ASTM E989-21
(Classification)Standard Classification for Determination of Single-Number Metrics for Impact Noise
Standard Classification for Determination of Single-Number Metrics for Impact Noise
SIGNIFICANCE AND USE
4.1 The rating increases as the impact sound attenuation of the floor ceiling structure increases. The rating can be used by architects, builders, and specification and code authorities for acoustical design purposes in building constructions.
4.2 The rating strictly only applies to excitation by the standard tapping machine defined in Test Methods E492 and E1007. It does not deal with low frequency sounds below 100 Hz that are typically generated below lightweight joist floors when they are walked on. Nor does it deal with the squeaking, crunching or rattling sounds that can occur in joist construction when elements in the construction are loose and occupants walk on the floor.
4.3 This classification shall only be used with one-third octave band data.
SCOPE
1.1 This classification provides a method for determining a rating that can be used to compare the levels of impact noise generated by a standard tapping machine and transmitted through different floor-ceiling assemblies.
1.2 The name given to the rating is assigned by the test method that invokes this classification.
1.3 This classification is applicable only to one third octave band impact noise data obtained using the standard tapping machine described in Test Methods E492 and E1007.
1.4 Test methods that invoke this classification include:
1.4.1 Test Method E492 – the single-number rating is called impact insulation class (IIC).
1.4.2 Test Method E1007 – the single-number ratings are called apparent impact insulation class (AIIC), impact sound rating (ISR), and normalized impact sound rating (NISR).
1.4.3 Test Method E2179 – the single-number rating is called the change in impact insulation class (ΔIIC).
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.
General Information
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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:E989 −21
Standard Classification for
1
Determination of Single-Number Metrics for Impact Noise
This standard is issued under the fixed designation E989; 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 C634 Terminology Relating to Building and Environmental
Acoustics
1.1 This classification provides a method for determining a
E492 Test Method for Laboratory Measurement of Impact
rating that can be used to compare the levels of impact noise
Sound Transmission Through Floor-Ceiling Assemblies
generated by a standard tapping machine and transmitted
Using the Tapping Machine
through different floor-ceiling assemblies.
E1007 Test Method for Field Measurement of Tapping
1.2 The name given to the rating is assigned by the test
Machine Impact Sound Transmission Through Floor-
method that invokes this classification.
Ceiling Assemblies and Associated Support Structures
1.3 This classification is applicable only to one third octave
E2179 Test Method for Laboratory Measurement of the
band impact noise data obtained using the standard tapping Effectiveness of Floor Coverings in Reducing Impact
machine described in Test Methods E492 and E1007.
Sound Transmission Through Concrete Floors
1.4 Test methods that invoke this classification include:
3. Terminology
1.4.1 Test Method E492 – the single-number rating is called
impact insulation class (IIC).
3.1 The following terms used in this classification are
1.4.2 Test Method E1007 – the single-number ratings are
defined in Terminology C634.
called apparent impact insulation class (AIIC), impact sound
decibel sound
rating (ISR), and normalized impact sound rating (NISR).
impact insulation class
level
1.4.3 Test Method E2179 – the single-number rating is
octave band
called the change in impact insulation class (∆IIC).
sound insulation
sound pressure
1.5 This standard does not purport to address all of the
sound pressure level
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Significance and Use
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4.1 The rating increases as the impact sound attenuation of
1.6 This international standard was developed in accor-
the floor ceiling structure increases. The rating can be used by
dance with internationally recognized principles on standard-
architects, builders, and specification and code authorities for
ization established in the Decision on Principles for the
acoustical design purposes in building constructions.
Development of International Standards, Guides and Recom-
4.2 The rating strictly only applies to excitation by the
mendations issued by the World Trade Organization Technical
standard tapping machine defined in Test Methods E492 and
Barriers to Trade (TBT) Committee.
