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【英文标准名称】:StandardTestMethodforDeterminationofIndividualComponentsinSparkIgnitionEngineFuelsby100MetreCapillaryHighResolutionGasChromatography
【原文标准名称】:采用100米毛细管高分辨气相色谱法测定火花点燃式发动机燃料中单个素的标准试验方法
【标准号】:ASTMD6729-2004(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:D02.04.0L
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:gaschromatograph;gasoline;individualhydrocarbonanalysis;oxygenatedfuels;spark-ignitionenginefuels;Alkylates;Automotiveenginefuels/oils;ETBE(ethyltert-butylether);Ethanol;Gaschromatography(GC)--petroleumproducts;100Meter
【摘要】:Knowledgeofthespecifiedindividualcomponentcomposition(speciation)ofgasolinefuelsandblendingstocksisusefulforrefineryqualitycontrolandproductspecification.Processcontrolandproductspecificationcomplianceformanyindividualhydrocarbonsmaybedeterminedthroughtheuseofthistestmethod.1.1Thistestmethodcoversthedeterminationofindividualhydrocarboncomponentsofspark-ignitionenginefuelsandtheirmixturescontainingoxygenateblends(MTBE,ETBE,ethanol,andsoforth)withboilingrangesupto225x00B0;C.Otherlightliquidhydrocarbonmixturestypicallyencounteredinpetroleumrefiningoperations,suchasblendingstocks(naphthas,reformates,alkylates,andsoforth)mayalsobeanalyzed;however,statisticaldatawasobtainedonlywithblendedspark-ignitionenginefuels.1.2Basedonthecooperativestudyresults,individualcomponentconcentrationsandprecisionaredeterminedintherangeof0.01toapproximately30mass%.Theproceduremaybeapplicabletohigherandlowerconcentrationsfortheindividualcomponents;however,theusermustverifytheaccuracyiftheprocedureisusedforcomponentswithconcentrationsoutsidethespecifiedranges.1.3Thetestmethodalsodeterminesmethanol,ethanol,t-butanol,methylt-butylether(MTBE),ethylt-butylether(ETBE),t-amylmethylether(TAME)insparkignitionenginefuelsintheconcentrationrangeof1to30mass%.However,thecooperativestudydataprovidedsufficientstatisticaldataforMTBEonly.1.4Althoughamajorityoftheindividualhydrocarbonspresentaredetermined,someco-elutionofcompoundsisencountered.Ifthistestmethodisutilizedtoestimatebulkhydrocarbongroup-typecomposition(PONA)theuserofsuchdatashouldbecautionedthatsomeerrorwillbeencounteredduetoco-elutionandalackofidentificationofallcomponentspresent.Samplescontainingsignificantamountsofolefinicornaphthenic(forexample,virginnaphthas),orboth,constituentsaboven-octanemayreflectsignificanterrorsinPONAtypegroupings.Basedonthegasolinesamplesintheinterlaboratorycooperativestudy,thisprocedureisapplicabletosamplescontaininglessthan25mass%ofolefins.However,someinterferingcoelutionwiththeolefinsaboveC7ispossible,particularlyifblendingcomponentsortheirhigherboilingcutssuchasthosederivedfromfluidcatalyticcracking(FCC)areanalyzed,andthetotalolefincontentmaynotbeaccurate.1.4.1Totalolefinsinthesamplesmaybeobtainedorconfirmed,orboth,ifnecessary,byTestMethodD1319(volume%)orothertestmethods,suchasthosebasedonmultidimensionalPONAtypeofinstruments.1.5Ifwaterisorissuspectedofbeingpresent,itsconcentrationmaybedetermined,ifdesired,bytheuseofTestMethodD1744,orequivalent.Othercompoundscontainingoxygen,sulfur,nitrogen,andsoforth,mayalsobepresent,andmayco-elutewiththehydrocarbons.Ifdeterminationofthesespecificcompoundsisrequired,itisrecommendedthattestmethodsforthesespecificmaterialsbeused,suchasTestMethodsD4815andD5599foroxygenates,andD5623forsulfurcompounds,orequivalent.1.6AnnexA1ofthistestmethodcomparesresultsofthetestprocedurewithothertestmethodsforselectedcomponents,includingolefins,andseveralgrouptypesforseveralinterlaboratorycooperativestudysamples.Althoughbenzene,toluene,andseveraloxygenatesaredetermined,whendoubtfulastotheanalyticalresultsofthesecomponents,confirmatoryanalysescanbeobtainedbyusingspecifictestmethods.1.7Th......
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:51P.;A4
【正文语种】:英语


【英文标准名称】:Productsandsystemsfortheprotectionandrepairofconcretestructures-Testmethods-Determinationofcompressivestrengthofrepairmortar;GermanversionEN12190:1998
【原文标准名称】:混凝土支承结构防护和维修用产品和系统.检验方法.维修用灰浆抗压强度测定
【标准号】:DINEN12190-1998
【标准状态】:现行
【国别】:德国
【发布日期】:1998-12
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:水泥灰浆;压力试验;保护系统;粘结剂;试验报告;混凝土;试样制备;建筑;检修;检修;施工材料;结构;保护(装置);混凝土结构;混凝土结构;灰浆;粘合剂;体密度;定义;试验装置;抗压强度;试验;组合钢结构
【英文主题词】:
【摘要】:Thedocumentspecifiesamethodfordeterminingthecompressivestrengthofmortarsandconcretesforstructuralandnon-structuralrepair,asdefinedinEN1504-1.Themethodappliestoalltypesofrepairmortarandconcretewithamaximumaggregatesizeof8mm.Itdistinguishesbetweenmortarwithhydraulicandpolymerbinders.Hereafter,thetermmortarreferstobothmortarsandconcretes.Forrepairmortarsandconcreteswithaggregateinexcessof8mminsize,conventionalconcretetestmethodsaccordingtoprEN206areused.#,,#
【中国标准分类号】:P25
【国际标准分类号】:91_080_40;91_100_10
【页数】:8P;A4
【正文语种】:德语