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BS EN ISO 11204-1996 声学.机械装置及设备发出的噪声.工作地点和其它试验场所声压级的测量.测试要求环境条件的改变

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【英文标准名称】:Acoustics-Noiseemittedbymachineryandequipment-Measurementofemissionsoundpressurelevelsataworkstationandatotherspecifiedpositions-Methodrequiringenvironmentalcorrections
【原文标准名称】:声学.机械装置及设备发出的噪声.工作地点和其它试验场所声压级的测量.测试要求环境条件的改变
【标准号】:BSENISO11204-1996
【标准状态】:作废
【国别】:英国
【发布日期】:1996-11-15
【实施或试行日期】:1996-11-15
【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】:数学计算;试验设备;准确度;再现性;测量特征;自然工作条件;试验条件;传声器;噪声;现场试验;声学测量;误差修正;操作工位;等级(质量);噪声(环境的);声学;声强
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoise;Anatomicalconfigurations;Control;Corrrections;Definitions;Emission;Emissionmeasurement;Environment;Ergonomics;Errorcorrection;Externalnoise;Fixings;Frequencies;Head(anatomy);Installations;Instruments;Machinenoise;Machines;Measurement;Measurementconditions;Measurementduration;Measuringenvironment;Measuringincertainity;Measuringinstruments;Measuringtechniques;Methods;Microphones;Noise;Noiseemissions;Noise(environmental);Noisemeasurements;Operatingstations;Operation;Operators;Persons;Position;Radiation;Seats;Sitting;Soundintensity;Soundlevels;Soundpressure;Soundpressurelevel;Soundpropagation;Status;Tests;Workingplaces
【摘要】:1GeneralThisInternationalStandardspecifiesamethodformeasuringtheemissionsoundpressurelevelsofmachineryandequipment,ataworkstationandatotherspecifiedpositionsnearby,inanyenvironmentwhichmeetscertainqualificationrequirements.EmissionsoundpressurelevelsaremeasuredasA-weightedand,ifrequired,C-weightedpeak,andinfrequencybands.NOTE1ThecontentsofthisandrelatedInternationalStandardsaresummarizedintable1ofISO11200:1995.Amethodisgivenfordeterminingalocalenviron-mentalcorrection(theacceptablemaximumvalueofwhichisspecified)tobeappliedtothemeasuredsoundpressurelevelstoexcludetheeffectsofre-flectionsfromreflectingsurfacesotherthantheplaneonwhichthemachineryorequipmentisplaced.Thiscorrectionisbaseduponthemeansoundpressurelevelonameasurementsurface,thesoundpressurelevelmeasuredataspecifiedposition,andeitheranenvironmentalindicatorortheequivalentabsorptionareaofthetestroom.Thegradeofaccuracyofthemeasurements(engineeringorsurvey)dependsuponthevauleofthelocalenvironmentalcorrection.Aworkstationisoccupiedbyanoperator.Itmaybelocatedinopenspaceintheroomwherethesourceoperates,orinacabfixedtothesource,orinanen-closureremotefromthesource.Oneormorespeci-fiedpositionsmaybelocatedinthevicinityofanattendedorunattendedmachine.Suchpositionsaresometimesreferredtoasbystanderpositions.ThisInternationalStandardspecifiesrequirementsonthetestenvironment.Instructionsaregivenfortheinstallationandoperationofthemachineundertestandforthechoiceofmicrophonepositionsfortheworkstationandforotherspecifiedpositions.Thepurposeofthemeasurementsistopermitcompar-isonoftheperformanceofdifferentunitsofagivenfamilyofmachineryorequipment,underdefineden-vironmentalconditionsandstandardizedmountingandoperatingconditions.Thedataobtainedmayalsobeusedforthedeclarationandverificationofemis-sionsoundpressurelevelsasspecifiedinISO4871.NOTE2Atanygivenpositioninrelationtoaparticularmachine,andforgivenmountingandoperatingconditions,theemissionsoundpressurelevelsdeterminedbythemethodofthisInternationalStandardwillingeneralbelowerthanthedirectlymeasuredsoundpressurelevelsforthesamemachineinthetypicalworkroomwhereitisused.Thisisduetoreverberationandthecontributionsofothermachines.Amethodofcalculatingthesoundpressurelev-elsinthevicinityofamachineoperatingaloneinaworkroomisgiveninISO11690-3.Commonlyobserveddifferencesare1dBto5dB,butinextremecasesthedif-ferencemaybeevengreater.2TypesofnoiseandnoisesourcesThemethodspecifiedinthisInternationalStandardisapplicabletoalltypesofmachinery,bothmovingandstationary,forindoororoutdooruse.Themethodisapplicabletomachinesofallsizes,andtoalltypesofnoiseasdefinedinISO2204andISO12001.3TestenvironmentThemethodisapplicabletoanindoororoutdooren-vironmentwithoneormorereflectingplanespresent,meetingspecifiedrequirements.4SpecifiedpositionsThisInternationalStandardisapplicabletoworkstationsandotherspecifiedpositionswhereemissionsoundpressurelevelsaretobemeasured.Examplesofappropriatepositionswheremeasure-mentsmaybemadeincludethefollowing:a)workstationlocatedinthevicinityofthemachineundertest;thisisthecaseformanyindustrialmachinesanddomesticappliances;b)workstationwithinacabwhichisanintegralpartofthemachineundertest;thisisthecaseformanyindustrialtrucksandearth-movingma-chines;c)workstationwithinapartialortotalenclosure(orbehindascreen)suppliedbythemanufacturerasanintegralpartofthemachineryorequipment;d)workstationpartially
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20
【页数】:26P.;A4
【正文语种】:英语


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基本信息
标准名称:单机型和集中管理分散计费型电话计时计费器检定规程
英文名称:Verification Regulaiton of Single and Dispersion Controled Centrely Telephone Accounter
中标分类: 综合 >> 计量 >> 时间、频率计量
替代情况:JJG 107-1995
发布部门:中华人民共和国国家质量监督检验检疫总局
发布日期:2002-05-16
实施日期:2002-08-01
首发日期:
作废日期:
归口单位:全国时间频率计量技术委员会
起草单位:福州市计量所等
起草人:陈建功
出版社:中国计量出版社
出版日期:2004-04-18
页数:15页
书号:155026-1618
适用范围

本规程适用于单机型和集中管理分散计费型电话计时计费器的首次检定、后续检定和使用中检验。

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所属分类: 综合 计量 时间 频率计量
【英文标准名称】:Aerospace;temperingofacrylicplastics;directivesformanufacture
【原文标准名称】:航空航天.丙烯酸酯塑料的软化处理.制造规程
【标准号】:DIN29640-1986
【标准状态】:现行
【国别】:德国
【发布日期】:1986-11
【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】:航空航天;航天运输;加工工艺;航空航天运输;丙烯酸类树脂;热处理;玻璃;航空运输;塑料;回火;生产;丙烯酸玻璃
【英文主题词】:plastics;airtransport;aerospace;spacetransport;glass;productionprocesses;acrylicresins;heattreatment;aerospacetransport;acrylicglasses;tempering;production
【摘要】:Thisstandardspecifiesthedirectivesformanufactureoftemperingofacrylicplastics.
【中国标准分类号】:V13;G31
【国际标准分类号】:6860
【页数】:4P;A4
【正文语种】:德语