1、Designation: E336 16E336 16aStandard Test Method forMeasurement of Airborne Sound Attenuation betweenRooms in Buildings1This standard is issued under the fixed designation E336; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the y
2、ear 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.This standard has been approved for use by agencies of the U.S. Department of Defense.INTRODUCTIONThis test method is part
3、of a set of standards for evaluating the sound-insulating properties ofbuilding elements. It is designed to measure the sound isolation between two rooms or to estimatelower limits for sound transmission through a partition element installed as an interior part of abuilding. Others in the set cover
4、the airborne sound transmission loss of an isolated partition elementin a controlled laboratory environment (Test Method E90), the laboratory measurement of impactsound transmission through floors (Test Method E492), the measurement of impact sound transmis-sion in buildings (Test Method E1007), the
5、 measurement of sound transmission through buildingfacades and facade elements (Guide E966), the measurement of sound transmission through acommon plenum between two rooms (Test Method E1414/E1414M), and measurement of thenormalized insertion loss of doors (Test Method E2964).1. Scope1.1 The sound i
6、solation between two spaces in a building is determined influenced most strongly by a combination of the directtransmission through the nominally separating building element (as normally measured in a laboratory) and any transmission alonga number of indirect paths, usually referred to as flanking p
7、aths. Fig. 1 illustrates the direct paths and some possible structuralflanking paths. Additional non-structural flanking paths may include transmission through common air ducts between rooms, ordoors to the corridor from adjacent rooms. Sound isolation is also influenced by the size of the separatin
8、g partition between spacesand absorption in the receiving space, and in the case of small spaces by modal behavior of the space and close proximity tosurfaces.1.2 The main part of this test method defines procedures and metrics to assess the sound isolation between two rooms or portionsthereof in a
9、building separated by a common partition including both direct and flanking transmission paths or the apparent soundinsulation of the separating partition. partition, including both direct and flanking transmission paths in all cases. Appropriatemeasures and their single number ratings are the noise
10、 reduction (NR) and noise isolation class (NIC), the (NIC) which indicatethe isolation with the receiving room furnished as it is during the test, the normalized noise reduction (NNR) and normalized noiseisolation class (NNIC), (NNIC) which indicate the expected isolation when the receiving room is
11、a normally furnished living oroffice space that is at least 25 m3 (especially useful when the test must be done with the receiving room unfurnished), and theapparent transmission loss (ATL) and apparent sound transmission class (ASTC). (ASTC) which indicate the apparent soundinsulating properties of
12、 a separating partition. The measurement of ATL is limited to spaces of at least 25 m3 where modal effectscreate fewer problems. With the exception of the ATL and ASTC under specified conditions, these procedures in the main part ofthe test method are only applicable when both room volumes are less
13、than 150 m3.NOTE 1The word “partition” in this test method includes all types of walls, floors, or any other boundaries separating two spaces. The boundariesmay be permanent, operable, or movable.1.3 The NR and NIC between two locations may always be measured and reported though conditions present w
14、ill influence howmeasurements are made. Restrictions such as minimum room volume or dimensions or maximum room absorption are imposedfor all other measures and ratings in this standard. Thus, conditions may exist that will not allow NNR (NNIC), ATL (ASTC) or1 This test method is under the jurisdicti
15、on of ASTM Committee E33 on Building and Environmental Acoustics and is the direct responsibility of Subcommittee E33.03on Sound Transmission.Current edition approved Jan. 1, 2016Oct. 1, 2016. Published January 2016December 2016. Originally approved in 1971. Last previous edition approved in 2015201
16、6 asE336 15.E336 16. DOI: 10.1520/E0336-16.10.1520/E0336-16A.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all cha
17、nges accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. U
18、nited States1FTL (FSTC) to be measured.reported. Where a partition between rooms is composed of parts that are constructed differently, orcontains an element such as a door, it is not possible to measure the ATL and ASTC of the individual elements or portions of thepartition. To evaluate the field p
19、erformance of a door less than 6 m2 in area, use Test Method E2964. The various metrics areinherently different quantities, so that NIC cannot be used instead of NNIC or ASTC when specifications are written in terms ofone of those metrics that cannot be reported with the conditions present.1.4 Annex
20、 A1 provides methods to assess the sound transmission through a partition or partition element with the influence offlanking transmission reduced. These methods may be used when it must be demonstrated that a partition has achieved a specifiedminimum sound attenuation. The results are the field tran
21、smission loss (FTL) and field sound transmission class (FSTC).1.5 Annex A2 provides methods to measure the sound isolation between portions of two rooms in a building separated by acommon partition including both direct and flanking paths when at least one of the rooms has a volume of 150 m3 or more
22、. Theresults are the noise reduction (NR) and noise isolation class (NIC).1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.7 The text of this test method references notes and footnotes which provide explanatory material.
