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IEC 60793-2-10-2007 光纤.第2-10部分:产品规范.A1类多模纤维用分规范

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【英文标准名称】:Opticalfibres-Part2-10:Productspecifications-SectionalspecificationforcategoryA1multimodefibres
【原文标准名称】:光纤.第2-10部分:产品规范.A1类多模纤维用分规范
【标准号】:IEC60793-2-10-2007
【标准状态】:作废
【国别】:国际
【发布日期】:2007-06
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC86A
【标准类型】:()
【标准水平】:()
【中文主题词】:设计;尺寸;电气工程;光纤;总论;机械性能;多模纤维;光波导;光电子学;产品规范;分规范;规范;规范(验收);远程通信;传输特性
【英文主题词】:Design;Dimensions;Electricalengineering;Environmentalrequirements;Fibreoptics;Generalsection;Mechanicalproperties;Multimodefibres;Opticalwaveguides;Optoelectronics;Productspecifications;Properties;Sectionalspecification;Specification;Specification(approval);Telecommunication;Testing;Transmissioncharacteristics
【摘要】:ThispartofIEC60793isapplicabletoopticalfibretypesA1a,A1b,andAid.Thesefibresareusedorcanbeincorporatedininformationtransmissionequipmentandopticalfibrecables.TypeA1afibreisa50/125μmgradedindexfibre.TypeA1a.1appliesto50/125(imfibre,whileA1a.2appliesto850nmlaser-optimised50/125urnfibre.TypeA1bappliesto62,5/125μmgradedindexfibreandAidappliesto100/140μmgradedindexfibre.Otherapplicationsinclude,butarenotrestrictedto,thefollowing:shortreach,highbit-ratesystemsintelephony,distributionandlocalnetworkscarryingdata,voiceand/orvideoservices;on-premisesintra-buildingandinter-buildingfibreinstallationsincludingLANs,PBXs,video,variousmultiplexinguses,outsidetelephonecableplantuse,andmiscellaneousrelateduses.Threetypesofrequirementsapplytothesefibres:-generalrequirements,asdefinedinIEC60793-2;-specificrequirementscommontothecategoryA1multimodefibrescoveredinthisstandardandwhicharegiveninClause3;-particularrequirementsapplicabletoindividualfibretypesorspecificapplications,whicharedefinedinthenormativefamilyspecificationannexes.
【中国标准分类号】:M33
【国际标准分类号】:33_180_10
【页数】:66P;A4
【正文语种】:英语


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【英文标准名称】:Machinetools-Mountingofplaingrindingwheelsbymeansofhubflanges
【原文标准名称】:机床.采用轮毂法兰方式安装平面磨轮
【标准号】:BSISO666-1996
【标准状态】:作废
【国别】:英国
【发布日期】:1997-10-15
【实施或试行日期】:1997-10-15
【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】:厚度;使用说明;尺寸;粗糙度(表面);螺钉;作标记;设计;粗糙度;砂轮;套筒式法兰;夹紧用法兰;砂轮凸缘;机床;机床部件;磨床;间隙;尺寸公差;抓取器
【英文主题词】:Characteristics;Dimensions;Fixtures;Flanges;Grindingmachines;Grindingwheels;Hub-typeflanges;Machinetools;Manufacturing;Marking;Specification(approval);Testing;Tools;Wells
【摘要】:Specifiescertaindimensionsofwheelhubflangesforplaingrindingwheelsforfettlingandsharpening,externalcylindrical(exceptcentreless)andsurfacegrinding.
【中国标准分类号】:J43
【国际标准分类号】:25_100_70
【页数】:12P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforAutoignitionTemperatureofLiquidChemicals
【原文标准名称】:液体化学品自燃温度的试验方法
【标准号】:ASTME659-1978(2005)
【标准状态】:现行
【国别】:
【发布日期】:1978
【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】:E27.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:药液;温度;试验
【英文主题词】:
【摘要】:Autoignition,byitsverynature,isdependentonthechemicalandphysicalpropertiesofthematerialandthemethodandapparatusemployedforitsdetermination.Theautoignitiontemperaturebyagivenmethoddoesnotnecessarilyrepresenttheminimumtemperatureatwhichagivenmaterialwillself-igniteinair.Thevolumeofthevesselusedisparticularlyimportantsincelowerautoignitiontemperatureswillbeachievedinlargervessels.(SeeAppendixX2.)Vesselmaterialcanalsobeanimportantfactor.Thetemperaturesdeterminedbythistestmethodarethoseatwhichairoxidationleadstoignition.Thesetemperaturescanbeexpectedtovarywiththetestpressureandoxygenconcentration.Thistestmethodisnotdesignedforevaluatingmaterialswhicharecapableofexothermicdecomposition.Forsuchmaterials,ignitionisdependentuponthethermalandkineticpropertiesofthedecomposition,themassofthesample,andtheheattransfercharacteristicsofthesystem.Thistestmethodcanbeemployedforsolidchemicalswhichmeltandvaporizeorwhichreadilysublimeatthetesttemperature.Nocondensedphase,liquidorsolid,shouldbepresentwhenignitionoccurs.Thistestmethodisnotdesignedtomeasuretheautoignitiontemperatureofmaterialswhicharesolidsorliquidsatthetesttemperature(forexample,wood,paper,cotton,plastics,andhigh-boilingpointchemicals).Suchmaterialswillthermallydegradeintheflaskandtheaccumulateddegradationproductsmayignite.Thistestmethodwasdevelopedprimarilyforliquidchemicalsbuthasbeenemployedtotestreadilyvaporizedsolids.Responsibilityforextensionofthismethodtosolidsofunknownthermalstability,boilingpoint,ordegradationcharacteristicsrestswiththeoperator.1.1Thistestmethodcoversthedeterminationofhot-andcool-flameautoignitiontemperaturesofaliquidchemicalinairatatmosphericpressureinauniformlyheatedvessel.Note18212;Withincertainlimitations,thistestmethodcanalsobeusedtodeterminetheautoignitiontemperatureofsolidchemicalswhichreadilymeltandvaporizeattemperaturesbelowthetesttemperature.1.2Thisstandardshouldbeusedtomeasureanddescribethepropertiesofmaterials,products,orassembliesinresponsetoheatandflameundercontrolledlaboratoryconditionsandshouldnotbeusedtodescribeorappraisethefirehazardorfireriskofmaterials,products,orassembliesunderactualfireconditions.However,resultsofthistestmaybeusedaselementsofafireriskassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttoanassessmentofthefirehazardofaparticularenduse.
【中国标准分类号】:C80
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】: