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ASTM E1414/E1414M-16

(Test Method)

Standard Test Method for Airborne Sound Attenuation Between Rooms Sharing a Common Ceiling Plenum

Standard Test Method for Airborne Sound Attenuation Between Rooms Sharing a Common Ceiling Plenum

SIGNIFICANCE AND USE
5.1 Modern offices and other multipurpose buildings commonly have suspended acoustical ceilings installed over room dividing partitions. The test facility prescribed in this test method is useful for providing ceiling attenuation data on the relevant ceiling/partition elements and systems, to ensure that the transmission of sound through the ceiling and plenum space, or through the combination of ceiling, plenum space, and partition systems, provides a suitable degree of acoustical isolation.  
5.2 This test method is useful for rating and specifying, under standardized conditions, the sound attenuation performance of ceiling materials when mounted in a specified suspension system.  
5.3 This test method may be useful for selecting a wall-ceiling system for probable compliance with a performance specification for overall sound isolation between rooms. However, the actual field performance may differ significantly, particularly if the field plenum depth is not within the limits specified in this test method or if the plenum space contains large ducts, beams, etc., or both. (See Test Method E336.)  
5.4 The flexibility inherent in the test facility enables evaluation of the effects of penetrations, induced leakage paths, luminaire, and air diffuser installations and discontinuities in the ceiling suspension system at the partition line, including penetration of the partition into the ceiling plenum. The effect of installing plenum barriers at the partition line may also be investigated.  
5.5 With the concentration of sound absorbent area offered by a suspended sound absorbent ceiling installed in a room, it is not possible to obtain a good approximation to a diffuse sound field in that room. The plenum dimensions prevent the maintenance of a diffuse sound field above the test specimen. These factors affect the values of the measured ceiling sound attenuation and thus the measurements are not a fundamental property of the ceiling. The test method measures the acou...
SCOPE
1.1 This test method utilizes a laboratory space so arranged that it simulates a pair of horizontally adjacent small offices or rooms separated by a partition and sharing a common plenum space. The partition either extends to the underside of a common plenum space or penetrates through it. In the prescribed configuration, special design features of the facility ensure that the only significant sound transmission path is by way of the ceiling and the plenum space.  
1.2 Within the limitations outlined in the significance statement, the primary quantity measured by this test method is the ceiling attenuation of a suspended ceiling installed in a laboratory environment. By accounting for receiving room sound absorption, the normalized ceiling attenuation may be determined.  
1.3 The test method may also be used to evaluate the attenuation of composite ceiling systems comprised of the ceiling material and other components such as luminaires and ventilating systems.  
1.4 The field performance of a ceiling system may differ significantly from the results obtained by this test method (see Section 5, Significance and Use, and Test Method E336).  
1.5 The procedures may also be used to study the additional sound insulation that may be achieved by other attenuation measures. This would include materials used either as plenum barriers or as backing for all or part of the ceiling.  
1.6 The facility may also be used to study the performance of an integrated system comprising plenum, ceiling, and partition, tested as a single assembly.  
1.7 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.8 This standard does not purport to address all of the safety concerns, ...

General Information

Status
Historical
Publication Date
30-Sep-2016
ICS
91.120.20 - Acoustics in building. Sound insulation
Technical Committee
E33 - Building and Environmental Acoustics
Drafting Committee
E33.03 - Sound Transmission
Current Stage
Ref Project

