ASTM D2427-2006 气相色谱法测定汽油中C2至C5烃的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminationofC2throughC5HydrocarbonsinGasolinesbyGasChromatography
【原文标准名称】:气相色谱法测定汽油中C2至C5烃的标准试验方法
【标准号】:ASTMD2427-2006
【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】:D02.04.0L
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:机动车燃料;色谱法;含量测定;烃类;石油产品;试验
【英文主题词】:C2toC5hydrocarbons;gaschromatography;gasoline
【摘要】:Inhydrocarbontypeanalysesofgasolines,highlyvolatilefuelscanneedtobestabilizedbydepentanization(TestMethodD2001)priortoanalysis.Aknowledgeofthecompositionoflighthydrocarbonsintheoverheadfromthedepentanizationprocessisusefulinconvertinganalysesofthedepentanizedfractiontoatotalsamplebasis.1.1Thistestmethodcoversthedeterminationofthetwo(C2)throughfive(C5-)carbonparaffinsandmono-olefinsingasolines.Theconcentrationsbyvolumeormass(weight)ofthefollowingcomponentsaregenerallyreported:1.1.1Ethyleneplusethane1.1.2Propane1.1.3Propylene1.1.4Isobutane1.1.5n-Butane1.1.6Butene-1plusisobutylene1.1.7trans-Butene-21.1.8cis-Butene-21.1.9Isopentane1.1.103-Methylbutene-11.1.11n-Pentane1.1.12Pentene-11.1.132-Methylbutene-11.1.14trans-Pentene-21.1.15cis-Pentene-21.1.162-Methylbutene-21.2Thistestmethoddoesnotcoverthedeterminationofcyclicolefins,diolefins,oracetylenes.Theseareusuallyminorcomponentsinfinishedgasolines.1.3Samplestobeanalyzedshouldnotcontainsignificantamountsofmaterialboilinglowerthanethylene.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Alternativeunits,incommonusage,arealsoprovidedtoimprovetheclarityandaidtheuserofthistestmethod.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:7P.;A4
【正文语种】:


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【英文标准名称】:Informationtechnology-CommonLogic(CL):aframeworkforafamilyoflogic-basedlanguages
【原文标准名称】:信息技术.通用逻辑(CL):基于逻辑的语言族用构架
【标准号】:ANSI/INCITS/ISO/IEC24707-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:数据交换;数据结构;数据语法;数据传送;定义;电子数据处理;交换;交换格式;可扩展标记语言;信息交流;信息技术;因特网;逻辑;标记语言;语义学;句法;XML
【英文主题词】:Dataexchange;Datastructures;Datasyntax;Datatransfer;Definition;Definitions;EDP;Exchange;Exchangeformats;ExtensibleMarkupLanguage;Informationexchange;Informationtechnology;Internet;Logic;Markuplanguage;Semantics;Syntax;XML
【摘要】:ThisInternationalStandardspecifiesafamilyoflogiclanguagesdesignedforuseintherepresentationandinterchangeofinformationanddataamongdisparatecomputersystems.ThefollowingfeaturesareessentialtothedesignofthisInternationalStandard:-Languagesinthefamilyhavedeclarativesemantics.Itispossibletounderstandthemeaningofexpressionsintheselanguageswithoutappealtoaninterpreterformanipulatingthoseexpressions.-Languagesinthefamilyarelogicallycomprehensive-atitsmostgeneral,theyprovidefortheexpressionofarbitraryfirst-orderlogicalsentences,etc.
【中国标准分类号】:L74
【国际标准分类号】:35_060
【页数】:
【正文语种】:英语


【英文标准名称】:Specificationforsafetyofhouseholdandsimilarelectricalappliances-Particularrequirementsforshavers,hairclippersandsimilarappliances
【原文标准名称】:家用和类似用途电器的安全规范.剃须刀、理发推子和类似器具的特殊要求
【标准号】:BSEN60335-2-8-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-07-02
【实施或试行日期】:2003-07-02
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;安全;头发化妆用具;刮脸刀;理发推子;电气器具;家用;剃须刀;家用设备;安全要求;家用电器
【英文主题词】:Definition;Definitions;Electricappliances;Electrichouseholdappliances;Electricalengineering;Electricalhouseholdappliances;Electricalsafety;Equipmentsafety;Hairclippers;Hair-treatmentappliances;Householdequipment;Householduse;Marking;Physicalculturedevice;Protectionagainstelectricshocks;Razors;Safety;Safetyrequirements;Shavers;Shearingmachine
【摘要】:TobereadinconjunctionwithBSEN60335-1
【中国标准分类号】:Y62
【国际标准分类号】:97_170
【页数】:18P;A4
【正文语种】:英语