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ASTM E1289-97(2003)

(Specification)

Standard Specification for Reference Specimen for Sound Transmission Loss

Standard Specification for Reference Specimen for Sound Transmission Loss

SCOPE
1.1 This specification describes the construction and installation of a standard reference specimen for quality control of laboratory sound transmission loss measurements using Test Method E90. Test Method E90 allows a significant latitude in the construction and operation of a test facility. It is the objective of standard measurement procedures that the property of a reference specimen being measured have the same value in all facilities.
1.2 This specification addresses the need for a reference specimen for sound transmission loss facilities where measurements are made according to Test Method E90. It describes in detail how the specimen is to be constructed and installed in a test opening.
1.3 The values stated in SI units are to be regarded as standard. The values in parentheses are provided for information only.

General Information

Status
Historical
Publication Date
30-Sep-2003
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

Replaces
ASTM E1289-97 - Standard Specification for Reference Specimen for Sound Transmission Loss
Effective Date
01-Oct-2003
Replaced By
ASTM E1289-08 - Standard Specification for Reference Specimen for Sound Transmission Loss
Effective Date
15-Jan-2008
Referred By
ASTM E90-09(2016) - Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
Effective Date
01-Oct-2003
Referred By
ASTM C634-22 - Standard Terminology Relating to Building and Environmental Acoustics
Effective Date
01-Oct-2003

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ASTM E1289-97(2003) - Standard Specification for Reference Specimen for Sound Transmission LossASTM E1289-97(2003) - Standard Specification for Reference Specimen for Sound Transmission Loss
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ASTM E1289-97(2003) - Standard Specification for Reference Specimen for Sound Transmission Loss
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E 1289 – 97 (Reapproved 2003)
Standard Specification for
Reference Specimen for Sound Transmission Loss
This standard is issued under the fixed designation E 1289; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope
Duct tape, 50 mm (2 in.) wide.
Drywall screws, Type W—length, 31.8 mm (1.25 in.).
1.1 This specification describes the construction and instal-
Bolts (10–24 by 1 in.)—25 mm long with appropriate nuts and washers.
lation of a standard reference specimen for quality control of
Fasteners, to hold wood frame to the perimeter of the test opening.
Caulking, non-hardening.
laboratory sound transmission loss measurements using Test
Wood framing, approximately 40 mm by 90 mm (2 by 4 in. nominal) in width
Method E 90. Test Method E 90 allows a significant latitude in
and thickness.
the construction and operation of a test facility. It is the
NOTE 1—The quantity and length of each component needed depends
objective of standard measurement procedures that the prop-
on the size of the laboratory test opening.
erty of a reference specimen being measured have the same
4.1.2 The weight of each component of the reference
value in all facilities.
specimen and the assembled specimen shall be measured and
1.2 This specification addresses the need for a reference
kept on record. In addition, the thickness of each of the steel
specimen for sound transmission loss facilities where measure-
panels shall be measured in six locations. (See Appendix X1.)
ments are made according to Test Method E 90. It describes in
4.2 Assembly:
detail how the specimen is to be constructed and installed in a
4.2.1 Sheets—The 1200-mm (4-ft nominal)-wide rectangu-
test opening.
lar galvanized sheets shall be 24 gauge, 0.62 mm (0.024 in.)
1.3 The values stated in SI units are to be regarded as
thick. The weight of the sheets shall be 5.1 6 0.7 kg/m (1.05
standard. The values in parentheses are provided for informa-
6 0.15 lb/ft ). The length of each sheet shall be a few
tion only.
millimeters less than the height of the laboratory test opening.
2. Referenced Documents
The total width of all the sheets shall be a few millimeters less
than the width of the test opening. This may require that one
2.1 ASTM Standards:
sheet be cut lengthwise. The intent is that when installed, the
C 634 Terminology Relating to Environmental Acoustics
panels fill the test opening completely.
E 90 Test Method for Laboratory Measurement of
4.2.2 Frame—Cut steel right angles to size to form a frame
Airborne-Sound Transmission Loss of Building Partitions
for each sheet; the frame shall have the same outside dimen-
3. Terminology
sions as the sheets. Notch and weld the steel angles to form the
four corners of the frame as shown in Fig. 1. Alternatively,
3.1 Definitions—For definitions of terms used in this speci-
miter the angles and weld similarly. Smooth corners after
fication, see Terminology C 634.
welding.
4. Construction of Reference Specimen
4.2.3 Panels—Construct a panel by riveting steel sheets to
the frames.
4.1 General:
4.2.3.1 Drill holes at 100 mm (4 in.) on-center around the
4.1.1 The reference specimen is composed of framed steel
perimeterofthesheetsfortheinstallationoftheblindrivets.To
panels. The required materials for fabrication and installation
assure proper alignment of the sheets with the frame, it is
are as follows:
recommended to drill a few holes and then install rivets to hold
Galvanized steel sheets—width, 1200 mm (4 ft); thickness, 0.62 mm (0.024 in.
or 24 gauge). Check weight for compliance with limits given in 4.2.1. the sheet in place. Once this is done, the remaining holes may
Steel right angles with 25-mm (1-in.) flanges—thickness, 3.2 mm (0.125 in.).
be drilled and the rivets installed. Position these holes to avoid
Blind rivets—diameter, 3 mm (0.125 in.).
conflict with the clearance holes described in 4.2.3.2.
4.2.3.2 Drill 4 mm (0.16 in.) diameter holes through hori-
zontal members of the frame and sheet as shown in Figs. 2 and
3. These are clearance holes for the drywall screws used to
This specification is under the jurisdiction of ASTM Committee E33 on
EnvironmentalAcousticsandisthedirectresponsibilityofSubcommitteeE33.03on
attach the panel to the wood plate (see 5.5).
Sound Transmission.
4.2.3.3 Drill 6.4 mm (0.25 in.) diameter holes at 400 mm
Current edition approved Oct. 1, 2003. Published October 2003. Originally
(16 in.) on-center through the vertical flanges of the steel
approved in 1989. Last previous edition approved in 1997 as E 1289 – 97.
Annual Book of ASTM Standards, Vol 04.06. frame. These are clearance holes for the bolts used to connect
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E 1289 – 97 (2003)
FIG. 3 Construction Details of Steel Panels (not to scale)
caulking between the wood frame and the surface of the
laboratory opening. Use suitable fasteners no more than 300
mm (11.8 in.) on-center.
5.2 Place the reference specimen against the wood frame
with the flanges of the panel frames as shown in Fig. 4.
FIG. 1 Notching and Welding Corners of Steel Angles
5.3 Insert 25-mm (1-in.) long No. 10-24 bolts or equivalent
through the holes in adjacent vertical flanges drilled according
to 4.2.3.3. Washers may be used if desired. Tighten nut snugly
to close the gap between adjacent panels.
5.4 Fasten
...

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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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