23、These notes and footnotes(excluding those in tables and figures) shall not be considered as requirements of the standard.1.8 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address allof the safety concerns, if any, associated with its use.
24、 It is the responsibility of the user of this standard to establish appropriatesafety and health practices and determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C634 Terminology Relating to Building and Environmental AcousticsE90 Test Metho
25、d for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and ElementsE413 Classification for Rating Sound InsulationE492 Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using theTapping MachineE966 Guide for Field Me
26、asurements of Airborne Sound Attenuation of Building Facades and Facade ElementsE1007 Test Method for Field Measurement of Tapping Machine Impact Sound Transmission Through Floor-CeilingAssembliesand Associated Support StructuresE1414/E1414M Test Method for Airborne Sound Attenuation Between Rooms S
27、haring a Common Ceiling PlenumE2235 Test Method for Determination of Decay Rates for Use in Sound Insulation Test MethodsE2964 Test Method for Measurement of the Normalized Insertion Loss of Doors2.2 ANSI Standards:3S1.10 Pressure Calibration of Laboratory Standard Pressure MicrophonesS1.11 Specific
28、ation for Octave-Band and Fractional-Octave-Band Analog and Digital Filters2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the
29、 ASTM website.3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.FIG. 1 Direct (D) and Some Indirect or Flanking Paths (F and Dotted) in a BuildingE336 16a2S1.40 Specification and Verification Procedures for Sound Calibrat
30、orsS1.43 Specifications for Integrating-Averaging Sound Level Meters2.3 IEC Standard:4IEC 60942 ElectroacousticsSound CalibratorsIEC 61672 ElectroacousticsSound Level Meters2.4 ISO Standard:5ISO 16283-1:2014 Acoustics - Field measurement of sound insulation in buildings and of building elements - Pa
31、rt 1:Airbornesound insulation3. Terminology3.1 The following terms used in this test method have specific meanings that are defined in Terminology C634:3.1.1 airborne sound; background noise; decay rate; decibel; diffuse sound field; field sound transmission class, FSTC; fieldtransmission loss, FTL;
32、 flanking transmission; pink noise; receiving room; self-noise; sound absorption; sound attenuation; soundinsulation; sound isolation; sound pressure level; sound transmission loss, TL; source roomNOTE 2The unqualified term average sound pressure level in this document means that sound pressure leve
33、ls were averaged over the measurementregion for specified periods of time.3.2 Definitions of Terms Specific to This Standard:3.2.1 apparent transmission loss, ATL (dB), nof a partition installed in a building, in a specified frequency band isoperationally defined as:ATL5LH12LH2110logS SA2D (1)where:
34、S = the area of the partition common to both source and receiving rooms, m2A2 = the sound absorption in the receiving room, m2L1 = the source room average sound pressure level, dB andL2 = the receiving room average sound pressure level resulting from the combined effect of direct and flanking transm
35、ission,dB.3.2.1.1 DiscussionThroughout this test method, log is taken to mean log10, unless otherwise indicated.3.2.1.2 DiscussionThis definition attributes all the power transmitted into the receiving room, by direct and flanking paths, to the area of the partition4 Available from International Ele
36、ctrotechnical Commission (IEC), 3 rue de Varemb, Case postale 131, CH-1211, Geneva 20, Switzerland, http:/www.iec.ch.5 Available from International Organization for Standardization (ISO), 1, ch. de la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http:/www.iso.org.FIG. 2 Coupled Spaces Adjacen
37、t to a Primary SpaceE336 16a3common to both rooms. If flanking transmission is significant, the ATL will be less than the TL for the partition. Apparenttransmission loss (ATL) is equivalent in meaning to apparent sound reduction index (ASRI) used by ISO 16283-1:2014.3.2.2 apparent sound transmission
