ASTM C367/C367M-09
(Test Method)Standard Test Methods for Strength Properties of Prefabricated Architectural Acoustical Tile or Lay-In Ceiling Panels
Standard Test Methods for Strength Properties of Prefabricated Architectural Acoustical Tile or Lay-In Ceiling Panels
SIGNIFICANCE AND USE
Knowledge of hardness is useful in the development and the quality control of acoustical tile and lay-in ceiling panels. Deviation from an established hardness range will assist in pointing out processing errors or defective raw materials, thereby aiding the maintenance of uniform product quality.
This property is also useful in comparing the relative abilities of materials to resist indentations on the panel surface caused by impacts.
Since the hardness varies with the thickness, only samples of the same thickness may be directly compared.
SCOPE
1.1 These test methods cover the determination of the strength properties of prefabricated architectural acoustical tile or lay-in ceiling panels as follows:
1.2 Not all of the tests described in these test methods may be necessary to evaluate any particular product for a specific use. In each instance, it will be necessary to determine which properties are required.
1.3 These test methods specify procedures that may be used in product development, manufacturing control, specification acceptance, and service evaluation.
1.4 Properties determined by these test methods reflect the performance of the materials under the specific conditions of the test, and do not necessarily indicate performance under conditions other than those specified herein.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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.
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Designation: C367/C367M − 09
StandardTest Methods for
Strength Properties of Prefabricated Architectural
1
Acoustical Tile or Lay-In Ceiling Panels
This standard is issued under the fixed designation C367/C367M; 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.
INTRODUCTION
Materials used for absorbing sound generally have a porous, low-density structure. In comparison
with many building materials they may be relatively fragile. Materials are available that possess
adequate strength and stability and at the same time provide good sound absorption.The test methods
described here cover procedures for evaluating those physical properties related to strength. The
methods are of use in developing, manufacturing, and selecting acoustical tile or lay-in panels.
It should be kept in mind that a property related to strength is only one of several considerations
important in judging the usefulness of an acoustical material. For example, a material judged to be
quite weak by one of these tests may still be desired for other reasons, and with adequate precautions,
may be shipped and installed successfully.
1. Scope system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
1.1 These test methods cover the determination of the
with the standard.
strength properties of prefabricated architectural acoustical tile
1.6 This standard does not purport to address all of the
or lay-in ceiling panels as follows:
safety concerns, if any, associated with its use. It is the
Tests Sections
Hardness 4 to 9 responsibility of the user of this standard to establish appro-
Friability 10 to 16
priate safety and health practices and determine the applica-
Sag 17 to 23
bility of regulatory limitations prior to use.
Transverse strength 24 to 30
1.2 Not all of the tests described in these test methods may
2. Referenced Documents
be necessary to evaluate any particular product for a specific
2
2.1 ASTM Standards
use. In each instance, it will be necessary to determine which
properties are required. C634Terminology Relating to Building and Environmental
Acoustics
1.3 These test methods specify procedures that may be used
in product development, manufacturing control, specification
3. Terminology
acceptance, and service evaluation.
3.1 Terms defined in Terminology C634.
1.4 Properties determined by these test methods reflect the
3.1.1 acoustical material
performance of the materials under the specific conditions of
3.1.2 sound absorption
the test, and do not necessarily indicate performance under
3.2 Definitions of Terms Specific to This Standard:
conditions other than those specified herein.
3.2.1 fissures—irregular depressions of varying lengths
1.5 The values stated in either SI units or inch-pound units
widths, and depths extending below the basic product face.
are to be regarded separately as standard. The values stated in
3.2.2 friable—easily crumbled.
each system may not be exact equivalents; therefore, each
3.2.3 sag—deviation of the acoustical tile or panel at its
geometric center from the plane formed by the edges.
