AHRI 1120-2007 Acoustical Test Methods and Sound Power Rating Procedures for Transport Refrigeration Equipment

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1、AHRIStandard1120(formerlyARIStandard1120)2007StandardforAcousticalTestMethodsandSoundPowerRatingProceduresforTransportRefrigerationEquipmentIMPORTANTSAFETYRECOMMENDATIONSItisstronglyrecommendedthattheproductbedesigned,constructed,assembledandinstalledinaccordancewithnationallyrecognize

2、dsafetyrequirementsappropriateforproductscoveredbythisstandard.ARI,asamanufacturers'tradeassociation,usesitsbesteffortstodevelopstandardsemployingstate-of-the-artandacceptedindustrypractices.However,ARIdoesnotcertifyorguaranteesafetyofanyproducts,componentsorsystemsdesigned,tested,rate

3、d,installedoroperatedinaccordancewiththesestandardsorthatanytestsconductedunderitsstandardswillbenon-hazardousorfreefromrisk.Note:Thisisanewstandard.Price$10.00(M)$20.00(NM)©Copyright2007,byAir-ConditioningHeatingandRefrigerationInstitutePrintedinU.S.A.RegisteredUnitedStatesPatentandTr

4、ademarkOfficeTABLEOFCONTENTSSECTIONPAGESection1.Purpose...............................................................................................................1Section2.Scope.........................................................................................................

5、.........1Section3..Definitions..........................................................................................................1Section4.RequirementsforConductingSoundTests........................................................3Section5.SoundRatingProcedures.................

6、...................................................................5Section6.MinimumDataRequirementsforPublishedRatings.........................................7Section7.ConformanceConditions....................................................................................7TABLESTabl

7、e1.StandardFrequencyBands.................................................................................2Table2.SoundPowerRatings–MethodsandInformation.............................................4Table3.A-WeightedConversions.........................................................