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ASTM E1414/E1414M-16 - Standard Test Method for Airborne Sound Attenuation Between Rooms Sharing a Common Ceiling PlenumASTM E1414/E1414M-16 - Standard Test Method for Airborne Sound Attenuation Between Rooms Sharing a Common Ceiling Plenum
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E1414/E1414M − 16
Standard Test Method for
Airborne Sound Attenuation Between Rooms Sharing a
1
Common Ceiling Plenum
ThisstandardisissuedunderthefixeddesignationE1414/E1414M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This test method is designed to measure the sound attenuation provided by a suspended ceiling in
the presence of a continuous plenum space under prescribed laboratory test conditions. The test
methodisanadaptationofAMA1-II-1967MethodofTest.Thismodifiedtestmethodmaygiveresults
differing from the AMA-1-II procedure.
1. Scope 1.6 The facility may also be used to study the performance
of an integrated system comprising plenum, ceiling, and
1.1 This test method utilizes a laboratory space so arranged
partition, tested as a single assembly.
that it simulates a pair of horizontally adjacent small offices or
1.7 The values stated in either SI units or inch-pound units
rooms separated by a partition and sharing a common plenum
are to be regarded separately as standard. The values stated in
space. The partition either extends to the underside of a
each system may not be exact equivalents; therefore, each
common plenum space or penetrates through it. In the pre-
system shall be used independently of the other. Combining
scribed configuration, special design features of the facility
values from the two systems may result in non-conformance
ensure that the only significant sound transmission path is by
with the standard.
way of the ceiling and the plenum space.
1.8 This standard does not purport to address all of the
1.2 Within the limitations outlined in the significance
safety concerns, if any, associated with its use. It is the
statement,theprimaryquantitymeasuredbythistestmethodis
responsibility of the user of this standard to establish appro-
the ceiling attenuation of a suspended ceiling installed in a
priate safety and health practices and determine the applica-
laboratory environment. By accounting for receiving room
bility of regulatory limitations prior to use.
sound absorption, the normalized ceiling attenuation may be
determined.
2. Referenced Documents
2
1.3 The test method may also be used to evaluate the
2.1 ASTM Standards:
attenuation of composite ceiling systems comprised of the
C423 Test Method for SoundAbsorption and SoundAbsorp-
ceiling material and other components such as luminaires and
tion Coefficients by the Reverberation Room Method
ventilating systems.
C634 Terminology Relating to Building and Environmental
Acoustics
1.4 The field performance of a ceiling system may differ
C636 Practice for Installation of Metal Ceiling Suspension
significantly from the results obtained by this test method (see
Systems for Acoustical Tile and Lay-In Panels
Section 5, Significance and Use, and Test Method E336).
E90 Test Method for Laboratory Measurement of Airborne
1.5 The procedures may also be used to study the additional
Sound Transmission Loss of Building Partitions and
sound insulation that may be achieved by other attenuation
Elements
measures. This would include materials used either as plenum
E177 Practice for Use of the Terms Precision and Bias in
barriers or as backing for all or part of the ceiling.
ASTM Test Methods
E336 Test Method for Measurement of Airborne Sound
Attenuation between Rooms in Buildings
1
ThistestmethodisunderthejurisdictionofASTMCommitteeE33onBuilding
and Environmental Acoustics and is the direct responsibility of Subcommittee
2
E33.03 on Sound Transmission. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2016. Published October 2016. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1991. Last previous edition approved in 2011 as E1414/ Standards volume information, refer to the standard’s Document Summary page on
ε1
E1414M – 11a . DOI: 10.1520/E1414_E1414M-16. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E1414/E1414M − 16
E413 Classification for Rating Sound Insulation upon whether the specific test specimen is designed to be
E691 Practice for Conducting an Interlaboratory Study to continuous or interrupted at the partition line. The rooms are
Determine the Precision of a Test Method built so that the only significant sound transmission path
between them is that provided by the test specimen and the
2.2 ANSI Standards:
ceiling plenum. All other sound transmission paths must be
S1.11 Specificati
...

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. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: E1414/E1414M − 11a E1414/E1414M − 16
Standard Test Method for
Airborne Sound Attenuation Between Rooms Sharing a
1
Common Ceiling Plenum
This standard is issued under the fixed designation E1414/E1414M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
ε NOTE—Research report number RR: E33–1033 was editorially corrected to RR: E33–1013 in October 2014.
INTRODUCTION
This test method is designed to measure the sound attenuation provided by a suspended ceiling in
the presence of a continuous plenum space under prescribed laboratory test conditions. The test
method is an adaptation of AMA 1-II-1967 Method of Test. This modified test method may give results
differing from the AMA-1-II procedure.
1. Scope
1.1 This test method utilizes a laboratory space so arranged that it simulates a pair of horizontally adjacent small offices or
rooms separated by a partition and sharing a common plenum space. The partition either extends to the underside of a common
plenum space or penetrates through it. In the prescribed configuration, special design features of the facility ensure that the only
significant sound transmission path is by way of the ceiling and the plenum space.
1.2 Within the limitations outlined in the significance statement, the primary quantity measured by this test method is the ceiling
attenuation of a suspended ceiling installed in a laboratory environment. By accounting for receiving room sound absorption, the
normalized ceiling attenuation may be determined.
1.3 The test method may also be used to evaluate the attenuation of composite ceiling systems comprised of the ceiling material
and other components such as luminaires and ventilating systems.
1.4 The field performance of a ceiling system may differ significantly from the results obtained by this test method (see Section
5, Significance and Use, and Test Method E336).
1.5 The procedures may also be used to study the additional sound insulation that may be achieved by other attenuation
measures. This would include materials used either as plenum barriers or as backing for all or part of the ceiling.
1.6 The facility may also be used to study the performance of an integrated system comprising plenum, ceiling, and partition,
tested as a single assembly.
1.7 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
C423 Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
1
This test method is under the jurisdiction of ASTM Committee E33 on Building and Environmental Acoustics and is the direct responsibility of Subcommittee E33.03
on Sound Transmission.
Current edition approved Nov. 1, 2011Oct. 1, 2016. Published December 2011October 2016. Originally approved in 1991. Last previous edition approved in 2011 as
ε1
E1414 – 11.E1414/E1414M – 11a . DOI: 10.1520/E1414_E1414M–11AE01.10.1520/E1414_E1414M-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E1414/E1414M − 16
C634 Terminology Relating to Building and Environmental Acoustics
C636 Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels
E90 Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E336 Test Method for Measurement of Airborne Sound
...