1
These test methods are under the jurisdiction of ASTM Committee E33 on
Building and EnvironmentalAcoustics and are the direct responsibility of Subcom-
2
mittee E33.04 on Application of Acoustical Materials and Systems. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 15, 2009. Published January 2010. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1955. Last previous edition approved in 1999 as C367–99. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0367-09. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C367/C367M − 09
HARDNESS 9.1.3 Statement describing whether the finished or unfin-
ishedsurfacewastestedandwhetherthefaceorthebackofthe
4. Significance and Use
specimen was tested,
9.1.4 Average thickness for the five specimens, in. or [mm],
4.1 Knowledgeofhardnessisusefulinthedevelopmentand
9.1.5 Individual thicknesses for each of the five specimens,
the quality control of acoustical tile and lay-in ceiling panels.
in. or [mm],
Deviation from an established hardness range will assist in
9.1.6 Average hardness for the five specimens, lbf or [N],
pointing out processing errors or defective raw materials,
and
thereby aiding the maintenance of uniform product quality.
9.1.7 Individual ha
...
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:C367–05 Designation: C367/C367M – 09
Standard Test Methods for
Strength Properties of Prefabricated Architectural
1
Acoustical Tile or Lay-In Ceiling Panels
This standard is issued under the fixed designation C367/C367M; 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.
INTRODUCTION
Materials used for absorbing sound generally have a porous, low-density structure. In comparison
with many building materials they may be relatively fragile. Materials are available that possess
adequate strength and stability and at the same time provide good sound absorption. The test methods
described here cover procedures for evaluating those physical properties related to strength. The
methods are of use in developing, manufacturing, and selecting acoustical tile or lay-in panels.
It should be kept in mind that a property related to strength is only one of several considerations
important in judging the usefulness of an acoustical material. For example, a material judged to be
quite weak by one of these tests may still be desired for other reasons, and with adequate precautions,
may be shipped and installed successfully.
1. Scope
1.1 These test methods cover the determination of the strength properties of prefabricated architectural acoustical tile or lay-in
ceiling panels as follows:
Tests Sections
Hardness 4to9
Friability 10 to 16
Sag 17 to 23
Transverse strength 24 to 30
1.2 Not all of the tests described in these test methods may be necessary to evaluate any particular product for a specific use.
In each instance, it will be necessary to determine which properties are required.
1.3 These test methods specify procedures that may be used in product development, manufacturing control, specification
acceptance, and service evaluation.
1.4 Properties determined by these test methods reflect the performance of the materials under the specific conditions of the test,
and do not necessarily indicate performance under conditions other than those specified herein.
1.5
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
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.
2. Referenced Documents
2
2.1 ASTM Standards:ASTM Standards
C634 Terminology Relating to Building and Environmental Acoustics
1
These test methods are under the jurisdiction ofASTM Committee E-33E33 on Building and EnvironmentalAcoustics and are the direct responsibility of Subcommittee
E33.04 on Application of Acoustical Materials and Systems.
Current edition approved Oct. 1, 2005.15, 2009. Published October 2005.January 2010. Originally approved in 1955. Last previous edition approved in 1999 as C367 – 99.
DOI: 10.1520/C0367-059.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 ----------------------
C367/C367M – 09
3. Terminology
3.1 Terms defined in Terminology C634.
3.1.1 acoustical material
3.1.2 sound absorption
3.2 Definitions of Terms Specific to this Standard:
3.2.1 fissures—irregular depressions of varying lengths widths, and depths extending below the basic product face.
3.2.2 friable—easily crumbled.
3.2.3 sag—deviation of the acoustical tile or panel at its geometric center from the plane formed by the edges.
HARDNESS
4. Significance and Use
4.1 Knowledge of hardness is useful in the development and the quality control of acoustical tile and lay-in ceiling panels.
Deviationfromanestablishedhardnessrangewillassistinpointingoutprocessingerrorsordefectiverawmaterials,therebyaiding
the maintenance of uniform product quality.
4.2 This prope
...
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