1、Designation:F133414An American National StandardStandard Test Method forDetermining A-Weighted Sound Power Level of VacuumCleaners1This standard is issued under the fixed designation F1334;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revis
2、ion,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method calculates the overall A-weightedsound power level emitted by small portable upright,canis
3、ter,combination vacuum cleaners,backpack vacuum cleaners,hard-floor machines,and central vacuum cleaner motorizednozzles intended for operation in domestic and commercialapplications.1.1.1 To determine the Sound Power Level of a centralvacuum at the power unit location refer to Test Method F2544.1.2
4、 A-weighted sound pressure measurements are per-formed on a stationary vacuum cleaner in a semi-reverberantroom.This test method determines sound power by a compari-son method for small noise sources,that is,comparison to abroadband reference sound source.1.3 This test method describes a procedure f
5、or determiningthe approximate A-weighted sound power level of small noisesources.This test method uses a non-special semi-reverberantroom.1.4 Results are expressed as A-weighted sound power levelin decibels(referenced to one picowatt).1.5 The values stated in inch-pound units are to be regardedas th
6、e standard.The values in parentheses are for informationonly.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bil
7、ity of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C634 Terminology Relating to Building and EnvironmentalAcousticsE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precisio
8、n of a Test MethodF608 Test Method for Evaluation of Carpet Embedded DirtRemovalEffectivenessofHousehold/CommercialVacuum CleanersF655 Specification for Test Carpets and Pads for VacuumCleaner TestingF2544 Test Method for Determining A-Weighted SoundPower Level of Central Vacuum Power UnitsF2607 Tes
9、t Method for Measuring the Hard Surface Floor-Cleaning Ability of Household/Commercial VacuumCleaners2.2 ANSI Standards:3ANSI S1.10 Method for the Calibration of MicrophonesANSI S1.43 Specifications for Integrating-Averaging SoundLevel MetersANSI S12.51/ISO 3741 Acoustics-Determination of soundpower
10、 levels of noise sources using sound pressure-Precision methods for reverberation roomsANSI S12.53/ISO 3743 Acoustics-Determination of soundpower levels of noise sources-Engineering methods forsmall,movable sources in reverberant fieldsANSI S12.57/ISO 3747 Standard Acoustics-Determinationof sound po
11、wer levels of noise sources using soundpressure-Comparison method in situ3.Terminology3.1 Definitions:3.1.1 population,nthe total of all of the units of theparticular model or type,or both,of vacuum cleaner beingtested.3.1.2 population sample or sample,nthree or more testunits,randomly taken from th
12、e population.3.1.3 reference sound source,na standard source ofbroadband sound with a certified set of sound power emissions.1This test method is under the jurisdiction ofASTM Committee F11 on VacuumCleaners and is the direct responsibility of Subcommittee F11.25 on SoundMeasurement.Current edition
13、approved Aug.1,2014.Published August 2014.Originallyapproved in 1991.Last previous edition approved in 2012 as F1334 12.DOI:10.1520/F1334-14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume i
14、nformation,refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute,11 W.42nd St.,13thFloor,New York,NY 10036.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.4 source,na dev
15、ice that emits sound.This may be thevacuum cleaner or a motorized nozzle.3.1.5 test unit or unit,na single vacuum cleaner,nozzle,or hard-floor machine of the model or type,or both,beingtested.3.1.6 Unless otherwise indicated,definitions are in accor-dance with Terminology C634.4.Significance and Use
16、4.1 The test results enable the comparison of A-weightedsound emission from vacuum cleaners or hard-floor machineswhen tested under the condition of this test method.5.Test Room Requirements5.1 The test room shall be semi-reverberant.It shall containsufficiently little sound absorption material so the requirementsof 5.2 can be met.It should be large enough to meet thedimension requirements of 5.2.5.1.1 When a central vacuum cleaner motorized nozzle is tobe tested,the test room should be plumbed
