ASTM D7651-2010 氢燃料中微粒浓度的重量测定标准试验方法
时间:2024-05-11 21:08:27 来源: 标准资料网 作者：标准资料网 阅读：9655
【英文标准名称】:StandardTestMethodforGravimetricMeasurementofParticulateConcentrationofHydrogenFuel
【原文标准名称】:氢燃料中微粒浓度的重量测定标准试验方法
【标准号】:ASTMD7651-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:D03.14
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:重量分析的;氢燃料;微粒浓度;微粒
【英文主题词】:gravimetric;hydrogenfuel;particulateconcentration;particulate
【摘要】:Lowoperatingtemperaturefuelcellssuchasprotonexchangemembranefuelcells(PEMFCs)requirehighpurityhydrogenformaximummaterialperformanceandlifetime.MeasurementofparticulatesinhydrogenisnecessaryforassuringafeedgasofsufficientpuritytosatisfyfuelcellandinternalcombustionsystemneedsasdefinedinSAEJ2719.TheparticulatesinhydrogenfuelforFCVsandgaseoushydrogenpoweredinternalcombustionenginevehiclesmayadverselyaffectpneumaticcontrolcomponents,suchasvalves,orothercriticalsystemcomponents.Therefore,theconcentrationofparticulatesinthehydrogenfuelshouldbelimitedasspecifiedbyISO14687,SAEJ2719,orotherhydrogenfuelqualityspecifications.Althoughnotintendedforapplicationtogasesotherthanhydrogenfuel,techniqueswithinthistestmethodcanbeappliedtogassamplesrequiringdeterminationofparticulatematter.1.1Thistestmethodisprimarilyintendedforgravimetricdeterminationofparticulatesinhydrogenintendedasafuelforfuelcellorinternalcombustionenginepoweredvehicles.ThistestmethoddescribesoperatingandqualitycontrolproceduresrequiredtoobtaindataofknownqualitysatisfyingtherequirementsofSAEJ2719andtheCaliforniaCodeofRegulations,Title4,Division9,Chapter6,Article8,Sections4180x2013;4181.Thelevelsofprecisionandaccuracystated.Thistestmethodcanbeappliedtoothergaseoussamplesrequiringdeterminationofparticulatesprovidedtheuserx2019;sdataqualityobjectivesaresatisfied.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:27_075
【页数】:4P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodforBromineNumbersofPetroleumDistillatesandCommercialAliphaticOlefinsbyElectrometricTitration
【原文标准名称】:用电势滴定法测量石油馏出物和商业脂肪族烯烃的溴值用标准试验方法
【标准号】:ASTMD1159-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D02.04.0D
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:脂肪族;溴值;润滑剂;烯烃;石油;石油产品;质量;测试
【英文主题词】:aliphaticolefins;brominenumber;electrometrictitration;petroleumdistillates
【摘要】:Thebrominenumberisusefulasameasureofaliphaticunsaturationinpetroleumsamples.WhenusedinconjunctionwiththecalculationproceduredescribedinAnnexA2,itcanbeusedtoestimatethepercentageofolefinsinpetroleumdistillatesboilinguptoapproximately315x00B0;C(600x00B0;F).Thebrominenumberofcommercialaliphaticmonoolefinsprovidessupportingevidenceoftheirpurityandidentity.1.1Thistestmethodcoversthedeterminationofthebrominenumberofthefollowingmaterials:1.1.1Petroleumdistillatesthataresubstantiallyfreeofmateriallighterthanisobutaneandthathave90%distillationpoints(byTestMethodD86)under327176;C(626176;F).Thistestmethodisgenerallyapplicabletogasoline(includingleaded,unleaded,andoxygenatedfuels),kerosine,anddistillatesinthegasoilrangethatfallinthefollowinglimits:90%DistillationPoint,176;C(176;F)BromineNumber,max2Under205(400)175205to327(400to626)10【英文标准名称】:Emptyenclosuresforlow-voltageswitchgearandcontrolgearassemblies-Generalrequirements(IEC62208:2002);GermanversionEN62208:2003
【原文标准名称】:低压开关设备和控制设备组件用空外壳.一般要求
【标准号】:EN62208-2003
【标准状态】:现行
【国别】:
【发布日期】:2005-04
【实施或试行日期】:2005-04-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;电气工程;环境条件;低电压;规范(验收);开关设备;额定电压;使用条件;保护设备;合格试验;结构体系;分类;外壳;结构要求;一般条件;防护等级;开关设备成套装置;验证;低压电器;频率;尺寸;低压技术;低压开关设备;绝缘材料;试验
【英文主题词】:Classification;Constructionrequirements;Definition;Definitions;Degreesofprotection;Dimensions;Electricalengineering;Enclosures;Environmentalcondition;Frequencies;Generalconditions;Incription;Insulatingmaterials;Lowvoltage;Low-voltageequipment;Low-voltageswitchgear;Low-voltagetechnology;Operatingconditions;Protectiondevices;Qualificationtests;Ratedvoltages;Specification(approval);Structuralsystems;Switchgear;Switchgearassemblies;Testing;Verification
【摘要】:
【中国标准分类号】:K31
【国际标准分类号】:29_130_20
【页数】:27P.;A4
【正文语种】:英语