DIN 38409 T.3-1983 德国对水.废水和淤泥的统一检验法.总的作用参数和物料参数(H组).总的有机化合碳的测定(TOC)(H3)
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【英文标准名称】:Germanstandardmethodsfortheexaminationofwater,wastewaterandsludge;generalmeasuresofeffectsandsubstances(groupH);determinationoftotalorganiccarbon(TOC)(H3)
【原文标准名称】:德国对水.废水和淤泥的统一检验法.总的作用参数和物料参数(H组).总的有机化合碳的测定(TOC)(H3)
【标准号】:DIN38409T.3-1983
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:StandardGuideforOrderingLowVoltage(1000VACorLess)AlternatingCurrentElectricMotorsforShipboardService&8212;UptoandIncludingMotorsof500Horsepower
【原文标准名称】:船上服务用低压(1000VAC或以下)交流电动机订购的标准指南.最高至500马力的发动机
【标准号】:ASTMF2361-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:F25.10
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:交流电动机;低电压;电动机;订购;服务设施;造船
【英文主题词】:generalpurposemotors;multi-speedmotors;polyphasemotors
【摘要】:1.1Thisguidecoverstherequiredbasicorderinginformationforlowvoltage(1000VACorless)general-purpose,commercial,universal,smallandmediumsizedalternatingcurrentelectricmotorsforshipboarduse,uptoandincludingmotorsof500hp.1.2Theelectricmotorscoveredbythisguidearegeneral-purpose(GP)motorsintendedtodrivecommonshipboardmechanicalmachinerysuchasfans,blowers,centrifugalandscrewpumps.1.3Thisguideisnotintendedtobeusedtoorderspecial-purpose(SP)motorsordefinite-purposemotors(forexample,cryogenicservice)ormotorsforuseinhazardous(classified)locationsasdefinedbytheNationalElectricalCode(NFPA70).1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:U61
【国际标准分类号】:47_020_20
【页数】:3P.;A4
【正文语种】:
【英文标准名称】:StandardPracticeforContinuousMonitoringofAcousticEmissionfromMetalPressureBoundaries
【原文标准名称】:连续监测来自金属压力界面的声发射的标准实施规程
【标准号】:ASTME1139-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:E07.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:声学;界面;金属;噪声辐射;无损检验;压力;声音传播;监督(认可);测试
【英文主题词】:acousticemission;acousticemissionsourcelocation;continuousmonitoring;leakdetection;metalpiping;metalpressurevessels;pressuresystems;Acousticemission(AE)testing--metals/metallicmaterials;Automatedprocedures--metals/alloys;Contin
【摘要】:p>Acousticemissionexaminationofastructurerequiresapplicationofamechanicalorthermalstimulus.Inthiscase,thesystemoperatingconditionsprovidethestimulation.Duringoperationofthepressurizedsystem,AEfromactivediscontinuitiessuchascracksorfromotheracousticsourcessuchasleakageofhigh-pressure,high-temperaturefluidscanbedetectedbyaninstrumentationsystemusingsensorsmountedonthestructure.Thesensorsareacousticallycoupledtothesurfaceofthestructurebymeansofacouplantmaterialorpressureontheinterfacebetweenthesensingdeviceandthestructure.Thisfacilitatesthetransmissionofacousticenergytothesensor.Whenthesensorsareexcitedbyacousticemissionenergy,theytransformthemechanicalexcitationsintoelectricalsignals.ThesignalsfromadetectedAEsourceareelectronicallyconditionedandprocessedtoproduceinformationrelativetosourcelocationandotherparametersneededforAEsourcecharacterizationandevaluation.AEmonitoringonacontinuousbasisisacurrentlyavailablemethodforcontinuoussurveillanceofastructuretoassessitscontinuedintegrity.TheuseofAEmonitoringinthiscontextistoidentifytheexistenceandlocationofAEsources.Also,informationisprovidedtofacilitateestimatingthesignificanceofthedetectedAEsourcerelativetocontinuedpressuresystemoperation.Sourcelocationaccuracyisinfluencedbyfactorsthataffectelasticwavepropagation,bysensorcoupling,andbysignalprocessorsettings.ItispossibletomeasureAEandidentifyAEsourcelocationsofindicationsthatcannotbedetectedbyotherNDTmethods,duetofactorsrelatedtomethodological,material,orstructuralcharacteristics.InadditiontoimmediateevaluationoftheAEsources,apermanentrecordofthetotaldatacollected(AEpluspressuresystemparametersmeasured)providesanarchivalrecordwhichcanbere-evaluated.1.1Thispracticeprovidesguidelinesforcontinuousmonitoringofacousticemission(AE)frommetalpressureboundariesinindustrialsystemsduringoperation.Examplesarepressurevessels,piping,andothersystemcomponentswhichservetocontainsystempressure.Pressureboundariesotherthanmetal,suchascomposites,arespecificallynotcoveredbythisdocument.1.2ThefunctionsofAEmonitoringaretodetect,locate,andcharacterizeAEsourcestoprovidedatatoevaluatetheirsignificancerelativetopressureboundaryintegrity.Thesesourcesarethoseactivatedduringsystemoperation,thatis,nospecialstimulusisappliedtoproduceAE.Othermethodsofnondestructivetesting(NDT)maybeused,whenthepressureboundaryisaccessible,tofurtherevaluateorsubstantiatethesignificanceofdetectedAEsources.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,seeSection6.
【中国标准分类号】:H20
【国际标准分类号】:17_140_01
【页数】:6P.;A4
【正文语种】:
