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ASTM E1289-97

(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
09-Nov-1997
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

Replaced By
ASTM E1289-97(2003) - Standard Specification for Reference Specimen for Sound Transmission Loss
Effective Date
01-Oct-2003
Referred By
ASTM E90-09(2016) - Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
Effective Date
10-Nov-1997
Referred By
ASTM C634-22 - Standard Terminology Relating to Building and Environmental Acoustics
Effective Date
10-Nov-1997

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ASTM E1289-97 - Standard Specification for Reference Specimen for Sound Transmission LossASTM E1289-97 - Standard Specification for Reference Specimen for Sound Transmission Loss
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ASTM E1289-97 - Standard Specification for Reference Specimen for Sound Transmission Loss
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: E 1289 – 97
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
Bolts (10–24 by 1 in.)—25 mm long with appropriate nuts and washers.
Fasteners, to hold wood frame to the perimeter of the test opening.
1.1 This specification describes the construction and instal-
Caulking, non-hardening.
lation of a standard reference specimen for quality control of Wood framing, approximately 40 mm by 90 mm (2 by 4 in. nominal) in width
and thickness.
laboratory sound transmission loss measurements using Test
Method E 90. Test Method E 90 allows a significant latitude in
NOTE 1—The quantity and length of each component needed depends
the construction and operation of a test facility. It is the on the size of the laboratory test opening.
objective of standard measurement procedures that the prop-
4.1.2 The weight of each component of the reference
erty of a reference specimen being measured have the same
specimen and the assembled specimen shall be measured and
value in all facilities.
kept on record. In addition, the thickness of each of the steel
1.2 This specification addresses the need for a reference
panels shall be measured in six locations. (See Appendix X1.)
specimen for sound transmission loss facilities where measure-
4.2 Assembly:
ments are made according to Test Method E 90. It describes in
4.2.1 Sheets—The 1200-mm (4-ft nominal)-wide rectangu-
detail how the specimen is to be constructed and installed in a
lar galvanized sheets shall be 24 gauge, 0.62 mm (0.024 in.)
test opening.
thick. The weight of the sheets shall be 5.1 6 0.7 kg/m (1.05
1.3 The values stated in SI units are to be regarded as
6 0.15 lb/ft ). The length of each sheet shall be a few
standard. The values in parentheses are provided for informa-
millimeters less than the height of the laboratory test opening.
tion only.
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. Referenced Documents
sheet be cut lengthwise. The intent is that when installed, the
2.1 ASTM Standards:
panels fill the test opening completely.
C 634 Terminology Relating to Environmental Acoustics
E 90 Test Method for Laboratory Measurement of
Airborne-Sound Transmission Loss of Building Partitions
3. Terminology
3.1 Definitions—For definitions of terms used in this speci-
fication, see Terminology C 634.
4. Construction of Reference Specimen
4.1 General:
4.1.1 The reference specimen is composed of framed steel
panels. The required materials for fabrication and installation
are as follows:
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.
Steel right angles with 25-mm (1-in.) flanges—thickness, 3.2 mm (0.125 in.).
Blind rivets—diameter, 3 mm (0.125 in.).
Duct tape, 50 mm (2 in.) wide.
Drywall screws, Type W—length, 31.8 mm (1.25 in.).
This specification is under the jurisdiction of ASTM Committee E-33 on
Environmental Acoustics and is the direct responsibility of Subcommittee E33.03 on
FIG. 1 Notching and Welding Corners of Steel Angles
Sound Transmission.
Current edition approved Nov. 10, 1997. Published July 1998. Originally
published as E 1289 – 89. Last previous edition E 1289 – 91.
Annual Book of ASTM Standards, Vol 04.06. 4.2.2 Frame—Cut steel right angles to size to form a frame
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
E1289–97
for each sheet; the frame shall have the same outside dimen-
sions as the sheets. Notch and weld the steel angles to form the
four corners of the frame as shown in Fig. 1. Alternatively,
miter the angles and weld similarly. Smooth corners after
welding.
4.2.3 Panels—Construct a panel by riveting steel sheets to
the frames.
4.2.3.1 Drill holes at 100 mm (4 in.) on-center around the
perimeter of the sheets for the installation of the blind rivets. To
assure proper alignment of the sheets with the frame, it is
recommended to drill a few holes and then install rivets to hold
the sheet in place. Once this is done, the remaining holes may
be drilled and the rivets installed. Position these holes to avoid FIG. 3 Construction Details of Steel Panels (not to scale)
conflict with the clearance holes described in 4.2.3.2.
perimeter of the laboratory opening. Use a double bead of
4.2.3.2 Drill 4 mm (0.16 in.) diameter holes through hori-
caulking between the wood frame and the surface of the
zontal members of the frame and sheet as shown in Figs. 2 and
laboratory opening. Use suitable fasteners no more than 300
3. These are clearance holes for the drywall screws used to
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.
NOTE 1—Wood frame caulked, specimen joints and perimeter taped on
both sides.
FIG. 4 Installation of Reference Specimen Showing Caulking of
Wood Frame and the Taping of the Specimen Joints and
Perimeter on Both Sides
5.3 Insert 25-mm (1-in.) long No. 10-24 bolts or equivalent
through the holes in adjacent vertical flanges drilled according
FIG. 2 Construction Details of Steel Panels (not to scale)
to 4.2.3.3. Washers may be used if desired. Tighten nut snugly
to clo
...

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SCOPE
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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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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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