EN 60793-1-45-2003 光纤.第1-45部分:测量方法和试验规程.模场直径
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【英文标准名称】:Opticalfibres-Part1-45:Measurementmethodsandtestprocedures-Modefielddiameter(IEC60793-1-45:2001+Corrigendum2002,modified);GermanversionEN60793-1-45:2003
【原文标准名称】:光纤.第1-45部分:测量方法和试验规程.模场直径
【标准号】:EN60793-1-45-2003
【标准状态】:现行
【国别】:
【发布日期】:2004-07
【实施或试行日期】:2004-07-01
【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】:光纤;抽样方法;场强(电);膨胀;试验;尺寸;场径;单模纤维;光波导;数学计算;规范(验收);测量;电气工程;特性;电磁场;试样;测量技术
【英文主题词】:Dimensions;Electricalengineering;Electromagneticfields;Expansion;Fibreoptics;Fielddiameter;Fieldstrength(electric);Mathematicalcalculations;Measurement;Measuringtechniques;Monomodefibres;Opticalwaveguides;Properties;Samplingmethods;Specification(approval);Testspecimens;Testing
【摘要】:
【中国标准分类号】:M33
【国际标准分类号】:33_180_10
【页数】:32P.;A4
【正文语种】:英语
【英文标准名称】:StandardSpecificationforMixingPlantsforHot-Mixed,Hot-LaidBituminousPavingMixtures
【原文标准名称】:热搅拌、热铺沥青铺面混合料用搅拌设备的标准规范
【标准号】:ASTMD995-1995
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:道路建筑;路面;施工材料;施工材料;建筑;公路建设;沥青;路面(道路);混合;工业;沥青制品;混合物
【英文主题词】:constructionmaterials;pavement;industries;bituminousproducts;bitumens;mixingplants;construction;roadconstruction;mixtures;pavements(roads);mixing
【摘要】:
【中国标准分类号】:P97
【国际标准分类号】:91_220
【页数】:6P;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforFull-ScaleOxygenConsumptionCalorimetryFireTests
【原文标准名称】:完全氧燃烧热量测量火灾试验的标准实施规程
【标准号】:ASTME2067-2008
【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】:E05.21
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:calorimetry;fire;full-scaletest;heatrelease;oxygenconsumption;smoke;Calibration--laboratoryanalysisinstrumentation;Firetesting--buildingmaterials;Full-scaletesting;Heatrelease;Oxygenconsumptioncalorimetry;Smokeanalysis;Smokeobscur
【摘要】:Theoxygenconsumptionprinciple,usedforthemeasurementsdescribedhere,isbasedontheobservationthat,generally,thenetheatofcombustionisdirectlyrelatedtotheamountofoxygenrequiredforcombustion(1).Approximately13.1MJofheatarereleasedper1-kgofoxygenconsumed.Testspecimensinthetestareburnedinambientairconditions,whilebeingsubjectedtoaprescribedexternalheatingsource.Thistechniqueisnotappropriateforuseonitsownwhenthecombustiblefuelisanoxidizeroranexplosiveagent,whichreleaseoxygen.Furtheranalysisisrequiredinsuchcases(seeAppendixX2).Theheatreleaseisdeterminedbythemeasurementoftheoxygenconsumption,asdeterminedbytheoxygenconcentrationandtheflowrateinthecombustionproductstream,inafullscaleenvironment.Theprimarymeasurementsareoxygenconcentrationandexhaustgasflowrate.Additionalmeasurementsincludethespecimenignitability,thesmokeobscurationgenerated,thespecimenmasslossrate,theeffectiveheatofcombustionandtheyieldsofcombustionproductsfromthetestspecimen.Theoxygenconsumptiontechniqueisusedindifferenttypesoftestmethods.Intermediatescale(TestMethodE1623,UL1975)andfullscale(TestMethodD5424,TestMethodD5537,TestMethodE1537,TestMethodE1590,TestMethodE1822,ISO9705,NFPA265,NFPA266,NFPA267,NFPA286,UL1685)testmethods,aswellasunstandardizedroomscaleexperimentsfollowingGuideE603,usingthistechniqueinvolvealargeinstrumentedexhausthood,whereoxygenconcentrationismeasured,eitherstandingaloneorpositionedoutsideadoorway.Alargetestspecimenisplacedeitherunderthehoodorinsidetheroom.Thispracticeisintendedtoaddressissuesassociatedwithequipmentrequiringalargeinstrumentedhoodandnotstand-alonetestapparatuseswithsmalltestspecimens.Smallscaletestmethodsusingthistechnique,suchasTestMethodsD6113,E1354,E1474andE1740,aswellasISO5660internationally,arebasedonastand-aloneapparatus,whereinasmallspecimenistestedwithintheequipment.Anothersmallscaleheatreleasetestmethod,TestMethodE906,doesnotusetheoxygenconsumptiontechnique.Throughoutthispractice,testequipmentisreferencedtoprovidehelpfulguidancetotestfacilities.Substitutionofequivalent,orbetter,testmeasuringdevicesispermissible.1.1Thispracticedealswithmethodstoconstruct,calibrate,andusefullscaleoxygenconsumptioncalorimeterstohelpminimizetestingresultdiscrepanciesbetweenlaboratories.1.2ThemethodologydescribedhereinisusedinanumberofASTMtestmethods,inavarietyofunstandardizedtestmethods,andforresearchpurposes.Thispracticewillfacilitatecoordinationofgenericrequirements,whicharenotspecifictotheitemundertest.1.3Theprincipalfire-test-responsecharacteristicsobtainedfromthetestmethodsusingthistechniquearethoseassociatedwithheatreleasefromthespecimenstested,asafunctionoftime.Otherfire-test-responsecharacteristicsalsoaredetermined.1.4Thispracticeisintendedtoapplytotheconductionofdifferenttypesoftests,includingbothsomeinwhichtheobjectiveistoassessthecomparativefireperformanceofproductsreleasinglowamountsofheatorsmokeandsomeinwhichtheobjectiveistoassesswhetherflashoverwilloccur.1.5Thispracticedoesnotprovidepass/failcriteriathatcanbeusedasaregulatorytool,nordoesitdescribea......
【中国标准分类号】:C80
【国际标准分类号】:17_200_20
【页数】:24P.;A4
【正文语种】:英语