【英文标准名称】:ElectricallyHeatedBedding
【原文标准名称】:电热毯
【标准号】:ANSI/UL964-1997
【标准状态】:作废
【国别】:美国
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电热毯;热电对流供暖
【英文主题词】:electricspaceheating;electricblankets
【摘要】:
【中国标准分类号】:Y63
【国际标准分类号】:97_030
【页数】:
【正文语种】:英语


【英文标准名称】:Acoustics.Noiseemittedbymachineryandequipment.Determinationofemissionsoundpressurelevelsataworkstationandatotherspecifiedpositionsapplyingapproximateenvironmentalcorrections
【原文标准名称】:声学.机器和设备发射的噪声.应用近似环境修正法对工作站和其他指定位置发射声压级进行测定
【标准号】:ISO11202-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-05-15
【实施或试行日期】:2010-05-15
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC43
【标准类型】:()
【标准水平】:()
【中文主题词】:声学测量;声学试验;声学;空气噪声;定义;发射;排放测量;人类工效学;外部噪声;现场试验;就地;插入物;仪器;机械噪声;机器;测量;测量环境;测量不确定度;测量仪器;测量技术;方法;噪声;噪声辐射;噪声测量;使用条件;操作台;位置;精密度;辐射;声强;声级;声压;声压级;声音传播;规范(验收);工作地点
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoise;Definitions;Emission;Emissionmeasurement;Ergonomics;Externalnoise;Fieldtesting;Insitu;Inserts;Instruments;Machinenoise;Machines;Measurement;Measuringenvironment;Measuringincertainity;Measuringinstruments;Measuringtechniques;Methods;Noise;Noiseemissions;Noisemeasurements;Operatingconditions;Operatingstations;Position;Precision;Radiation;Soundintensity;Soundlevels;Soundpressure;Soundpressurelevel;Soundpropagation;Specification(approval);Workingplaces
【摘要】:ThisInternationalStandardspecifiesamethodfordeterminingtheemissionsoundpressurelevelsofmachineryorequipment,ataworkstationandatotherspecifiedpositionsnearby,insitu.Aworkstationisoccupiedbyanoperatorandmaybelocatedinopenspace,intheroomwherethesourceundertestoperates,inacabfixedtothesourceundertest,orinanenclosureremotefromthesourceundertest.Oneormorespecifiedpositionsmaybelocatedinthevicinityofaworkstation,orinthevicinityofanattendedorunattendedmachine.Suchpositionsaresometimesreferredtoasbystanderpositions.EmissionsoundpressurelevelsaredeterminedasA-weightedlevels.Additionally,levelsinfrequencybandsandC-weightedpeakemissionsoundpressurelevelscanbedeterminedinaccordancewiththisInternationalStandard,ifrequired.NOTE1ThecontentsoftheseriesISO11200toISO11205aresummarizedinISO11200Methodsaregivenfordeterminingalocalenvironmentalcorrection(subjecttoaspecifiedlimitingmaximumvalue)tobeappliedtothemeasuredsoundpressurelevelsinordertoeliminatetheinfluenceofreflectingsurfacesotherthantheplaneonwhichthesourceundertestisplaced.Thiscorrectionisbasedontheequivalentsoundabsorptionareaofthetestroomandonradiationcharacteristics(sourcelocationordirectivityattheworkstation).WiththemethodspecifiedinthisInternationalStandard,resultsofaccuracygrade2(engineeringgrade)oraccuracygrade3(surveygrade)areobtained.Correctionsareappliedforbackgroundnoiseand,asdescribedabove,fortheacousticenvironment.Instructionsaregivenforthemountingandoperationofthesourceundertestandforthechoiceofmicrophonepositionsfortheworkstationandforotherspecifiedpositions.Onepurposeofthemeasurementsistopermitcomparisonoftheperformanceofdifferentunitsofagivenfamilyofmachines,underdefinedenvironmentalconditionsandstandardizedmountingandoperatingconditions.NOTE2ThedataobtainedcanalsobeusedforthedeclarationandverificationofemissionsoundpressurelevelsasspecifiedinISO4871
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20
【页数】:48P.;A4
【正文语种】:英语