ASTM E1130-02

Standard Test Method for Objective Measurement of Speech Privacy in Open Offices Using Articulation Index

SCOPE
1.1 This test method describes a means of measuring speech privacy objectively between locations in open offices. This test method relies upon acoustical measurements, published information on speech levels, and standard methods for assessing speech communication. This test method does not measure the performance of individual open office components which affect speech privacy; it measures the privacy which results from a particular configuration of components (1, 2).
1.2 This test method is intended to be a field test for the measurement of speech privacy in actual open offices. However, this test method could be used in an environment arranged to simulate an open office.
1.3 This test method could be adapted for use in other open plan spaces such as open plan schools. It could also be adapted for measuring the speech privacy between open plan and enclosed spaces or between fully enclosed spaces.
1.4 This test method relies upon the Articulation Index which predicts the intelligibility of speech for a group of talkers and listeners. While both the Articulation Index and this test method can be expected to reliably predict average speech privacy, neither predicts the specific degree of speech privacy afforded to particular open office occupants.
1.5 The values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are for information only.
1.6 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.

General Information

• Status: Historical
• Publication Date: 09-Jan-2002
• Technical Committee: E33 - Building and Environmental Acoustics
• Drafting Committee: E33.02 - Speech Privacy

Relations

• Replaces: ASTM E1130-90(1994)e1 - Standard Test Method for Objective Measurement of Speech Privacy in Open Offices Using Articulation Index
• Effective Date: 10-Jan-2002
• Replaced By: ASTM E1130-02e1 - Standard Test Method for Objective Measurement of Speech Privacy in Open Offices Using Articulation Index
• Effective Date: 10-Jan-2002
• Referred By: ASTM E2638-10(2017) - Standard Test Method for Objective Measurement of the Speech Privacy Provided by a Closed Room
• Effective Date: 10-Jan-2002
• Referred By: ASTM E3091-17 - Standard Specification for Systems to Measure Sound Levels
• Effective Date: 10-Jan-2002
• Referred By: ASTM E1179-13(2019) - Standard Specification for Sound Sources Used for Testing Open Office Components and Systems
• Effective Date: 10-Jan-2002
• Referred By: ASTM E1374-18e1 - Standard Guide for Office Acoustics and Applicable ASTM Standards
• Effective Date: 10-Jan-2002
• Referred By: ASTM C634-22 - Standard Terminology Relating to Building and Environmental Acoustics
• Effective Date: 10-Jan-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: E 1130 – 02
Standard Test Method for
Objective Measurement of Speech Privacy in Open Offices
1
Using Articulation Index
This standard is issued under the fixed designation E 1130; 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.
INTRODUCTION
This is one of a series of test methods for evaluating the acoustical characteristics of open office
environments and the performance of acoustical components. Other proposed test methods in this
series deal with the laboratory measurement of interzone attenuation of partial height space dividers
and ceiling systems.
1. Scope priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
1.1 This test method describes a means of measuring speech
privacy objectively between locations in open offices. This test
2. Referenced Documents
method relies upon acoustical measurements, published infor-
2.1 ASTM Standards:
mation on speech levels, and standard methods for assessing
C 384 Test Method for Impedance and Absorption of
speech communication. This test method does not measure the
3
Acoustical Materials by the Impedance Tube Method
performance of individual open office components which affect
3
C 634 Terminology Relating to Environmental Acoustics
speech privacy; it measures the privacy which results from a
2
E 1041 Guide for Measurement of Masking Sound in Open
particular configuration of components (1, 2).
3
Offices
1.2 This test method is intended to be a field test for the
E 1179 Specification for Sound Sources Used for Testing
measurement of speech privacy in actual open offices. How-
3
Open Office Components and Systems
ever, this test method could be used in an environment
4
2.2 ANSI Standards:
arranged to simulate an open office.
S1.4 Specification for Sound Level Meters
1.3 This test method could be adapted for use in other open
S1.6 Preferred Frequencies and Band Numbers for Acous-
plan spaces such as open plan schools. It could also be adapted
tical Measurements
for measuring the speech privacy between open plan and
S1.11 Specification for Octave, Half-Octave and One-Third
enclosed spaces or between fully enclosed spaces.
Octave Band Filter Sets
1.4 This test method relies upon the Articulation Index
which predicts the intelligibility of speech for a group of
3. Terminology
talkers and listeners. While both the Articulation Index and this
3.1 Definitions—The acoustical terminology used in this
test method can be expected to reliably predict average speech
test method is consistent with Terminology C 634. Of special
privacy, neither predicts the specific degree of speech privacy
importance are the terms average sound pressure level and
afforded to particular open office occupants.
arithmetic mean sound pressure level, both of which are
1.5 The values stated in SI units are to be regarded as the
defined in Terminology C 634, and source point which is
standard. The inch-pound units in parentheses are for informa-
defined in Specification E 1179.
tion only.
1.6 This standard does not purport to address all of the
4. Summary of Test Method
safety concerns, if any, associated with its use. It is the
4.1 Select two locations in an open office environment,
responsibility of the user of this standard to establish appro-
between which the speech privacy is to be measured. Designate
one location as the talker or source location and the other as the
1
listener or measurement location. These locations should typify
This test method is under the jurisdiction of ASTM Committee E33 on
Environmental Acoustics and is the direct responsibility of Subcommittee E33.02 on
the usual working positions of office occupants.
Open Plan Spaces.
Current edition approved Jan. 10, 2002. Published February 2002. Originally
e1 3
published as E 1130 – 86. Last previous edition E 1130 – 90 (1994) . Annual Book of ASTM Standards, Vol 04.06.
2 4
The boldface numbers in parentheses refer to the list of references at the end of Available from American National Standards Institute, 11 W. 42nd St., 13th
this test method. Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E 1130
4.2 All masking sound systems and HVAC systems shall be the measure of speech privacy.
operating in their usual manner.
5. Significance and Use
4.3 At the listener location, measure the ambient sound
5.1 The speech privacy between open offices is determined
pressure levels in each one-third octave-band from 200 to 5000
...