ASTM_E_1503_-_14.pdf

Designation:E150314Standard Test Method forConducting Outdoor Sound Measurements Using a DigitalStatistical Sound Analysis System1This standard is issued under the fixed designation E1503;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,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.INTRODUCTIONThis is one of a series of standards on the measurement and evaluation of community noise.Othersin the series include Guide E1014 which covers manual measurement,using a simple meter,andanalysis of the resulting data,and Guide E1780,which covers measurement of sound received froma nearby fixed source.1.Scope1.1 This test method covers the measurement of outdoorsound levels at specific locations using a digital statisticalsound analysis system and a formal measurement plan.1.1.1 This test method provides basic requirements forobtaining either a single set of data or multiple sets of relateddata.However,because there are numerous circumstances andvaried objectives requiring multiple sets of data,the testmethod does not address planning of the measurement pro-gram.1.2 The use of results of measurements performed using thistest method include,but are not limited to,the following:1.2.1 To characterize the acoustical environment of a site,1.2.2 To characterize the sound emissions of a specificsound source which exhibits a temporal variation in soundoutput,and1.2.3 To monitor the effectiveness of a noise impact miti-gation plan.1.3 This test method is intended to be used in conjunctionwith a measurement plan that references this test method.Changes or additions to the provisions of this test method shallbe clearly stated in the plan.1.3.1 In the event it is necessary,for example,because oftime constraints,to conduct measurements without first for-malizing a plan,this test method can be used if an operator/observer whose qualifications are satisfactory to both theperforming organization and the client is present at all timesduring the measurements and who complies,to the extentpossible,with all the applicable requirements of this testmethod,including record keeping.1.4 The data obtained using this test method enable com-parison of sound level data with appropriate criteria.1.4.1 The data obtained with this test method can be used inthe derivation of loudness levels provided the necessaryrequirements regarding sample duration and signal bandwidthare observed in collecting the data.It is recommended that aspecialist in the area of loudness evaluation be consulted inpreparing a plan for measurements intended to produce datawhich will be used for this purpose.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C634 Terminology Relating to Building and EnvironmentalAcousticsE1014 Guide for Measurement of Outdoor A-WeightedSound LevelsE1686 Guide for Applying Environmental Noise Measure-ment Methods and CriteriaE1780 Guide for Measuring Outdoor Sound Received froma Nearby Fixed Source1This test method is under the jurisdiction ofASTM Committee E33 on Buildingand Environmental Acoustics and is the direct responsibility of SubcommitteeE33.09 on Community Noise.Current edition approved March 1,2014.Published May 2014.Originallyapproved in 1992.Last previous edition approved in 2012 as E150312.DOI:10.1520/E1503-14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2.2 ANSI Standards:3S1.11 Specifications for Octave-band and Fractional Octave-band Analog and Digital Filters3S1.13 Measurement of Sound Pressure Levels in AirS1.17 Microphone Windscreens-Part 1:Measurements andSpecification of Insertion Loss in Still or Slightly MovingAirS1.40 Specification for Verification Procedures for SoundCalibrators3S1.43 Specifications of Integrating-Averaging Sound LevelMetersS12.9 Standard Quantities and Procedures for Descriptionand Measurement of Environmental Sound,Part 2:Mea-surement of Long-Term,Wide-Area Sound and Part 3:Short-term Measurements with an Observer Present2.3 IEC Standards616721 Electroacoustics-Sound Level Meters-Part 1:Specifications3.Terminology3.1 For definitions of terms,including the following used inthis test method,see Terminology C634:dummy microphone,