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ASTM C423-23(Test Method)
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SIGNIFICANCE AND USE
5.1 Measurement of the sound absorption of a room is part of the procedure for other acoustical measurements, such as determining the sound power level of a noise source or the sound transmission loss of a partition. It is also used in certain calculations such as predicting the sound pressure level in a room when the sound power level of a noise source in the room is known.  
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5.4 The coefficients measured by this test method should be used with caution because not only are the areas encountered in practical usage usually larger than the test specimen, but also the sound field is rarely diffuse. In the laboratory, measurements must be made under reproducible conditions, but in practical usage the conditions that determine the effective absorption are often unpredictable. Regardless of the differences and the necessity for judgment, coefficients measured by this test method have been used successfully by architects and consultants in the acoustical design of architectural spaces.  
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1.1 This test method covers the measurement of sound absorption in a reverberation room by measuring decay rate. Procedures for measuring the absorption of a room, the absorption of an object, such as an office screen, and the sound absorption coefficients of a specimen of sound absorptive material, such as acoustical ceiling tile, are described.  
1.2 Field Measurements—Although this test method covers laboratory measurements, the test method described in 4.1 can be used for making field measurements of the absorption of rooms (see also 5.5). A method to measure the absorption of rooms in the field is described in Test Method E2235.  
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Standard Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings

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5.1 The main part of this standard uses procedures originally developed for laboratory measurements of the sound transmission loss of partitions. These procedures assume that the rooms in which the measurements are performed have a sound field that reasonably approximates a diffuse field. Sound pressure levels in such rooms are reasonably uniform throughout the room and average levels vary inversely with the logarithm of the room sound absorption. Not all rooms will satisfy these conditions. Experience and controlled studies (1)6 have shown that the test method is applicable to smaller spaces normally used for work or living, such as rooms in multi-family dwellings, hotel guest rooms, meeting rooms, and offices with volumes less than 150 m3. The measures appropriate for such spaces are NR, NNR, and ATL. The corresponding single number ratings are NIC, NNIC and ASTC. The ATL and ASTC are measurable between larger spaces that meet a limitation on absorption in the spaces to provide uniform sound distribution.  
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1.1 This test method covers the laboratory measurement of impact sound transmission of floor-ceiling assemblies using a standardized tapping machine. It is assumed that the test specimen constitutes the primary sound transmission path into a receiving room located directly below and that a good approximation to a diffuse sound field exists in this room.  
1.2 Measurements may be conducted on floor-ceiling assemblies of all kinds, including those with floating-floor or suspended ceiling elements, or both, and floor-ceiling assemblies surfaced with any type of floor-surfacing or floor-covering materials.  
1.3 This test method prescribes a uniform procedure for reporting laboratory test data, that is, the normalized one-third octave band sound pressure levels transmitted by the floor-ceiling assembly due to the tapping machine.  
1.4 Laboratory Accreditation—The requirements for accrediting a laboratory for performing this test method are given in Annex A2.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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3.1 Definitions—Terms and related definitions given in Section 4 are intended for use uniformly and consistently in all building and environmental acoustic test standards in which they appear.  
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3.2.4.1 Discussion—The mandatory language of section 3.2.4 is consistent with the mandatory language from §E2 of Form and Style for ASTM Standards (April 2020) and with the ASTM Committee E33 bylaws in place when this standard was published; it reflects a situation that exists, it does not prescribe anything.  
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1.1 This terminology covers terms, related definitions, and descriptions of terms used or likely to be used in building and environmental acoustics standards. Definitions of terms are special-purpose definitions that are consistent with the standard definitions but are written to ensure that a specific building and environmental acoustics standard is properly understood and precisely interpreted. The primary focus of this document is upon terms, definitions and descriptions found within standards under the jurisdiction of ASTM Committee E33; however, terms, definitions and descriptions that are of general interest to the field of acoustics are also included.  
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SIGNIFICANCE AND USE
5.1 The specific airflow resistance of an acoustical material is one of the properties that determine its sound-absorptive and sound-transmitting properties. Measurement of specific airflow resistance is useful during product development, for quality control during manufacture, and for specification purposes.  
5.2 Valid measurements are made only in the region of laminar airflow where, aside from random measurement errors, the airflow resistance (R = P/U) is constant. When the airflow is turbulent, the apparent airflow resistance increases with an increase of volume velocity and the term “airflow resistance” does not apply.  
5.3 The specific airflow resistance measured by this test method may differ from the specific resistance measured by the impedance tube method in Test Method E384 for two reasons. In the presence of sound, the particle velocity inside a porous material is alternating while in this test method, the velocity is constant and in one direction only. Also, the particle velocity inside a porous material is not the same as the linear velocity measured outside the specimen.
SCOPE
1.1 This test method covers the measurement of airflow resistance and the related measurements of specific airflow resistance and airflow resistivity of porous materials that can be used for the absorption and attenuation of sound. Materials cover a range from thick boards or blankets to thin mats, fabrics, papers, and screens. When the material is anisotropic, provision is made for measurements along different axes of the specimen.  
1.2 This test method is designed for the measurement of values of specific airflow resistance ranging from 100 to 10 000 mks rayls (Pa·s/m) with linear airflow velocities ranging from 0.5 mm/s to 50 mm/s and pressure differences across the specimen ranging from 0.1 Pa to 250 Pa. The upper limit of this range of linear airflow velocities is a point at which the airflow through most porous materials is in partial or complete transition from laminar to turbulent flow.  
1.3 A procedure for accrediting a laboratory for the purposes of this test method is given in Annex A1.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4.1 Table 1 is provided for user to convert into cgs units.    
cgs acoustic ohm  
mks acoustic ohm (Pa·s/m3)  
105  
cgs rayl  
mks rayl (Pa·s/m)  
10    
cgs rayl/cm  
mks rayl/m (Pa·s/m2)  
103  
cgs rayl/in.  
mks rayl/m (Pa·s/m2)  
394  
mks rayl/in.  
mks rayl/m (Pa·s/m2)  
39.4  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM C384-04(2022)(Test Method)
Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method

