使用侧流传感器评定粘土元素活性的标准实施规程
【标准号】:ASTMD5000-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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.J0.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:飞行器;发动机燃料系统;评定;寿命;试验
【英文主题词】:aviationturbinefuel;filtration;jetfuel;side-streamsensor;surfactants;waterseparation
【摘要】:Clayelementsarewidelyusedinaviationfuelhandlingsystemstoadsorbpolarcontaminantsthatarepickedupinshipmentsbytanker,barge,orpipelinefromrefineriestoterminals,airports,orboth.Someofthesecontaminantssuchassurfactantsinterferewithefficientoperationoffilter-separatorunitsthatremovewaterfromfuel.Inordertodeterminewhethertheclayelementsarespent,itisnecessarytotestfuelbothintoandoutofclaytreatmentvesselsfrequently.Clayelementsmustbechangedwhennoimprovementinqualityisnoted.Unlesscarriedoutfrequently,suchtestingmaynotdiscloseadeactivatedclaytreatmentvesselintimetopreventfailureofdownstreamfilter/separators.Toavoidsuchfailures,asmallsampleofclayinaclayholdercontainedinasidestreaminstallationthatreceivesflowproportionaltothemainstreamflowisevaluatedperiodicallyusingareferencefuelcontainingaknownsurfactant.WhentheratingofthereferencefuelbyTestMethodD3948indicatesthatthecapsuleclayisbecomingspent,theelementsinthemainfiltervesselarereadyforchange.1.1Thispracticedescribesafieldproceduretodeterminewhethertheusefullifeoftheclayhasbeenexceededincanisterorbag-typeclayelementsthatareinstalledingroundfiltrationunitsofaviationfuelhandlingsystems.1.2ThefieldprocedureutilizestheapparatusofTestMethodsD3948toperiodicallytestasmallclaycapsuleinstalledinasidestreamaroundaclaytreatmentvesselthatreceivesafixedratioofthesamefuelthatflowsthroughtheclayelementsinthevessel.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Theinch-poundunitsinparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:91_100_15
【页数】:6P.;A4
【正文语种】:
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