NF C93-406-1-2002 经质量评估的直流低频模拟及数字高速数据应用设备用连接器.第1部分:一般规范
作者:标准资料网 时间:2024-05-20 13:13:40 浏览:8353
来源:标准资料网
【英文标准名称】:Connectorswithassessedquality,foruseind.c.,lowfrequencyanalogueandindigitalhighspeeddataapplications-Part1:genericspecification.
【原文标准名称】:经质量评估的直流低频模拟及数字高速数据应用设备用连接器.第1部分:一般规范
【标准号】:NFC93-406-1-2002
【标准状态】:现行
【国别】:法国
【发布日期】:2002-10-01
【实施或试行日期】:2002-10-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:低频工程;电插头;电气工程;能力鉴定;直流电压;直流装置;数据率;低频;连接器元件;规范;试验要求;数据传送;数字的;数字信号;使用;插接件连接;质量评定;应用;总规范;模拟信号;数字工程;定义
【英文主题词】:Analoguesignals;Applications;Capabilityapproval;Connectorelements;Connectoredjoints;Datarates;Datatransfer;Definition;Definitions;Digital;Digitalengineering;Digitalsignals;Directcurrentinstallations;Directvoltage;Electricplugs;Electricalengineering;Genericspecification;Lowfrequencies;Low-frequencyengineering;Qualityassessment;Specification;Testingrequirements;Use
【摘要】:
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:30P.;A4
【正文语种】:其他
基本信息
| 标准名称： | 冷冲模凹、凸模装置 快速凸模(Ⅱ型) |
| 中标分类： |
机械 >>
工艺装备 >>
模具 |
| 发布日期： | 1984-12-24 |
| 实施日期： | 1985-07-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 2页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 机械 工艺装备 模具
【英文标准名称】:StandardTestMethodforBoilingPointDistributionofSampleswithResiduesSuchasCrudeOilsandAtmosphericandVacuumResiduesbyHighTemperatureGasChromatography
【原文标准名称】:用高温气相色谱法测定带有类似原油和大气以及真空残留物的样品的沸点分布的标准试验方法
【标准号】:ASTMD7169-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:高温;气相色谱法;气体;大气的;残留物;物理化学法;分配;分析方法;试样;沸点;原油;真空的;试验
【英文主题词】:boilingpointdistribution;crudeoils;cutpointintervals;distillationresidues;lubricants;residues;simulateddistillation
【摘要】:Thedeterminationoftheboilingpointdistributionofcrudeoilsandvacuumresidues,aswellasotherpetroleumfractions,yieldsimportantinformationforrefineryoperation.Theseboilingpointdistributionsprovideinformationastothepotentialmasspercentyieldofproducts.Thistestmethodmayprovideusefulinformationthatcanaidinestablishingoperationalconditionsintherefinery.Knowledgeoftheamountofresidueproducedisimportantindeterminingtheeconomicsoftherefiningprocess.1.1Thistestmethodcoversthedeterminationoftheboilingpointdistributionandcutpointintervalsofcrudeoilsandresiduesbyusinghightemperaturegaschromatography.Theamountofresidue(orsamplerecovery)isdeterminedusinganexternalstandard.1.2Thistestmethodextendstheapplicabilityofsimulateddistillationtosamplesthatdonotelutecompletelyfromthechromatographicsystem.Thistestmethodisusedtodeterminetheboilingpointdistributionthroughatemperatureof720C.Thistemperaturecorrespondstotheelutionofn-C100.1.3Thistestmethodisusedforthedeterminationofboilingpointdistributionofcrudeoils.Thistestmethodusescapillarycolumnswiththinfilms,whichresultsintheincompleteseparationofC4-C8inthepresenceoflargeamountsofcarbondisulfide,andthusyieldsanunreliableboilingpointdistributioncorrespondingtothiselutioninterval.Inaddition,quenchingoftheresponseofthedetectoremployedtohydrocarbonselutingduringcarbondisulfideelution,resultsinunreliablequantitativeanalysisoftheboilingdistributionintheC4-C8region.Sincethedetectordoesnotquantitativelymeasurethecarbondisulfide,itssubtractionfromthesampleusingasolvent-onlyinjectionandcorrectionstothisregionviaquenchingfactors,resultsinanapproximatedeterminationofthenetchromatographicarea.Aseparate,higherresolutiongaschromatograph(GC)analysisofthelightendportionofthesamplemaybenecessaryinordertoobtainamoreaccuratedescriptionoftheboilingpointcurveintheintervalinquestion(see).1.4Thistestmethodisalsodesignedtoobtaintheboilingpointdistributionofotherincompletelyelutingsamplessuchasatmosphericresidues,vacuumresidues,etc.,thatarecharacterizedbythefactthatthesamplecomponentsareresolvedfromthesolvent.1.5Thistestmethodisnotapplicablefortheanalysisofmaterialscontainingaheterogeneouscomponentsuchaspolyestersandpolyolefins.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificwarningstatementsaregiveninSection8.
【中国标准分类号】:Z15
【国际标准分类号】:71_040_50
【页数】:17P.;A4
【正文语种】:
