SAE AS1031 Fitting, Tee, Standard and Reducer, Bulkhead on Run, Internal Port on Side, Flared

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Product Code:SAE AS1031
Title:Fitting, Tee, Standard and Reducer, Bulkhead on Run, Internal Port on Side, Flared
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:No scope available.
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【英文标准名称】:StandardTestMethodforDeterminationofAromaticContentandPolynuclearAromaticContentofDieselFuelsandAviationTurbineFuelsbySupercriticalFluidChromatography
【原文标准名称】:用超临界流体色谱法测定柴油和航空涡轮燃料中芳香烃含量和多核芳香烃含量的标准试验方法
【标准号】:ASTMD5186-2003
【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】:D02.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;芳族化合物;柴油;液相色谱法;含量测定
【英文主题词】:aromatics;aromatichydrocarbons;dieselfuel;monoaromatics;polynuclear;supercriticalfluidchromatography
【摘要】:Thearomatichydrocarboncontentofmotordieselfuelsisafactorthatcanaffecttheircetanenumberandexhaustemissions.Thearomatichydrocarboncontentandthenaphthalenescontentofaviationturbinefuelsaffecttheircombustioncharacteristicsandsmoke-formingtendencies.Thesepropertiesrepresentspecificationsforaviationturbinefuels(seeSpecificationD1655).TheUnitedStatesEnvironmentalProtectionAgency(USEPA)regulatesthearomaticcontentofdieselfuels.CaliforniaAirResourcesBoard(CARB)regulationsplacelimitsonthetotalaromaticscontentandpolynucleararomatichydrocarboncontentofmotordieselfuel,thusrequiringanappropriateanalyticaldeterminationtoensurecompliancewiththeregulations.Producersofdieselfuelswillrequiresimilardeterminationsforprocessandqualitycontrol.Thistestmethodcanbeusedtomakesuchdeterminations.Thistestmethodisapplicabletomaterialsintheboilingrangeofmotordieselfuelsandisunaffectedbyfuelcoloration.TestMethodD1319,whichhasbeenmandatedbytheUSEPAforthedeterminationofaromaticsinmotordieselfuel,excludesmaterialswithfinalboilingpointsgreaterthan315x00B0;C(600x00B0;F)fromitsscope.TestMethodD2425isapplicabletothedeterminationofbothtotalaromaticsandpolynucleararomatichydrocarbonsindieselfuel,butismuchmorecostlyandtime-consumingtoperform.ResultsobtainedbythistestmethodhavebeenshowntobestatisticallymoreprecisethanthoseobtainedfromTestMethodD1319fortypicaldieselfuels,andthistestmethodhasashorteranalysistime.4Cooperativestudydata5havefoundthistestmethodtobemoreprecisethanthepublishedprecisionofTestMethodD1319whenappliedtoaviationturbinefuelsanddieselfuels.ResultsfromthistestmethodfortotalpolynucleararomatichydrocarbonsarealsoexpectedtobeatleastaspreciseasthoseofTestMethodD2425.1.1Thistestmethodcoversthedeterminationofthetotalamountsofmonoaromaticandpolynucleararomatichydrocarboncompoundsinmotordieselfuels,aviationturbinefuels,andblendstocksbysupercriticalfluidchromatography(SFC).Therangeofaromaticsconcentrationtowhichthistestmethodisapplicableisfrom1to75mass%.Therangeofpolynucleararomatichydrocarbonconcentrationstowhichthistestmethodisapplicableisfrom0.5to50mass%.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesstatedininch-poundunitsareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:6P.;A4
【正文语种】:


【英文标准名称】:StandardTestMethodforHazeandLuminousTransmittanceofTransparentPlastics
【原文标准名称】:透明塑料混浊度和透光率的标准试验方法
【标准号】:ASTMD1003-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:D20.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:混浊度;光透射比;规则透射比;透明塑料
【英文主题词】:haze;luminoustransmittance;regulartransmittance;transparentplastics
【摘要】:Lightthatisscattereduponpassingthroughafilmorsheetofamaterialcanproduceahazyorsmokyfieldwhenobjectsareviewedthroughthematerial.Anothereffectcanbeveilingglare,asoccursinanautomobilewindshieldwhendrivingintothesun.Althoughhazemeasurementsaremademostcommonlybytheuseofahazemeter,aspectrophotometermaybeused,providedthatitmeetsthegeometricandspectralrequirementsofSection5.Theuseofaspectrophotometerforhazemeasurementofplasticscanprovidevaluablediagnosticdataontheoriginofthehaze,andProcedureBisdevotedtotheuseofaspectrophotometer.ProcedureA(hazemeter)testvaluesarenormallyslightlyhigherandlessvariablethanProcedureB(spectrophotometer)testvalues.Regularluminoustransmittanceisobtainedbyplacingaclearspecimenatsomedistancefromtheentranceportoftheintegratingsphere.However,whenthespecimenishazy,thetotalhemisphericalluminoustransmittancemustbemeasuredbyplacingthespecimenattheentranceportofthesphere.Themeasuredtotalhemisphericalluminoustransmittancewillbegreaterthantheregularluminoustransmittance,dependingontheopticalpropertiesofthesample.Withthistestmethod,thespecimenisnecessarilyplacedattheentranceportofthesphereinordertomeasurehazeandtotalhemisphericalluminoustransmittance.Hazedatarepresentativeofthematerialmaybeobtainedbyavoidingheterogeneoussurfaceorinternaldefectsnotcharacteristicofthematerial.Hazeandluminous-transmittancedataareespeciallyusefulforqualitycontrolandspecificationpurposes.Beforeproceedingwiththistestmethod,referenceshouldbemadetothespecificationofthematerialbeingtested.Anytestspecimenpreparation,conditioning,dimensions,ortestingparameters,orcombinationthereof,coveredinthematerialsspecificationshalltakeprecedenceoverthosementionedinthistestmethod.Iftherearenomaterialspecifications,thenthedefaultconditionsapply.1.1Thistestmethodcoverstheevaluationofspecificlight-transmittingandwide-angle-light-scatteringpropertiesofplanarsectionsofmaterialssuchasessentiallytransparentplastic.Twoproceduresareprovidedforthemeasurementofluminoustransmittanceandhaze.ProcedureAusesahazemeterasdescribedinSection5andProcedureBusesaspectrophotometerasdescribedinSection8.Materialhavingahazevaluegreaterthan30%isconsidereddiffusingandshouldbetestedinaccordancewithPracticeE2387.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Note18212;Forgreaterdiscriminationamongmaterialsthatscatterahighpercentoflightwithinanarrowforwardangle,suchasisthecasewithabradedtransparentplastics,adjustthehazemeterandperformmeasurementsinaccordancewithTestMethodD1044.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note28212;ThistestmethodisnotequivalenttoISO13468-1andISO/DIS14782.
【中国标准分类号】:
【国际标准分类号】:83_140_99
【页数】:7P.;A4
【正文语种】: