ASTM_E_1332_-_16.pdf

Designation:E133216Standard Classification forRating Outdoor-Indoor Sound Attenuation1This standard is issued under the fixed designation E1332;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 classification is part of a set of ratings for the sound isolating properties of materials,buildingelements,and structures.It is based on A-weighted reduction of a transportation noise source.Otherratings include Classification E413 that rates the ability of a partition to reduce speech and othersounds within a limited frequency range,and Classification E989 that provides a rating method forcomparing the impact-insulation properties of floor-ceiling assemblies.1.Scope1.1 The purpose of this classification is to provide a methodto calculate single-number ratings that can be used for assesingthe isolation for the outdoor sound provided by a building orcomparing building facade specimens including walls,doors,windows,and combinations thereof,including complete struc-tures.These ratings are designed to correlate with subjectiveimpressions of the ability of building elements to reduce thepenetration of outdoor ground and air transportation noise thatcontains strong low-frequency sound.2These ratings providean evaluation and rank ordering of the performance of testspecimens based on their effectiveness at controlling the soundof a specific outdoor sound spectrum called the referencesource spectrum.1.2 In addition to the calculation method,this classificationdefines some ratings not defined in other standards.Otherstandards may define additional ratings based on the method ofthis classification.1.3 The rating does not necessarily relate to the perceivedaesthetic quality of the transmitted sound.Different facadeelements with similar ratings may differ significantly in theproportion of low and high frequency sound that they transmitand the spectra of sources can vary significantly.It is best touse specific sound transmission loss values,in conjunctionwith actual spectra of outdoor and indoor sound levels,formaking final selections of facade elements.1.4 Excluded from the scope of this classification areapplications involving noise spectra differing markedly fromthat shown in Table 1.Thus excluded,for example,would becertain industrial noises with high levels at frequencies belowthe 80 Hz one-third octave band,relative to levels at higherfrequencies,and any source,including some transportationsources,that does not have a spectrum similar to that in Table1.However,for any source with a spectrum similar to that inTable 1,this classification provides a more reliable ranking ofthe performance of partitions and facade elements than doother classifications such as Classification E413.1.5 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:3C634 Terminology Relating to Building and EnvironmentalAcousticsE90 Test Method for Laboratory Measurement of AirborneSound Transmission Loss of Building Partitions andElementsE413 Classification for Rating Sound InsulationE966 Guide for Field Measurements of Airborne SoundAttenuation of Building Facades and Facade Elements1This classification is under the jurisdiction of ASTM Committee E33 onBuilding and Environmental Acoustics and is the direct responsibility of Subcom-mittee E33.03 on Sound Transmission.Current edition approved Nov.1,2016.Published December 2016.Originallyapproved in 1990.Last previous edition approved in 2010 as E1332 10a.DOI:10.1520/E1332-16.2This classification may be used in conjunction with Test Method E90 or GuideE966.3For 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 E989 Classification for Determination of Impact InsulationClass(IIC)2.2 ANSI Standard:ANSI S1.4 Part 1 American National Standard Electroa-coustics Sound Level Meters Part 1 Specifications42.3 ISO Standard:5ISO 532 AcousticsMethod for Calculating LoudnessLevel43.Terminology3.1 The following terms used in this classification havespecific meanings that are defined in Terminology C634:airborne sound,decibel,impact insulation class,octave band,outdoor-indoor transmission loss,sound insul