ASTM E1222-22
(Test Method)Standard Test Method for Laboratory Measurement of the Insertion Loss of Pipe Lagging Systems
Standard Test Method for Laboratory Measurement of the Insertion Loss of Pipe Lagging Systems
SIGNIFICANCE AND USE
5.1 The insertion loss of a pipe lagging system depends upon the lagging system materials, the method used to apply the materials, the pipe wall thickness, the size and shape of the bare and lagged pipe, and the mechanisms causing noise radiation from the pipe. Insertion losses measured using this test method should be used with some caution. In the laboratory, measurements must be made under reproducible conditions, but in practical usage in the field, the conditions that determine the effective insertion loss are difficult to predict and they may lead to slightly different results. Insertion losses measured with this test method can be used successfully for acoustical design purposes. Insertion losses measured with this test method are most useful for pipes and lagging systems which are similar to those used in the laboratory configuration.
5.2 This test method may be used to rank-order pipe lagging systems according to insertion loss or to estimate the field insertion loss of pipe lagging systems installed in the field.
5.3 This test method assumes that pipe wall stresses resulting from different methods of supporting the test pipe in the laboratory do not have a significant effect upon the measured insertion loss.
5.4 Pipe lagging systems typically have small insertion loss, and sometimes negative insertion loss, at frequencies below 500 Hz. The results obtained at frequencies below 500 Hz may be somewhat erratic. Sound sources used with this test method normally have a low frequency limit in the range from 300 to 500 Hz. For these reasons, the lowest band of frequencies for which results are required is centered at 500 Hz.
SCOPE
1.1 This test method covers the measurement of the insertion loss of pipe lagging systems under laboratory conditions.
1.2 A procedure for accrediting a laboratory for purposes of this test method is given in Annex A1.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only and are not considered standard.
1.4 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.
1.5 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.
General Information
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Standards Content (Sample)
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: E1222 − 22
Standard Test Method for
Laboratory Measurement of the Insertion Loss of Pipe
1
Lagging Systems
This standard is issued under the fixed designation E1222; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
3
1. Scope ratory Competence (Withdrawn 2002)
2.2 ANSI Standards:
1.1 This test method covers the measurement of the inser-
4
S1.4Specification for Sound Level Meters
tion loss of pipe lagging systems under laboratory conditions.
S1.6Preferred Frequencies and Band Numbers forAcousti-
4
1.2 Aprocedure for accrediting a laboratory for purposes of
cal Measurements
this test method is given in Annex A1.
S1.11Specification for Octave Band and Fractional-Octave-
4
Band Analog and Digital Filters
1.3 The values stated in SI units are to be regarded as
standard. The values given in parentheses are provided for
3. Terminology
information only and are not considered standard.
3.1 Definitions—Terms used in this standard are defined
1.4 This standard does not purport to address all of the
either in Terminology C634 or within this standard. The
safety concerns, if any, associated with its use. It is the
definition of terms explicitly given within this standard take
responsibility of the user of this standard to establish appro-
precedence over definitions given in Terminology C634. The
priate safety, health, and environmental practices and deter-
definitions within Terminology C634 and this standard take
mine the applicability of regulatory limitations prior to use.
precedenceoveranyotherdefinitionsofdefinedtermsfoundin
1.5 This international standard was developed in accor-
any other documents, including other documents referenced in
dance with internationally recognized principles on standard-
this standard.
ization established in the Decision on Principles for the
3.2 Definitions of Terms Specific to This Standard:
Development of International Standards, Guides and Recom-
3.2.1 pipe lagging system, n—an arrangement of noise
mendations issued by the World Trade Organization Technical
insulating materials used to cover a pipe to reduce noise
Barriers to Trade (TBT) Committee.
radiating from it.