38、 class, ASTC, na single number rating obtained by applying the classification procedure ofClassification E413 to apparent transmission loss data.3.2.3 coupled space, na secondary space that is adjacent to and partially open to the primary space on the same side of theseparating partition and which m
39、eets spatial and sound level distribution requirements sufficient to allow the secondary space tobe included as part of the measurement space with the primary space.3.2.3.1 DiscussionFig. 2 and Fig. 3 illustrate conditions that may be coupled spaces.3.2.3.2 DiscussionTo qualify as a coupled space in
40、 this standard the space must meet requirements specified in 9.4.1.3.2.4 direct transmission, nsound that travels between a source and a receiving room only through the common (separating)building element.3.2.5 noise reduction, NR, (dB), nin a specified frequency band, the difference between the sou
41、nd pressure levels at twowell-defined locations.3.2.6 noise isolation class, NIC, na single-number rating calculated in accordance with Classification E413 using measuredvalues of noise reduction.3.2.7 normalized noise reduction, NNR, (dB), nbetween two rooms of less than 1503 cubic meters, where th
42、e receiving roomis at least 25 m3, in a specified frequency band, the value that the noise reduction, NR, in a given field test would have if thereverberation time in the receiving room were 0.5 s. NNR is calculated as follows:NNR5NR110logS T0.5D (2)where:NR = noise reduction, dB, andT = reverberati
43、on time in receiving room, s.3.2.7.1 DiscussionThe normalized noise reduction is intended to approximate the noise reduction that would exist between twoin an ordinarilyfurnished rooms.receiving room.3.2.8 normalized noise isolation class, NNIC (dB), na single-number rating for noise isolation betwe
44、en two rooms both lessthan 150 cubic meters calculated in accordance with Classification E413 using measured values of normalized noise reduction.(See normalized noise reduction.)FIG. 3 Receiving Spaces Adjacent to a Coupled Source SpaceE336 16a44. Summary of Test Method4.1 The source and receiving
45、rooms are selected, the measurement spaces and volumes in each room are defined and the metricsto be measured are identified based on information given in Section 5 within the restrictions given in 11.3 and Annex A2.4.2 The number and location of sound sources are chosen, sound is produced in the so
46、urce room and sound pressure levels aresampled spatially in the measurement spaces in both the source and receiving rooms.4.3 Sound decay rates are measured as necessary depending on the result to be reported.4.4 If a value for noise reduction is to be measured between rooms immediately adjacent to
47、a common partition where eitheris 150 m3 in volume or greater, the requirements and procedures of Annex A2 must be satisfied.4.5 If values of NNR are to be reported, the requirements of 9.3 must be satisfied. If values of ATL are to be reported, therequirements of 9.4.1 must be satisfied and ifATL i
48、s to be reported for a partition between spaces where either is 150 cubic metersin volume or greater, the requirement of 9.4.1.2 must be satisfied.4.6 If a value for the field transmission loss (FTL) is to be measured, the requirements and procedures of Annex A1 must besatisfied.4.7 Results and sing
49、le number ratings are calculated and reported.5. Significance and Use5.1 The main part of this standard uses procedures originally developed for laboratory measurements of the transmission lossof partitions. These procedures assume that the rooms in which the measurements are made have a sound field that reasonablyapproximates a diffuse field. Sound pressure levels in such rooms are reasonably uniform throughout the room and average levelsvary inversely with the logarithm of the room sound absorption. Not all rooms will satisfy these conditions. Prac
