【英文标准名称】:Textandofficesystems-Keyboards-Part1:Germankeyboardfortypewriters;keyarrangementandallocationofcharacterstokeys
【原文标准名称】:办公系统.键盘.第1部分:德文打字机键盘.字键排列和字符布局
【标准号】:DIN2137-1-1995
【标准状态】:作废
【国别】:德国
【发布日期】:1995-07
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:德语;办公机器;信息技术;规范;位置;数据处理;办公装置;键盘分配;键盘配置;打字机;数据系统工程;办公室设备;布置;键盘;字母数字的;字母数字字符集;键(键盘);图形显示字符;数据处理设备;钥匙
【英文主题词】:Alphanumeric;Alphanumericcharactersets;Dataprocessing;Dataprocessingequipment;Datasystemsengineering;Germanlanguage;Graphiccharacters;Informationtechnology;Keypanelassignment;Keyboardlayout;Keyboards;Keys;Keys(keyboards);Layout;Officeequipment;Officemachines;Officesystem;Position;Specifications;Typewriters
【摘要】:Standardizationofallocationof101charactersto46keysaswellastheblankcharactertotheblankcharacterkey.
【中国标准分类号】:Y54;L63
【国际标准分类号】:35_260
【页数】:10P.;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforDistillationofPetroleumProductsatAtmosphericPressure(MicroDistillationMethod
【原文标准名称】:大气压下石油产品蒸馏的标准试验方法(Micro蒸馏法)
【标准号】:ASTMD7345-2008
【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】:美国材料与试验协会(US-ASTM)
【起草单位】:D02.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:batchdistillation;boilingrangedistribution;distillates;distillation;laboratorydistillation;microdistillation;petroleumproducts;Distillation--petroleumproducts;Petroleumproducts
【摘要】:Thedistillation(volatility)characteristicsofhydrocarbonshaveanimportanteffectontheirsafetyandperformance,especiallyinthecaseoffuelsandsolvents.Theboilingrangegivesinformationonthecomposition,theproperties,andthebehaviorofthefuelduringstorageanduse.Volatilityisthemajordeterminantofthetendencyofahydrocarbonmixturetoproducepotentiallyexplosivevapors.Thedistillationcharacteristicsarecriticallyimportantforbothautomotiveandaviationgasolines,affectingstarting,warm-up,andtendencytovaporlockathighoperatingtemperatureorathighaltitude,orboth.Thepresenceofhighboilingpointcomponentsintheseandotherfuelscansignificantlyaffectthedegreeofformationofsolidcombustiondeposits.Distillationlimitsareoftenincludedinpetroleumproductspecifications,incommercialcontractagreements,processrefinery/controlapplications,andforcompliancetoregulatoryrules.Thistestmethodcanbeappliedtocontaminatedproductsorhydrocarbonmixtures.Thisisvaluableforfastproductqualityscreening,refiningprocessmonitoring,fueladulterationcontrol,orotherpurposesincludinguseasaportableapparatusforfieldtesting.Thistestmethodusesanautomaticmicrodistillationapparatus,providesfastresultsusingsmallsamplevolume,andeliminatesmuchoftheoperatortimeandsubjectivityincomparisontoTestMethodD86.1.1Thistestmethodcoversaprocedurefordeterminationofthedistillationcharacteristicsofpetroleumproductshavingboilingrangebetween20to400x00B0;Catatmosphericpressureusinganautomaticmicrodistillationapparatus.1.2Thistestmethodisapplicabletosuchproductsas;lightandmiddledistillates,automotivespark-ignitionenginefuels,automotivespark-ignitionenginefuelscontainingupto10%ethanol,aviationgasolines,aviationturbinefuels,regularandlowsulfurdieselfuels,biodieselblendsupto20%biodiesel,specialpetroleumspirits,naphthas,whitespirits,kerosines,burnerfuels,andmarinefuels.1.3Thetestmethodisalsoapplicabletohydrocarbonswithanarrowboilingrange,likeorganicsolventsoroxygenatedcompounds.1.4Thetestmethodisdesignedfortheanalysisofdistillateproducts;itisnotapplicabletoproductscontainingappreciablequantitiesofresidualmaterial.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_180_20
【页数】:15P.;A4
【正文语种】:英语