2. Referenced Documents
4. Summary of Test Method
2
2.1 ASTM Standards:
4.1 Noise is produced inside a steel pipe located within a
C423TestMethodforSoundAbsorptionandSoundAbsorp-
reverberation room using band-limited white noise as a test
tion Coefficients by the Reverberation Room Method
signal. The noise must be produced by a loudspeaker or
C634Terminology Relating to Building and Environmental
acoustic driver located at one end of the pipe. Average sound
Acoustics
pressurelevelsaremeasuredwithinthereverberationroomfor
E90Test Method for Laboratory Measurement of Airborne
two conditions, one with sound radiating from the bare pipe
Sound Transmission Loss of Building Partitions and
and the other with the same pipe covered with a lagging
Elements
system. The insertion loss of the lagging system is the
E548Guide for General Criteria Used for Evaluating Labo-
difference in the sound pressure levels measured with sound
radiatingfromthebareandlaggedpipe,withanadjustmentfor
changes in room absorption due to the presence of the lagging
1
ThistestmethodisunderthejurisdictionofASTMCommitteeE33onBuilding system.Theresultsmaybeobtainedinaseriesof100-Hzwide
and Environmental Acoustics and is the direct responsibility of Subcommittee
bandsorinone-thirdoctavebandsfrom500to5000Hz.Using
E33.08 on Mechanical and Electrical System Noise.
100-Hzwidebandswillimprovethesignal-to-noiseratiointhe
Current edition approved Nov. 1, 2022. Published November 2022. Originally
approved in 1990. Last previous edition approved in 2016 as E1222 – 90 (2016).
DOI: 10.1520/E1222-22.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or The last approved version of this historical standard is referenced on
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM www.astm.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E1222 − 22
reverberant room. This is frequently necessary when measur- 7.1.2 Diffu
...
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: E1222 − 90 (Reapproved 2016) E1222 − 22
Standard Test Method for
Laboratory Measurement of the Insertion Loss of Pipe
1
Lagging Systems
This standard is issued under the fixed designation E1222; 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 test method covers the measurement of the insertion loss of pipe lagging systems under laboratory conditions.
1.2 A procedure for accrediting a laboratory for purposes of this test method is given in Annex A1.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only
and are not considered standard.
1.4 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
C423 Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
C634 Terminology Relating to Building and Environmental Acoustics
E90 Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
3
E548 Guide for General Criteria Used for Evaluating Laboratory Competence (Withdrawn 2002)
2.2 ANSI Standards:
4
S1.4 Specification for Sound Level Meters
4
S1.6 Preferred Frequencies and Band Numbers for Acoustical Measurements
4
S1.11 Specification for Octave Band and Fractional-Octave-Band Analog and Digital Filters
3. Terminology
3.1 Definitions—The acoustical terms used in this test method are consistent with Terminology C634.
1
This test method is under the jurisdiction of ASTM Committee E33 on Building and Environmental Acoustics and is the direct responsibility of Subcommittee E33.08
on Mechanical and Electrical System Noise.
Current edition approved Oct. 1, 2016Nov. 1, 2022. Published October 2016November 2022. Originally approved in 1990. Last previous edition approved in 20092016
as E1222 – 90 (2009).(2016). DOI: 10.1520/E1222-90R16.10.1520/E1222-22.
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.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E1222 − 22
3.1 Definitions—Terms used in this standard are defined either in Terminology C634 or within this standard. The definition of
terms explicitly given within this standard take precedence over definitions given in Terminology C634. The definitions within
Terminology C634 and this standard take precedence over any other definitions of defined terms found in any other documents,
including other documents referenced in this standard.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 pipe lagging system—system, n—an arrangement of noise insulating materials used to cover a pipe to reduce noise radiating
from it.
4. Summary of Test Method
4.1 Noise is produced inside a steel pipe located within a reverberation room using band-limited white noise as a test signal. The
noise must be produced by a loudspeaker or acoustic driver located at one end of the pipe. Average sound pressure levels are
measured within the reverberation room for two conditions, one with sound radiating from the bare pipe and the other with the
same pipe covered with a lagging system. The insertion loss of the lagging system is the difference in the sound pressure levels
measured w
...
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