BS EN 61188-7-2009 印制电路板和印制电路板组件.设计和使用.CAD文库结构的电子元件零定位

作者:标准资料网 时间:2024-05-17 08:37:57   浏览:9609   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Printedboardsandprintedboardassemblies.Designanduse.ElectroniccomponentzeroorientationforCADlibraryconstruction
【原文标准名称】:印制电路板和印制电路板组件.设计和使用.CAD文库结构的电子元件零定位
【标准号】:BSEN61188-7-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-09-30
【实施或试行日期】:2009-09-30
【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】:组装;计算机辅助设计(CAD);计算机辅助设计;坐标(数学);数据采集;数据传送;设计;电气工程;电子工程;电子设备及元件;设备;法兰面;几何;图书馆目录;方位;印制电路;印制电路板;研究方法;表面安装设备;需要空间;规范(验收);规范语言;表面安装;技术转让;终端区域;通孔安装
【英文主题词】:Assembling;CAD;Computeraideddesign;Coordinates(mathematics);Dataacquisition;Datatransfer;Design;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Equipment;Flangefacing;Geometry;Librarycatalogues;Orientation;Printedcircuits;Printed-circuitboards;Researchmethods;SMD;Spacerequired;Specification(approval);Specificationlanguages;Surfacemounting;Technologytransfer;Terminalareas;Trough-holemounting
【摘要】:ThispartofIEC61188establishesaconsistenttechniqueforthedescriptionofelectroniccomponentorientation,andtheirlandpatterngeometries.Thisfacilitatesandencouragesacommondatacaptureandtransfermethodologyamongstandbetweenglobaltradingpartners.
【中国标准分类号】:L30
【国际标准分类号】:31_180
【页数】:24P.;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:Operationsandbathrelatingtodry-cleaningmachines;vocabulary
【原文标准名称】:干洗机的操作与液比词汇两种语言版
【标准号】:ISO8229-1991
【标准状态】:现行
【国别】:国际
【发布日期】:1991-08
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC72
【标准类型】:()
【标准水平】:()
【中文主题词】:处理;词汇;化学清洗;清洁设备;干洗;定义;干式清洁设备
【英文主题词】:Chemicalcleaning;Cleaningequipment;Definition;Definitions;Drycleaning;Dry-cleaningequipment;Multilingual;Plantsforcleaning;Treatment;Vocabulary
【摘要】:Specifies22termsanddefinitionsinEnglishandFrench.Somemaybeusedwithdifferentmeaningsinotherfields.ContainsthealphabeticalindexesinEnglishandFrench.
【中国标准分类号】:Y62
【国际标准分类号】:97_060
【页数】:4P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforDeterminationofSulfurCompoundsinNaturalGasandGaseousFuelsbyGasChromatographyandFlamePhotometricDetection
【原文标准名称】:用气相色谱和火焰光度检测对天然气和气态燃料中含硫化合物测定的标准试验方法
【标准号】:ASTMD6228-1998(2003)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D03.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:火焰光度检测;含硫化合物;加嗅剂;气相色谱法
【英文主题词】:flamephotometricdetection;gaschromatography;sulfurcompounds,odorants
【摘要】:Manysourcesofnaturalgasandpetroleumgasescontainvaryingamountsandtypesofsulfurcompounds,whichareodorous,corrosivetoequipment,andcaninhibitordestroycatalystsusedingasprocessing.Theiraccuratemeasurementisessentialtogasprocessing,operation,andutilization.Smallamounts,typically,1to4ppmvofsulfurodorantcompounds,areaddedtonaturalgasandliquefiedpetroleum(LP)gasesforsafetypurposes.Someodorantcompoundscanbereactiveandmaybeoxidized,formingmorestablecompoundshavinglowerodorthresholds.Thesegaseousfuelsareanalyzedforsulfurodorantstohelpensureappropriateodorantlevelsforsafety.Thistestmethodoffersatechniquetodetermineindividualsulfurspeciesingaseousfuelandthetotalsulfurcontentbycalculation.Gaschromatographyisusedcommonlyandextensivelytodetermineothercomponentsingaseousfuelsincludingfixedgasandorganiccomponents(seeTestMethodD1945).ThistestmethoddictatestheuseofaspecificGCtechniquewithoneofthemorecommondetectorsformeasurement.1.1Thistestmethodcoversthedeterminationofindividualvolatilesulfur-containingcompoundsingaseousfuelsbygaschromatography(GC)withflamephotometricdetection(FPD).Thedetectionrangeforsulfurcompoundsisfrom20to20000picograms(pg)ofsulfur.Thisisequivalentto0.02to20mg/m3or0.014to14ppmvofsulfurbasedupontheanalysisofa1-mLsample.1.2ThistestmethoddescribesaGC-FPDmethodusingaspecificcapillaryGCcolumn.OtherGC-FPDmethods,withdifferencesinGCcolumnandequipmentsetupandoperation,maybeusedasalternativemethodsforsulfurcompoundanalysiswithdifferentrangeandprecision,providedthatappropriateseparationofthesulfurcompoundsofinterestcanbeachieved.1.3Thistestmethoddoesnotintendtoidentifyallindividualsulfurspecies.Totalsulfurcontentofsamplescanbeestimatedfromthetotaloftheindividualcompoundsdetermined.Unknowncompoundsarecalculatedasmonosulfur-containingcompounds.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesstatedininch-poundunitsareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E24
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】: