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ASTM E1289-08(2022)

(Specification)

Standard Specification for Reference Specimen for Sound Transmission Loss

Standard Specification for Reference Specimen for Sound Transmission Loss

ABSTRACT
This specification describes the construction and installation of standard reference specimens for quality control of laboratory sound transmission loss measurements. The reference specimen is composed of framed steel panels. The required materials for fabrication and installation are as follows: galvanized sheets, frame, and panels. Four kinds of installation may be done: Installation A using a single layer reference specimen, Installation B using double layer reference specimen with a common plate, Installation C using double layer reference specimen with separate plates-empty cavity, and Installation D using double layer reference specimen with separate plates and added layer of sound-absorbing material in the cavity.
SCOPE
1.1 This specification describes the construction and installation of standard reference specimens for quality control of laboratory sound transmission loss measurements using Test Method E90.  
1.2 Laboratories may choose to construct and test all of the reference specimens described here or only a subset. Specific specimens may be required by a test method or an accrediting agency.  
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.  
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.

General Information

Status
Published
Publication Date
31-Mar-2022
ICS
17.140.01 - Acoustic measurements and noise abatement in general
Technical Committee
E33 - Building and Environmental Acoustics
Drafting Committee
E33.03 - Sound Transmission
Current Stage
Ref Project

Relations

Refers
ASTM E90-23 - Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
Effective Date
01-Dec-2023
Refers
ASTM E90-09(2016) - Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
Effective Date
01-Dec-2016
Refers
ASTM C634-13 - Standard Terminology Relating to Building and Environmental Acoustics
Effective Date
01-Sep-2013
Refers
ASTM C634-11 - Standard Terminology Relating to Building and Environmental Acoustics
Effective Date
01-Dec-2011
Refers
ASTM C634-10a - Standard Terminology Relating to Building and Environmental Acoustics
Effective Date
01-Sep-2010
Refers
ASTM C634-10 - Standard Terminology Relating to Building and Environmental Acoustics
Effective Date
01-Jun-2010
Refers
ASTM E90-09 - Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
Effective Date
01-Jul-2009
Refers
ASTM C634-09 - Standard Terminology Relating to Building and Environmental Acoustics
Effective Date
01-Apr-2009
Refers
ASTM C634-08a - Standard Terminology Relating to Building and Environmental Acoustics
Effective Date
01-Sep-2008
Refers
ASTM C634-08 - Standard Terminology Relating to Building and Environmental Acoustics
Effective Date
15-Mar-2008
Refers
ASTM E90-04 - Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
Effective Date
01-Apr-2004
Refers
ASTM E90-02 - Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
Effective Date
10-May-2002
Refers
ASTM C634-02e1 - Standard Terminology Relating to Building and Environmental Acoustics
Effective Date
10-Apr-2002
Refers
ASTM C634-02 - Standard Terminology Relating to Environmental Acoustics
Effective Date
10-Apr-2002
Refers
ASTM C634-01 - Standard Terminology Relating to Environmental Acoustics
Effective Date
10-Jun-2001

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ASTM E1289-08(2022) - Standard Specification for Reference Specimen for Sound Transmission LossASTM E1289-08(2022) - Standard Specification for Reference Specimen for Sound Transmission Loss
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ASTM E1289-08(2022) - Standard Specification for Reference Specimen for Sound Transmission Loss
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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.
Designation:E1289 −08 (Reapproved 2022)
Standard Specification for
Reference Specimen for Sound Transmission Loss
This standard is issued under the fixed designation E1289; 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. Scope 4.1.1 The reference specimen is composed of framed steel
panels. The required materials for fabrication and installation
1.1 This specification describes the construction and instal-
are as follows:
lation of standard reference specimens for quality control of
Galvanized steel sheets—width, 1220 mm (4 ft); nominal thickness, 0.63 mm
laboratory sound transmission loss measurements using Test
(24 gauge). The weight of the sheets shall be 5.1 ± 0.7 kg/m (1.05 ± 0.15 lb/
Method E90.
ft ).
Steel right angles with 25-mm (1-in.) flanges—metal thickness, 3.2 mm ( ⁄8 in.).
1.2 Laboratories may choose to construct and test all of the
Blind rivets—diameter, 3.2 mm ( ⁄8 in. ).
reference specimens described here or only a subset. Specific
Duct tape, 50 mm (2 in.) wide.
specimens may be required by a test method or an accrediting Drywall screws, Type W—length, 32 mm (1.25 in.).
Bolts #10–24 —25 mm (1 in.) long with appropriate nuts and washers.
agency.
Fasteners, to hold wood frame to the perimeter of the test opening.
Non-hardening, caulking,
1.3 The values stated in SI units are to be regarded as
Nominal 2 by 4 in. wood framing, approximately 40 by 90 mm.
standard. The values given in parentheses are for information
NOTE 1—The quantity and length of each component needed depends
only.
on the size of the laboratory test opening.
1.4 This international standard was developed in accor-
NOTE 1—To simplify cleaning, the wood framing used to support the
dance with internationally recognized principles on standard-
steel panels may be painted.
ization established in the Decision on Principles for the
4.1.2 The weight of each component of the reference
Development of International Standards, Guides and Recom-
specimen and the assembled specimen shall be measured and
mendations issued by the World Trade Organization Technical
kept on record. In addition, the thickness of each of the steel
Barriers to Trade (TBT) Committee.
panels shall be measured in six locations. (See Appendix X1.)
2. Referenced Documents
4.2 Assembly:
2.1 ASTM Standards:
4.2.1 Galvanized Sheets—The length of each galvanized
C634 Terminology Relating to Building and Environmental
sheet shall be a few millimetres less than the height of the
Acoustics
laboratory test opening. The total width of all the sheets shall
E90 Test Method for Laboratory Measurement of Airborne
be a few millimetres less than the width of the laboratory test
Sound Transmission Loss of Building Partitions and
opening. This may require that one or more sheets be cut
Elements
lengthwise.The intent is that, when installed, the panels fill the
test opening completely.
3. Terminology
4.2.2 Frame—Cut steel right angles to size to form a frame
3.1 Definitions—For definitions of terms used in this
for each sheet; the frame shall have the same outside dimen-
specification, see Terminology C634.
sions as the sheets. Notch and weld the steel angles to form the
four corners of the frame as shown in Fig. 1. Alternatively,
4. Construction of Reference Specimen
miter the angles and weld similarly. Smooth corners after
4.1 General:
welding.
4.2.3 Panels—Construct a panel by riveting steel sheets to
1 the frames as follows:0
This specification is under the jurisdiction of ASTM Committee E33 on
Building and Environmental Acoustics and is the direct responsibility of Subcom-
4.2.3.1 Drill holes at 100 mm (4 in.) on-center around the
mittee E33.03 on Sound Transmission.
perimeterofthesheetsfortheinstallationoftheblindrivets.To
Current edition approved April 1, 2022. Published April 2022. Originally
ensure proper alignment of the sheets with the frame, it is
approved in 1989. Last previous edition approved in 2016 as E1289 – 08 (2016).
DOI: 10.1520/E1289-08R22.
recommended to drill a few holes and then install rivets to hold
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the sheet in place. Once this is done, the remaining holes may
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
be drilled and the rivets installed. Position these holes to avoid
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. conflict with the clearance holes described in 4.2.3.2.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E1289−08 (2022)
FIG. 1 Notching and Welding Corners of Steel Angles
4.2.3.2 Drill 4 mm ( ⁄32 inch) diameter holes through the
horizontal members of the frame and sheet as shown in Fig. 2.
These are clearance holes for the drywall screws used to attach
the panel to the wood plate (see 5.4). Drill similar holes
through the vertical members of the panels that will be used to
FIG. 2 Construction Details of Steel Panels (not to scale)
attach the assembled specimen to the vertical wood plates. The
spacing between these holes is not important.
4.2.3.3 Drill 6.4 mm ( ⁄4 in.) diameter holes at 406 mm (16
in.) on-center through the vertical flanges of the steel frame.
These are clearance holes for the bolts used to connect the
panels together (see 5.3 and Fig. 3). The holes in adjacent
verticalmembersshouldbecarefullyalignedwitheachotherto
ease installation of the panels.
5. Installation A: Single Layer Reference Specimen
5.1 Using approximately 40 mm by 90 mm wood studs
(nominal 2 in. by 4 in.), install a wood frame around the
perimeter of the laboratory opening. Use a double bead of
caulking between the wood frame and the surface of the
FIG. 3 Construction Details of Steel Panels (not to scale)
laboratory opening. Use suitable fasteners no more than 305
mm (12 in.) on-center.
5.2 Place the reference specimen against the wood frame
5.5 Seal the test panel joints on both sides with a single
with the flanges of the panel frames as shown in Fig. 4.
layer of 50-mm (2-in.) wide duct tape (centered on the joints).
NOTE 1—The panels are positioned 75 mm from the mid-plane of the
laboratory test opening to minimize changes when laboratories intend to
5.6 Seal the perimeter joint on both sides with a single layer
testotherreferencespecimensdescribedinthisdocumentthatuseseparate
of 50-mm (2-in.) wide duct tape (centered on the joints) as
plates.
shown in Fig. 4.
NOTE 2—The direction of sound transmission for these reference
specimens is not important. It can be left-to-right or right-to-left.
6. Installation B: Double Layer Reference Specimen
5.3 Insert 25-mm (1-in.) l
...

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1.1.5 Obtaining source data for use in sound prediction models.  
1.2 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.  
1.3 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 E2611-19(Test Method)
Standard Test Method for Normal Incidence Determination of Porous Material Acoustical Properties Based on the Transfer Matrix Method

SIGNIFICANCE AND USE
5.1 There are several purposes of this test:  
5.1.1 For transmission loss: (a) to characterize the sound insulation characteristics of materials in a less expensive and less time consuming approach than Test Method E90 and ISO 140-3 (“reverberant room methods”),  (b) to allow small samples tested when larger samples are impossible to construct or to transport, (c) to allow a rapid technique that does not require an experienced professional to run.  
5.1.2 For transfer matrix: (a) to determine additional acoustic properties of the material; (b) to allow calculation of acoustic properties of built-up or composite materials by the combination of their individual transfer matrices.  
5.2 There are significant differences between this method and that of the more traditional reverberant room method. Specifically, in this approach the sound impinges on the specimen in a perpendicular direction (“normal incidence”) only, compared to the random incidence of traditional methods. Additionally, revereration room methods specify certain minimum sizes for test specimens which may not be practical for all materials. At present the correlation, if any, between the two methods is not known. Even though this method may not replicate the reverberant room methods for measuring the transmission loss of materials, it can provide comparison data for small specimens, something that cannot be done in the reverberant room method. Normal incidence transmission loss may also be useful in certain situations where the material is placed within a small acoustical cavity close to a sound source, for example, a closely-fitted machine enclosure or portable electronic device.  
5.3 Transmission loss is not only a property of a material, but is also strongly dependent on boundary conditions inherent in the method and details of the way the material is mounted. This must be considered in the interpretation of the results obtained by this test method.  
5.4 The quantities are measured as a functio...
SCOPE
1.1 This test method covers the use of a tube, four microphones, and a digital frequency analysis system for the measurement of normal incident transmission loss and other important acoustic properties of materials by determination of the acoustic transfer matrix.  
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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  • Standard
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ASTM
ASTM E1110-06(2019)(Classification)
Standard Classification for Determination of Articulation Class

SIGNIFICANCE AND USE
4.1 Each weighting factor given in Table 1 represents the fraction of overall speech intelligence contained within the associated one-third octave frequency band.  
4.2 The weighting factors in Table 1 are obtained by multiplying each individual one-third octave band weighting factor of ANSI S3.5-1969 by 300. Articulation class (AC) values are thus related to but distinctly different from articulation index (AI) values. In particular, the AC considers only the effect of signal attenuation; while the AI considers such additional factors as speech level and spectrum and background sound level and spectrum.
Note 2: The AC is similar to the DAI rating proposed by Warnock6 and has been shown to correlate with AI values derived from ANSI S3.5, except where the AI approaches 1 or 0 (AI values range between 1 and 0 and approach 0 with increasing privacy and nonintelligibility). Articulation class values give the reverse. They usually exceed 100 and increase with increasing privacy and nonintelligibility. Extensive comparison between AC ratings and subjective judgments of open-plan speech privacy has not yet been accomplished.
SCOPE
1.1 This classification provides a single figure rating that can be used for comparing building systems and subsystems for speech privacy purposes. The rating is designed to correlate with transmitted speech intelligence between office spaces.  
1.2 Excluded from the scope of this classification are applications involving female speakers or children,2 languages other than English, and sound spectra other than speech. Thus excluded, for example, would be comparisons of building systems or subsystems for their effectiveness in reducing transmitted noise from machinery, industrial processes, bowling alleys, music rooms, places of entertainment, and the like.  
Note 1: Published work by Pearsons, et al, may eventually permit the restriction on female speakers to be relaxed.3  
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 E1179-13(2019)(Specification)
Standard Specification for Sound Sources Used for Testing Open Office Components and Systems

ABSTRACT
This specification states the requirements for sound sources used for measuring the speech privacy between open offices or for measuring the laboratory performance of acoustical components. The sound source shall be a loudspeaker enclosed in a box that has a maximum dimension of 0.30 m (1 ft) on a side, to reduce spurious sound reflections. The measurements shall be carried out in a free sound field. The measurement microphone, amplifier, and level meter used to measure sound pressure levels shall satisfy the requirements prescribed. When the sound source is driven with the qualification signal, the sound output shall be adequate to maintain one-third octave-band sound pressure levels at least 10 dB above the corresponding background noise in each band at each measurement location. The directivity of the sound source shall be verified by driving the source with the qualification signal and measuring the sound pressure levels at measurement points.
SCOPE
1.1 This specification states the requirements for sound sources used for measuring the speech privacy between open offices and for measuring the laboratory performance of acoustical components (see Test Methods E1111 and E1130).  
1.2 The sound source shall be a loudspeaker located in an enclosure driven with an appropriate test signal.  
1.3 This specification describes the sound source and method of qualifying it using a special qualification signal. Test signals required by open office test methods may differ.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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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