BS EN 12574-2-2006 固定的废弃物容器.性能要求和试验方法

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下一篇: BS EN 12574-1-2006 固定的废物箱.耳轴、双耳轴或袖珍提升装置用带平或圆形盖小于10000升容量的废物箱.尺寸和设计

【英文标准名称】:Aerospace;ISO-fitsforairframeconstruction(exceptmountingofrollerbearings)
【原文标准名称】:航空航天.飞机结构的ISO配合(滚柱轴承的安装除外)
【标准号】:DIN9015-1-1986
【标准状态】:现行
【国别】:德国
【发布日期】:1986-12
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:标准公差;ISO配合;航空航天;尺寸协调;多孔结构;飞机机架;配合;井;公差;航空航天运输;尺寸公差;航天运输;尺寸;航空运输
【英文主题词】:aerospacetransport;standardtolerances;wells;spacetransport;dimensionalcoordination;dimensions;fits;airtransport;isofits;cellularstructures;dimensionaltolerances;airframes;tolerances(measureme
【摘要】:ThisstandardisintendedforuseinselectingfittolerancesandtolerancezonecombinationsforairframeapplicationsintheaerospaceindustryandtoreducethevarietyofpossiblecombinationsresultingfromISO/R286soastominimizethenumberoftools,gaugesandmeasuringdevices.Alltolerancezonesselectedandthecombinationsthereofarebasedonexperiencesmadeinairframeconstruction.#,,#
【中国标准分类号】:J04;V04
【国际标准分类号】:17_040_10;49_035
【页数】:5P;A4
【正文语种】:德语


【英文标准名称】:Reciprocatinginternalcombustionenginedrivenalternatingcurrentgeneratingsets-Measurementofairbornenoisebytheenvelopingsurfacemethod
【原文标准名称】:往复式内燃机驱动交流发电机组.用包络表面法对空气中噪音进行测定
【标准号】:BS7698-10-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-01-15
【实施或试行日期】:1999-01-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:往复式发动机;法规;声强;位置;原动机;水路运输工程部件;内燃机;报告;静止的;声学测量;名称与符号;误差修正;易动的;交流发电机;噪声(环境的);准确度;电气设备;发电机;固定的;电机;试验条件
【英文主题词】:Acoustictesting;Acoustics;Definition;Definitions;Internalcombustionengines;Measurementofairbornenoise;Motorgenerator;Noise
【摘要】:ThispartofISO8528definesmeasurementmethodsforthedeterminationofairbornenoiseemittedbyreciprocatinginternalcombustionenginedrivengeneratingsetsinsuchawaythatthetotalofrelevantnoiseemissions,e.g.exhaustandcoolingsystemnoise,togetherwithallothersourcesofenginenoise,areevaluatedonasimilarbasistoyieldcomparableresults.However,whentheexhaustandcoolingsystemsareductedtoaremotesitetheirnoisecontributionisnottobeincludedinthispartofISO8528.Theessentialnoiseemissioncharacteristicvalueisthesoundpowerlevel.TheresultsofmeasurementtakeninaccordancewiththispartofISO8528areclassifiedaseitheraccuracygrade2orgrade3dependingonwhichacousticmeasurementconditionsarecompliedwith.Accuracygrade2(i.e.,engineeringmethodinaccordancewithISO3744)requiresthemeasuringareatobeasubstantiallyacoustic-freefieldoverareflectingplane(withanenvironmentalcorrectionK2A≤2dB)andwithnegligiblebackgroundnoiselevel(backgroundnoisecorrectionK1A≤1,3dB).Accuracygrade3(i.e.surveymethodinaccordancewithISO3746)requirestheenvironmentalcorrectionK2Atobelessorequalthan7dB,andthebackgroundnoisecorrectionK1Atobelessorequalthan3dB.FortheoperationofageneratingsetundersteadyconditionsthispartofISO8528allowsforthecalculationoftheA-weightedsoundpowerlevelaswellasappropriateoctaveoronethirdoctavesoundpowerlevelfortheappropriateaccuracygrade.ThispartofISO8528appliestoRICenginedrivenACgeneratingsetsforfixedandmobileapplicationswithrigidorflexiblemountings.Itisapplicableforlandandmarineuse,excludinggeneratingsetsusedonaircraftortopropellandvehiclesandlocomotives.NOTE1ThispartofISO8528hasbeendevelopedforRICenginedrivenACgeneratingsets,butitcanalsobeappliedtoRICenginedrivenDCgeneratingsets.NOTE2Forsomespecificapplications(e.g.essentialhospitalsupplies,highrisebuildings,etc.)supplementaryrequirementsmaybenecessary.TheprovisionsofthispartofISO8528shouldberegardedasabasis.NOTE3Truecomparisonscanonlybemadebetweengeneratingsetswhenthemeasurementareclassifiedinthesameaccuracygrade.
【中国标准分类号】:K52
【国际标准分类号】:17_140_20;29_160_40
【页数】:22P.;A4
【正文语种】:英语