E1007. It does not deal with low frequency sounds below 100
Hz that are typically generated below lightweight joist floors
2. Referenced Documents
when they are walked on. Nor does it deal with the squeaking,
2
2.1 ASTM Standards:
crunching or rattling sounds that can occur in joist construction
when elements in the construction are loose and occupants
walk on the floor.
1
This classification is under the jurisdiction of ASTM Committee E33 on
4.3 This classification shall only be used with one-third
Building and Environmental Acoustics and is the direct responsibility of Subcom-
octave band data.
mittee E33.10 on Structural Acoustics and Vibration.
Current edition approved May 1, 2021. Published May 2021. Originally
approved in 1984. Last previous edition approved in 2018 as E989 – 18. DOI:
5. Basis of Classification
10.1520/E0989-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 Table 1 lists the sound pressure levels defining the shape
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
of the reference contour, C(n), for the sixteen one-third octave
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. bands from 100 to 3150 Hz.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E989−21
TABLE 1 Reference Impact Rating Contour Values
Band Number
1 2 3456789 10 11 12 13 14 15 16
A
(n)
Frequency,
100 125 160 200 250 315 400 500 6
...
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.
Designation: E989 − 18 E989 − 21
Standard Classification for
1
Determination of Single-Number Metrics for Impact Noise
This standard is issued under the fixed designation E989; 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
1.1 This classification provides a method for determining a rating that can be used to compare the levels of impact noise generated
by a standard tapping machine and transmitted through different floor-ceiling assemblies.
1.2 The name given to the rating is assigned by the test method that invokes this classification.
1.3 This classification is applicable only to one third octave band impact noise data obtained using the standard tapping machine
described in Test Methods E492 and E1007.
1.4 Test methods that invoke this classification include:
1.4.1 Test Method E492 – the single-number rating is called impact insulation class (IIC).
1.4.2 Test Method E1007 – the single-number ratings are called apparent impact insulation class (AIIC), impact sound rating
(ISR), and normalized impact sound rating (NISR).
1.4.3 Test Method E2179 – the single-number rating is called the change in impact insulation class (ΔIIC).
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.
2. Referenced Documents
2
2.1 ASTM Standards:
C634 Terminology Relating to Building and Environmental Acoustics
E492 Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using the
Tapping Machine
E1007 Test Method for Field Measurement of Tapping Machine Impact Sound Transmission Through Floor-Ceiling Assemblies
and Associated Support Structures
1
This classification is under the jurisdiction of ASTM Committee E33 on Building and Environmental Acoustics and is the direct responsibility of Subcommittee E33.10
on Structural Acoustics and Vibration.
Current edition approved Nov. 1, 2018May 1, 2021. Published December 2018May 2021. Originally approved in 1984. Last previous edition approved in 20122018 as
E989 – 06 (2012).E989 – 18. DOI: 10.1520/E0989-18.10.1520/E0989-21.
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 ----------------------
E989 − 21
E2179 Test Method for Laboratory Measurement of the Effectiveness of Floor Coverings in Reducing Impact Sound
Transmission Through Concrete Floors
3. Terminology
3.1 The following terms used in this classification are defined in Terminology C634.
decibel sound
impact insulation class
level
octave band
sound insulation
sound pressure
sound pressure level
4. Significance and Use
4.1 The rating increases as the impact sound attenuation of the floor ceiling structure increases. The rating can be used by
architects, builders, and specification and code authorities for acoustical design purposes in building constructions.
4.2 The rating strictly only applies to excitation by the standard tapping machine defined in Test Methods E492 and E1007. It does
not deal with low frequency sounds below 100 Hz that are typically generated below lightweight joist floors when they are walked
on. Nor does it deal with the squeaking, crunching or rattling sounds that can occur in joist construction when elements in the
construction are loose and occupants walk on the floor.
4.3 This classification shall only be used with one-third octave band data.
5. Basis of Classification
5.1 Table 1 lists the sound pressure levels defining the shape of the reference contour, C(f),C(n), for the six
...
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