ANSI/EIA 417-A-1991 晶体外形
作者:标准资料网 时间:2024-04-28 00:29:09 浏览:9719
来源:标准资料网
【英文标准名称】:CrystalOutlines
【原文标准名称】:晶体外形
【标准号】:ANSI/EIA417-A-1991
【标准状态】:现行
【国别】:美国
【发布日期】:1991
【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】:
【标准类型】:()
【标准水平】:()
【中文主题词】:晶体;电子工程
【英文主题词】:electronicengineering;crystals
【摘要】:
【中国标准分类号】:L40
【国际标准分类号】:31_020
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodforEstimationofEngineOilVolatilitybyCapillaryGasChromatography
【原文标准名称】:用毛细管气相色谱法评定发动机油挥发性的标准试验方法
【标准号】:ASTMD6417-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D02.04.0H
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:boilingrangedistribution;engineoil,volatility;gaschromatography;lubricants;petroleum;simulateddistillation;volatility;Automotiveenginefuels/oils;Boilingrangedistribution;Capillarygaschromatography;Gaschromatography(GC)--petroleum
【摘要】:Thedeterminationofengineoilvolatilityat371x00B0;C(700x00B0;F)isarequirementinsomelubricantspecifications.ThistestmethodisintendedasanalternativetoTestMethodsD5800andtheNoackmethodforthedeterminationofengineoilvolatility(CECL-40x2013;93).ThedataobtainedfromthistestmethodarenotdirectlyequivalenttoTestMethodD5800.Thecalculatedresultsoftheoilvolatilityestimationbythistestmethodcanbebiasedbythepresenceofadditives(polymericmaterials),whichmaynotcompletelyelutefromthegaschromatographiccolumn,orbyheavierbaseoilsnotcompletelyelutingfromthecolumn.Theresultsofthistestmethodmayalsonotcorrelatewithotheroilvolatilitymethodsfornonhydrocarbonsyntheticoils.Thistestmethodcanbeusedonlubricantproductsnotwithinthescopeofothertestmethodsusingsimulateddistillationmethodologies,suchasTestMethodD2887.1.1Thistestmethodcoversanestimationoftheamountofengineoilvolatilizedat371x00B0;C(700x00B0;F).1.1.1Thistestmethodcanalsobeusedtoestimatetheamountofoilvolatilizedatanytemperaturebetween126and371x00B0;C,ifsodesired.1.2Thistestmethodislimitedtosampleshavinganinitialboilingpoint(IBP)greaterthan126x00B0;C(259x00B0;F)orthefirstcalibrationpointandtosamplescontaininglubricantbaseoilswithendpointslessthan615x00B0;C(1139x00B0;F)orthelastn-paraffinsinthecalibrationmixture.Byusingsomeinstrumentsandcolumns,itispossibletoextendtheusefulrangeofthetestmethod.1.3Thistestmethodusestheprinciplesofsimulateddistillationmethodology.1.4Thistestmethodmaybeappliedtobothlubricantoilbasestocksandfinishedlubricantscontainingadditivepackages.Theseadditivepackagesgenerallycontainhighmolecularweight,nonvolatilecomponentsthatdonotelutefromthechromatographiccolumnunderthetestconditions.Thecalculationprocedureusedinthistestmethodassumesthatallofthesampleelutesfromthecolumnandisdetectedwithuniformresponse.Thisassumptionisnottrueforsampleswithnonvolatileadditives,andapplicationofthistestmethodundersuchconditionswillyieldresultshigherthanexpected.Forthisreason,resultsbythistestmethodarereportedasareapercentofoil.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesstatedininch-poundunitsareprovidedforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:9P.;A4
【正文语种】:英语
【英文标准名称】:Aerospaceseries-Screws,100°countersunkhead,sixloberecess,shortthread,inheatresistingsteelFE-PA2601(A286),passivated-Classification:900MPa(atambienttemperature)/650°C;GermanandEnglishversionEN4634:2009
【原文标准名称】:航空航天系列.钝化的FE-PA2601(A286)型耐热钢短螺纹六瓣凹槽100°沉头螺钉.分类:900MPa(环境温度下)/650℃;德文版本和英文版本EN4634-2009
【标准号】:EN4634-2009
【标准状态】:现行
【国别】:
【发布日期】:2011-01
【实施或试行日期】:
【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】:航空航天运输;飞行器地面支持设备;质量保证;航空运输;沉头螺钉;设计;名称与符号;尺寸;尺寸规格;紧固件;高温;处理;惰性气体铠装电弧焊;作标记;钝化;螺钉;六角形凹槽;六瓣凹槽;航天运输;规范(验收);钢;钢管;公差(测量)
【英文主题词】:Aerospacetransport;Airtransport;Countersunkheadscrews;Design;Designations;Dimensions;Fasteners;Hightemperature;Marking;Passivated;Screws(bolts);Sixloberecess;Spacetransport;Specification(approval);Steels;Tolerances(measurement)
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_20
【页数】:19P;A4
【正文语种】:英语
