【英文标准名称】:StandardTestMethodforDeterminationofIndividualComponentsinSparkIgnitionEngineFuelsby50-MetreCapillaryHighResolutionGasChromatography
【原文标准名称】:用50米毛细管高分辨率气相色谱法测定火花点火发动机燃料中各种成分的标准试验方法
【标准号】:ASTMD6733-2001(2006)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:机动车燃料;毛细管;气相色谱法;各种成分;材料试验;仪表校准;物理化学法;火花点火;点火发动机;试验
【英文主题词】:detailedhydrocarbonanalysis;DHA;gaschromatography;gasoline;hydrocarbons;opentubular;oxygenates;sparkignitionenginefuels
【摘要】:Knowledgeoftheindividualcomponentcomposition(speciation)ofgasolinefuelsandblendingstocksisusefulforrefineryqualitycontrolandproductspecification.Processcontrolandproductspecificationcomplianceformanyindividualhydrocarbonsmaybedeterminedthroughtheuseofthistestmethod.1.1Thistestmethodcoversthedeterminationofindividualhydrocarboncomponentsofspark-ignitionenginefuelswithboilingrangesupto225176;C.Otherlightliquidhydrocarbonmixturestypicallyencounteredinpetroleumrefiningoperations,suchas,blendingstocks(naphthas,reformates,alkylates,andsoforth)mayalsobeanalyzed;however,statisticaldatawasobtainedonlywithblendedspark-ignitionenginefuels.Thetablesinenumeratethecomponentsreported.Componentconcentrationsaredeterminedintherangefrom0.10to15mass%.Theproceduremaybeapplicabletohigherandlowerconcentrationsfortheindividualcomponents;however,theusermustverifytheaccuracyiftheproceduresareusedforcomponentswithconcentrationsoutsidethespecifiedranges.1.2Thistestmethodisapplicablealsotospark-ignitionenginefuelblendscontainingoxygenatedcomponents.However,inthiscase,theoxygenatecontentmustbedeterminedbyTestMethodsD5599orD4815.1.3Benzeneco-eluteswith1-methylcyclopentene.BenzenecontentmustbedeterminedbyTestMethodD3606orD5580.1.4Tolueneco-eluteswith2,3,3-trimethylpentane.ToluenecontentmustbedeterminedbyTestMethodD3606orD5580.1.5Althoughamajorityoftheindividualhydrocarbonspresentaredetermined,someco-elutionofcompoundsisencountered.Ifthisprocedureisutilizedtoestimatebulkhydrocarbongroup-typecomposition(PONA)theuserofsuchdatashouldbecautionedthaterrormaybeencounteredduetoco-elutionandalackofidentificationofallcomponentspresent.Samplescontainingsignificantamountsofnaphthenic(forexample,virginnaphthas)constituentsaboven-octanemayreflectsignificanterrorsinPONAtypegroupings.Basedontheinterlaboratorycooperativestudy,thisprocedureisapplicabletosampleshavingconcentrationsofolefinslessthan20mass%.However,significantinterferingcoelutionwiththeolefinsaboveC7ispossible,particularlyifblendingcomponentsortheirhigherboilingcutssuchasthosederivedfromfluidcatalyticcracking(FCC)areanalyzed,andthetotalolefincontentmaynotbeaccurate.Manyoftheolefinsinsparkignitionfuelsareataconcentrationbelow0.10%;theyarenotreportedbythistestmethodandmaybiasthetotalolefinresultslow.1.5.1Totalolefinsinthesamplesmaybeobtainedorconfirmed,orboth,byTestMethodD1319(volume%)orothertestmethods,suchasthosebasedonmultidimensionalPONAtypeofinstruments.1.6Ifwaterisorissuspectedofbeingpresent,itsconcentrationmaybedetermined,ifdesired,bytheuseofTestMethodD1744.Othercompoundscontainingsulfur,nitrogen,andsoforth,mayalsobepresent,andmayco-elutewiththehydrocarbons.Ifdeterminationofthesespecificcompoundsisrequired,itisrecommendedthattestmethodsforthesespecificmaterialsbeused,suchasTestMethodD5623forsulfurcompounds.1.7ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:71_040_50;75_160_20
【页数】:23P.;A4
【正文语种】:
基本信息
| 标准名称： | 食品中蛋白质的测定方法 |
| 英文名称： | Method for determination of protein in foods |
| 中标分类： |
医药、卫生、劳动保护 >>
卫生 >>
食品卫生 |
| ICS分类： |
食品技术 >>
食品综合
|
| 替代情况： | 被GB/T 5009.5-2003代替 |
| 发布日期： | 1985-05-16 |
| 实施日期： | 1900-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2004-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 2页 |
适用范围
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前言
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引用标准
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所属分类： 医药 卫生 劳动保护 卫生 食品卫生 食品技术 食品综合