【英文标准名称】:Lightingcolumns.Part1:definitionsandterms.
【原文标准名称】:灯柱.第1部分:定义和术语
【标准号】:NFP97-101-1992
【标准状态】:现行
【国别】:法国
【发布日期】:1992-03-01
【实施或试行日期】:1992-03-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:图例;质量管理;缩微品;清晰度清晰度;ISO字符;摄影图像;试验设备;缩微照相;图像;复制;软的
【英文主题词】:Anglesofslope;Cableglands;Cantelivertower;Cantilevers;Definition;Definitions;Deflection;Dooropening;Electricalengineering;Englishlanguage;Frenchlanguage;Germanlanguage;Lightingcolumns;Masts;Mountingplates;Terms;Translations;Vocabulary;Workingradii
【摘要】:
【中国标准分类号】:Q70
【国际标准分类号】:93_080_40
【页数】:7P.;A4
【正文语种】:其他


【英文标准名称】:StandardTestMethodforDeterminationofAromaticHydrocarbonTypesinMiddleDistillates-HighPerformanceLiquidChromatographyMethodwithRefractiveIndexDetection
【原文标准名称】:带折射指数探测的高效液相色谱法测定在中间馏份中芳香烃类的标准试验方法
【标准号】:ASTMD6591-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D02.04.0C
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:芳烃;检测;测定;蒸馏物;大容量;高效液相色谱法;指数;液相色谱法;液体;中间;性能;折射指数;试验方法;试验
【英文主题词】:aromatichydrocarbons;aromatics;dieselfuel;highperformanceliquidchromatography;hydrocarbontypes;petroleumdistillates;refractiveindexdetection;totalaromaticsinfuel
【摘要】:Thearomatichydrocarboncontentofmotordieselfuelisafactorthatcanaffectexhaustemissionsandfuelcombustioncharacteristics,asmeasuredbycetanenumber.TheUnitedStatesEnvironmentalProtectionAgency(USEPA)regulatesthearomaticcontentofdieselfuels.CaliforniaAirResourcesBoard(CARB)regulationsplacelimitsonthetotalaromaticscontentandpolynucleararomatichydrocarboncontentofmotordieselfuel,thusrequiringanappropriateanalyticaldeterminationtoensurecompliancewiththeregulations.Thistestmethodisapplicabletomaterialsinthesameboilingrangeasmotordieselfuelsandisunaffectedbyfuelcoloration.TestMethodD1319,whichhasbeenmandatedbytheUSEPAforthedeterminationofaromaticsinmotordieselfuel,excludesmaterialswithfinalboilingpointsgreaterthan315x00B0;C(600x00B0;F)fromitsscope.TestMethodD2425isapplicabletothedeterminationofbothtotalaromaticsandpolynucleararomatichydrocarbonsindieselfuel,butismuchmorecostlyandtime-consumingtoperform.TestMethodD5186,currentlyspecifiedbyCARB,isalsoapplicabletothedeterminationofbothtotalaromaticsandpolynucleararomatichydrocarbonsindieselfuel.TestMethodD5186,however,specifiestheuseofsupercriticalfluidchromatographyequipmentthatmaynotbereadilyavailable.Note28212;TestMethodD5186waspreviouslyspecifiedbyCARBasanalternativetoTestMethodD1319.1.1Thistestmethodcoversahighperformanceliquidchromatographictestmethodforthedeterminationofmono-aromatic,di-aromatic,tri+-aromatic,andpolycyclicaromatichydrocarboncontentsindieselfuelsandpetroleumdistillatesboilingintherangefrom150to400176;C.Thetotalaromaticcontentin%m/miscalculatedfromthesumofthecorrespondingindividualaromatichydrocarbontypes.Note1Aviationfuelsandpetroleumdistillateswithaboilingpointrangefrom50to300176;CarenotdeterminedbythistestmethodandshouldbeanalyzedbyTestMethod,D6379orothersuitableequivalenttestmethods.1.2Theprecisionofthistestmethodhasbeenestablishedfordieselfuelsandtheirblendingcomponents,containingfrom4to40%(m/m)mono-aromatichydrocarbons,0to20%(m/m)di-aromatichydrocarbons,0to6%(m/m)tri+-aromatichydrocarbons,0to26%(m/m)polycyclicaromatichydrocarbons,and4to65%(m/m)totalaromatichydrocarbons.1.3Compoundscontainingsulfur,nitrogen,andoxygenarepossibleinterferents.Mono-alkenesdonotinterfere,butconjugateddi-andpoly-alkenes,ifpresent,arepossibleinterferents.1.4Byconvention,thisstandarddefinesthearomatichydrocarbontypesonthebasisoftheirelutioncharacteristicsfromthespecifiedliquidchromatographycolumnrelativetomodelaromaticcompounds.Quantificationisbyexternalcalibrationusingasinglearomaticcompound,whichmayormaynotberepresentativeofthearomaticsinthesample,foreacharomatichydrocarbontype.Alternativetechniquesandmethodsmayclassifyandquantifyindividualaromatichydrocarbontypesdifferently.1.5FattyAcidMethylEsters(FAME),ifpresent,interferewithtri+-aromatichydrocarbons.IfthismethodisusedfordieselcontainingFAME,theamountoftri+-aromaticswillbeoverestimated.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:71_040_50
【页数】:9P.;A4
【正文语种】: