ASTM C919-22

Standard Practice for Use of Sealants in Acoustical Applications

SIGNIFICANCE AND USE
4.1 Walls, ceilings, and floors in building construction with improperly sealed joints, voids, or penetrations will not achieve the desired sound transmission loss. Proper sealing of joints, voids, and penetrations will increase sound transmission loss by reducing airborne sound flanking paths.
SCOPE
1.1 This practice provides information for the use of sealants to reduce sound transmission characteristics of interior walls, ceilings, and floors by proper application of sealants to joints, voids, and penetrations normally found in building construction, which are commonly referred to as airborne sound flanking paths.  
1.2 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.  
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.4 This standard does not purport to address fire stopping or safing requirements for joints, voids, and penetrations through fire-rated wall, ceiling, and floor assemblies. Additional requirements may be necessary for fire-rated assemblies to meet the applicable building code provisions.  
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

• Status: Published
• Publication Date: 31-Dec-2021
• ICS: 91.100.50 - Binders. Sealing materials
• ICS: 91.120.20 - Acoustics in building. Sound insulation
• Technical Committee: C24 - Building Seals and Sealants
• Drafting Committee: C24.10 - Specifications, Guides and Practices

Relations

• Refers: ASTM C1520-20 - Standard Guide for Paintability of Latex Sealants
• Effective Date: 01-May-2020
• Refers: ASTM C1642-20 - Standard Practice for Determining Air Leakage Rates of Aerosol Foam Sealants and Other Construction Joint Fill and Insulation Materials
• Effective Date: 01-Aug-2020

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: C919 − 22
Standard Practice for
1
Use of Sealants in Acoustical Applications
This standard is issued under the fixed designation C919; 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 practice provides information for the use of seal-
C717 Terminology of Building Seals and Sealants
ants to reduce sound transmission characteristics of interior
C834 Specification for Latex Sealants
walls, ceilings, and floors by proper application of sealants to
C920 Specification for Elastomeric Joint Sealants
joints, voids, and penetrations normally found in building
C1193 Guide for Use of Joint Sealants
construction, which are commonly referred to as airborne
C1520 Guide for Paintability of Latex Sealants
sound flanking paths.
C1620 Specification for Aerosol Polyurethane and Aerosol
1.2 Thecommitteewithjurisdictionoverthisstandardisnot
Latex Foam Sealants
aware of any comparable standards published by other orga-
C1642 Practice for DeterminingAir Leakage Rates ofAero-
nizations.
sol Foam Sealants and Other Construction Joint Fill and
Insulation Materials
1.3 The values stated in SI units are to be regarded as
standard. The values given in parentheses after SI units are C1852 Guide for Product Selection/Delivery Systems for
Aerosol Foam Sealants and Adhesives
provided for information only and are not considered standard.
E90 Test Method for Laboratory Measurement of Airborne
1.4 This standard does not purport to address fire stopping
Sound Transmission Loss of Building Partitions and
or safing requirements for joints, voids, and penetrations
Elements
through fire-rated wall, ceiling, and floor assemblies. Addi-
E336 Test Method for Measurement of Airborne Sound
tional requirements may be necessary for fire-rated assemblies
Attenuation between Rooms in Buildings
to meet the applicable building code provisions.
E413 Classification for Rating Sound Insulation
1.5 This standard does not purport to address all of the
2.2 US Department of Housing and Urban Development
safety concerns, if any, associated with its use. It is the 3
Standard:
responsibility of the user of this standard to establish appro-
HUD Minimum Property Standards for Housing, Section
priate safety, health, and environmental practices and deter-
4910.1
mine the applicability of regulatory limitations prior to use.
4
2.3 International Building Code:
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3. Terminology
ization established in the Decision on Principles for the
3.1 Definitions—For definitions of terms used in this rec-
Development of International Standards, Guides and Recom-
ommended practice, see Terminologies C717 and C634.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4. Significance and Use
4.1 Walls, ceilings, and floors in building construction with
2. Referenced Documents
improperlysealedjoints,voids,orpenetrationswillnotachieve
2
2.1 ASTM Standards:
the desired sound transmission loss. Proper sealing of joints,
voids, and penetrations will increase sound transmission loss
by reducing airborne sound flanking paths.
1
This practice is under the jurisdiction of ASTM Committee C24 on Building
5. Sound Transmission Class Requirements
Seals and Sealants and is the direct responsibility of Subcommittee C24.10 on
Specifications, Guides and Practices.
5.1 The construction industry has adopted Sound Transmis-
Current edition approved Jan. 1, 2022. Published February 2022. Originally
sionClass(STC)units,asdefinedinTerminologyC634,torate
approved in 1979. Last previous edition approved in 2019 as C919 – 19. DOI:
10.1520/C0919-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Available from Superintendent of Documents, U.S. Government Printing
Standards volume information, refer to the standard’s Document Summary page on Office.
4
the ASTM website. Available from International Code Council (ICC).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C919 − 22
the sound transmission properties of walls, ceilings, and floors.
TheSTCisdeterminedinaccordancewithClassificationE413.
The te
...

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: C919 − 19 C919 − 22
Standard Practice for
1
Use of Sealants in Acoustical Applications
This standard is issued under the fixed designation C919; 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 practice provides information for the use of sealants to reduce sound transmission characteristics of interior walls,
ceilings, and floors by proper application of sealants to joints, voids, and penetrations normally found in building construction,
which are commonly referred to as “flanking paths.”airborne sound flanking paths.
1.2 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for
information only and are not considered standard.
1.4 This standard does not purport to address fire stopping or safing requirements for joints, voids, and penetrations through
fire-rated wall, ceiling, and floor assemblies. Additional requirements may be necessary for fire-rated assemblies to meet the
applicable building code provisions.
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
C717 Terminology of Building Seals and Sealants
C834 Specification for Latex Sealants
C920 Specification for Elastomeric Joint Sealants
C1193 Guide for Use of Joint Sealants
C1520 Guide for Paintability of Latex Sealants
C1620 Specification for Aerosol Polyurethane and Aerosol Latex Foam Sealants
1
This practice is under the jurisdiction of ASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.10 on Specifications,
Guides and Practices.
Current edition approved May 1, 2019Jan. 1, 2022. Published June 2019February 2022. Originally approved in 1979. Last previous edition approved in 20182019 as
C919 – 18.C919 – 19. DOI: 10.1520/C0919-19.10.1520/C0919-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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 ----------------------
C919 − 22
C1642 Practice for Determining Air Leakage Rates of Aerosol Foam Sealants and Other Construction Joint Fill and Insulation
Materials
C1852 Guide for Product Selection/Delivery Systems for Aerosol Foam Sealants and Adhesives
E90 Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
E336 Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings
E413 Classification for Rating Sound Insulation
3
2.2 HUD US Department of Housing and Urban Development Standard:
HUD Minimum Property Standards for Housing, Section 4910.1
4
2.3 IBC Standard:International Building Code:
International Building Code (IBC), Section 1206
3. Terminology
3.1 Definitions—For definitions of terms used in this recommended practice, see Terminologies C717 and C634.
4. Significance and Use
4.1 Walls, ceilings, and floors in building construction, especially those that are of lightweight construction, and that are designed
to reduce or limit sound transmission, can have undesirable sound transmission characteristics if care is not taken to seal
construction with improperly sealed joints, voids, or penetrations will not achieve the desired sound transmission loss. Proper
sealing of joints, voids, and penetrations that typi
...