SIGNIFICANCE AND USE
5.1 The acoustical impedance properties of a sound absorptive material are related to its physical properties, such as airflow resistance, porosity, elasticity, and density. As such, the measurements described in this test method are useful in basic research and product development of sound absorptive materials.  
5.2 Normal incidence sound absorption coefficients are more useful than random incidence coefficients in certain situations. They are used, for example, to predict the effect of placing material in a small enclosed space, such as inside a machine.  
5.3 Estimates of the random incidence or statistical absorption coefficients for materials can be obtained from normal incidence impedance data. For materials that are locally reacting, that is, without sound propagation inside the material parallel to its surface, statistical absorption coefficients can be estimated from specific normal acoustic impedance values using an expression derived by London (1).5 Locally reacting materials include those with high internal losses parallel with the surface such as porous or fibrous materials of high density or materials that are backed by partitioned cavities such as a honeycomb core. Formulas for estimating random incidence sound absorption properties for both locally and bulk-reacting materials, as well as for multilayer systems with and without air spaces have also been developed (2).
SCOPE
1.1 This test method covers the use of an impedance tube, alternatively called a standing wave apparatus, for the measurement of impedance ratios and the normal incidence sound absorption coefficients of acoustical materials.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM E1042-22(Classification)
Standard Classification for Acoustically Absorptive Materials Applied by Trowel or Spray

SIGNIFICANCE AND USE
4.1 Acoustically absorptive materials are used for the control of reverberation and echoes in rooms. This standard provides a classification method for acoustically absorptive materials applied directly to surfaces by trowel or by spray.
SCOPE
1.1 This classification covers materials applied by trowel or spray to surfaces for the purpose of increasing their acoustical absorption.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM E1573-22(Test Method)
Standard Test Method for Measurement and Reporting of Masking Sound Levels Using A-Weighted and One-Third-Octave-Band Sound Pressure Levels

SIGNIFICANCE AND USE
5.1 Acoustical performance is dependent on many factors (see Guide E1374 for a discussion on general office acoustical considerations). One of these factors is the masking sound. The masking spectrum shape and level must conform within specified tolerances throughout the treated area. The measurement and recording of these parameters are addressed in this test method.  
5.2 The results from this test method are used to determine if the masking sound meets a particular specification.
SCOPE
1.1 This test method specifies the procedure used to measure the masking sound in terms of A-weighted and one-third-octave-band sound pressure levels.  
1.2 The results of this test method can be used to determine if and where the masking sound meets (or does not meet) a particular specification.  
1.3 This test method does not evaluate the overall acoustical environment. It is intended only to measure and report the masking sound levels.  
1.4 The values stated in SI units are to be regarded as standard. The values in parentheses are for information only.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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