MIL-STD-1622B (W/ CHANGE 1)
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MIL-STD-1622B (W/ CHANGE 1), DEPARTMENT OF DEFENSE STANDARD PRACTICE: CLEANING OF SHIPBOARD COMPRESSED AIR SYSTEMS (15 NOV 2006)., This standard provides the requirements for cleaning ofcompressed air systems and components. Each activity should implement theapplicable requirements of this document through a locally prepared andapproved procedure. Activities subject to additional quality assurance requirements such as NAVSEA SS800-AG-MAN-010/P-9290 or NAVSEA SS521-AA-MAN-010 will obtain procedure approval from the applicable certifying activity. Thisstandard does not apply to reactor plant air systems.
【英文标准名称】:Acoustics-Noiseemittedbymachineryandequipment-Measurementofemissionsoundpressurelevelsataworkstationandatotherspecifiedpositions-Engineeringmethodinanessentiallyfreefieldoverareflectingplane
【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.反射平面上基本自由声波场的技术测试法
【标准号】:BSENISO11201-1996
【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】:声强;声学;等级(质量);噪声(环境的);操作工位;传声器;声学测量;准确度;再现性;测量特征;试验设备;试验条件;实验室试验
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoise;Definitions;Emission;Emissionmeasurement;Environment;Ergonomics;Externalnoise;Fixings;Handling;Head(anatomy);Information;Installations;Instruments;Machinenoise;Machines;Measurement;Measurementconditions;Measurementduration;Measuringbanks;Measuringenvironment;Measuringincertainity;Measuringinstruments;Measuringtechniques;Microphones;Noise;Noiseemissions;Noisemeasurements;Operatingstations;Operation;Operators;Persons;Position;Precision;Radiation;Reflective;Seats;Sitting;Soundfields;Soundintensity;Soundlevels;Soundpressure;Soundpressurelevel;Soundpropagation;Specification(approval);Status;Workingplaces
【摘要】:1GeneralThisInternationalStandardspecifiesamethodformeasuringtheemissionsoundpressurelevelsofmachineryandequipment,ataworkstationandatotherspecifiedpositionsnearby,inanessentiallyfreefieldoverareflectingplane.Aworkstationisoccu-piedbyanoperator.Itmaybelocatedinopenspaceintheroomwherethesourceoperates,orinacabfixedtothesource,orinanenclosureremotefromthesource.Oneormorespecifiedpositionsmaybelocatedinthevicinityofaworkstation,orinthevi-cinityofanunattendedmachine.Assomeofthesepositionsmaybeoccupiedoccasionallyorregularly,theyaresometimesreferredtoasbystanderpos-itions.EmissionsoundpressurelevelsaremeasuredasA-weightedand,ifrequired,C-weightedpeak,andinfrequencybands.NOTE1ThecontentsofthisandrelatedInternationalStandardsaresummarizedintable1ofISO11200:1995.ThisInternationalStandardspecifiesrequirementsfortheengineeringgradeofaccuracyonthetesten-vironmentandinstrumentation.Correctionsareap-pliedforbackgroundnoise,butnotfortheacousticenvironment.Instructionsaregivenfortheinstallationandoperationofthemachineundertestandforthechoiceofmicrophonepositionsfortheworkstationandforotherspecifiedpositions.Thepurposeofthemeasurementsistopermitcomparisonoftheper-formanceofdifferentunitsofagivenfamilyofma-chineryorequipment,underdefinedenvironmentalconditionsandstandardizedmountingandoperatingconditions.ThedataobtainedmayalsobeusedforthedeclarationandverificationofemissionsoundpressurelevelsasspecifiedinISO4871.NOTE2Atanygivenpositioninrelationtoaparticularmachine,andforgivenmountingandoperatingconditions,theemissionsoundpressurelevelsdeterminedbythemethodofthisInternationalStandardwillingeneralbelowerthanthedirectlymeasuredsoundpressurelevelsforthesamemachineinthetypicalworkroomwhereitisused.Thisisduetoreverberationandthecontributionsofothermachines.Amethodofcalculatingthesoundpressurelev-elsinthevicinityofamachineoperatingaloneinaworkroomisgiveninISO11690-3.Commonlyobserveddifferencesare1dBto5dB,butinextremecasesthedif-ferencemaybeevengreater.2TypesofnoiseandnoisesourcesThemethodspecifiedinthisInternationalStandardisapplicabletoalltypesofmachinery,bothmovingandstationary,forindoororoutdooruse.Themethodisapplicabletomachinesofallsizes,andtoalltypesofnoiseasdefinedinISO2204andISO12001.3TestenvironmentThetypeoftestenvironmentinfluencestheaccuracyofthedeterminationofemissionsoundpressurelev-els.Anessentiallyfreefieldoverareflectingplane(indoorsoroutdoors)isrequired.4SpecifiedpositionsThisInternationalStandardisapplicabletoworkstationsandotherspecifiedpositionswhereemissionsoundpressurelevelsaretobemeasured.Examplesofappropriatepositionswheremeasure-mentsmaybemadeincludethefollowing:a)workstationlocatedinthevicinityofthemachineundertest;thisisthecaseformanyindustrialmachinesanddomesticappliances;b)workstationwithinacabwhichisanintegralpartofthemachineundertest;thisisthecaseformanyindustrialtrucksandearth-movingma-chines;c)workstationwithinapartialortotalenclosure(orbehindascreen)suppliedbythemanufacturerasanintegralpartofthemachineryorequipment;d)workstationpartiallyortotallyenclosedbythemachineundertest;thissituationmaybeen-counteredwithsomelargeindustrialmachines;e)bystanderpositionsoccupiedbyindividualsnotresponsiblefortheoperationofthemachineundertest,butwhomaybeinitsimmediatevi-cinity,eitheroccasionallyorcontinuously;f)otherspecifiedpositions,notnecessarilyworkstationsorbystanderpositions
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20
【页数】:24P.;A4
【正文语种】:英语
【英文标准名称】:Safetyofhouseholdandsimilarelectricalappliances;part2:particularrequirementsforcookingranges,cookingtables,ovensandsimilarappliancesforhouseholduse(amendment2:1990toIEC60335-2-6:1986,modified);GermanversionEN60335-2-6/A2:19
【原文标准名称】:家用和类似用途电器的安全.第2部分:家用电灶,灶台,烤炉和类似器具的特殊要求
【标准号】:DINEN60335T.2-6/A2-1993
【标准状态】:作废
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【发布单位】:德国标准化学会(DE-DIN)
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【标准类型】:()
【标准水平】:()
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