HB 4-136-1983 装有内锥管嘴的１组钢丝编织软管
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来源:标准资料网
基本信息
| 标准名称： | 装有内锥管嘴的１组钢丝编织软管 |
| 中标分类： |
航空、航天 >>
航空器与航天器零部件 >>
管件、卡箍、密封件 |
| 替代情况： | HB 4-136-79 |
| 发布日期： | 1984-08-23 |
| 实施日期： | 1984-10-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 1页 |
适用范围
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前言
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所属分类： 航空 航天 航空器与航天器零部件 管件 卡箍 密封件
【英文标准名称】:Acoustics.Noiseemittedbymachineryandequipment.Determinationofemissionsoundpressurelevelsataworkstationandatotherspecifiedpositionsapplyingapproximateenvironmentalcorrections
【原文标准名称】:声学.机械装置及设备发出的噪声.应用近似环境更正法进行工作地点和其它试验场所声压级的测量
【标准号】:BSENISO11202-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2010-08-31
【实施或试行日期】:2010-08-31
【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】:声学测量;声学试验;声学;空气噪声;定义(术语);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;机械;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;噪声测量值;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.NOTE1ThecontentsoftheseriesISO11200toISO11205aresummarizedinISO11200.Methodsaregivenfordeterminingalocalenvironmentalcorrection(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】:52P.;A4
【正文语种】:英语
