【英文标准名称】:StandardTestMethodforDeterminationofMTBE,ETBE,TAME,DIPE,tertiary-AmylAlcoholandC1toC4AlcoholsinGasolinebyGasChromatography
【原文标准名称】:气相色谱分析法测定汽油中甲基叔丁基醚(MTBE)、二乙基丁基醚(ETBE)、甲苯磺酰－精氨酸甲酯(TAME)、二异丙醚(DIPE)、叔戊酯和C～C醇的标准试验方法
【标准号】:ASTMD4815-2004
【标准状态】:现行
【国别】:
【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】:醇;机动车燃料;含量测定;气相色谱分析法;试验方法
【英文主题词】:alcohols;DIPE(disopropylether);ETBE(ethyltert-butylether);ethers;gaschromatography;gasoline;MTBE(methyltert-butylether);oxygenates;TAME(tert-amylmethylether)
【摘要】:Ethers,alcohols,andotheroxygenatescanbeaddedtogasolinetoincreaseoctanenumberandtoreduceemissions.Typeandconcentrationofvariousoxygenatesarespecifiedandregulatedtoensureacceptablecommercialgasolinequality.Drivability,vaporpressure,phaseseparation,exhaust,andevaporativeemissionsaresomeoftheconcernsassociatedwithoxygenatedfuels.Thistestmethodisapplicabletobothqualitycontrolintheproductionofgasolineandforthedeterminationofdeliberateorextraneousoxygenateadditionsorcontamination.1.1Thistestmethodcoversthedeterminationofethersandalcoholsingasolinesbygaschromatography.Specificcompoundsdeterminedaremethyltert-butylether(MTBE),ethyltert-butylether(ETBE),tert-amylmethylether(TAME),diisopropylether(DIPE),methanol,ethanol,isopropanol,n-propanol,isobutanol,tert-butanol,sec-butanol,n-butanol,andtert-pentanol(tert-amylalcohol).1.2Individualethersaredeterminedfrom0.20to20.0mass%.Individualalcoholsaredeterminedfrom0.20to12.0mass%.Equationsusedtoconverttomass%oxygenandtovolume%ofindividualcompoundsareprovided.Atconcentrations0.20mass%,itispossiblethathydrocarbonsmayinterferewithseveralethersandalcohols.Thereportinglimitof0.20mass%wastestedforgasolinescontainingamaximumof10volume%olefins.Itmaybepossiblethatforgasolinescontaining>10volume%olefins,theinterferencemaybe>0.20mass%.givesachromatogramshowingtheinterferenceobservedwithagasolinecontaining10volume%olefins.1.3Alcohol-basedfuels,suchasM-85andE-85,MTBEproduct,ethanolproduct,anddenaturedalcohol,arespecificallyexcludedfromthistestmethod.ThemethanolcontentofM-85fuelisconsideredbeyondtheoperatingrangeofthesystem.1.4Benzene,whiledetected,cannotbequantifiedusingthistestmethodandmustbeanalyzedbyalternatemethodology(seeTestMethodD3606).1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Alternateunits,incommonusage,arealsoprovidedtoincreaseclarityandaidtheusersofthistestmethod.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:10P.;A4
【正文语种】:


MIL-L-27546D, MILITARY SPECIFICATION: LINER - FLYER'S JACKET, AND FLYERS TROUSERS, CWU-9/P (23 APR 1991) [S/S BY MIL-DTL-27546E]., This Specification covers the requirements for liners to be worn under the CWU-9/P jacket and trousers.