ASTM C1374-18

Standard Test Method for Determination of Installed Thickness of Pneumatically Applied Loose-Fill Building Insulation

SIGNIFICANCE AND USE
5.1 This test method was designed to give the manufacturer of loose-fill insulation products a way of determining what the initial installed thickness should be in a horizontal open attic for pneumatic applications.  
5.2 The installed thickness value developed by this test method is intended to provide guidance to the installer in order to achieve a minimum mass/unit area for a given R-value.  
5.3 For the purpose of product design, testing should be done at a variety of R-values. At least three R-values should be used: the lowest R-value on the product label, the highest R-value on the product label, and an R-value near the midpoint of the R-value range.
Note 1: For quality control purposes, testing may be done at one R-value of R-19 (h×ft 2×°F/Btu) or higher.  
5.4 Specimens are blown in a manner consistent with the intended installation procedure. Blowing machine settings should be representative of those typically used for field application with that machine.  
5.5 The material blown for a given R-value as part of the installed thickness test equals the installed mass/unit area times the test chamber area. This mass can be calculated from information provided on the package label at the R-value prescribed.
SCOPE
1.1 This test method covers determination of the installed thickness of pneumatically applied loose-fill building insulations prior to settling by simulating an open attic with horizontal blown applications.  
1.2 This test method is a laboratory procedure for use by manufacturers of loose-fill insulation for product design, label development, and quality control testing. The apparatus used produces installed thickness results at a given mass/unit area.  
1.3 This test method is not the same as the design density procedures described in Test Methods C520 or Specifications C739 or C764.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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: Historical
• Publication Date: 31-Aug-2018
• ICS: 91.100.60 - Thermal and sound insulating materials
• ICS: 91.120.10 - Thermal insulation of buildings
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.32 - Mechanical Properties

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C1374 − 18
Standard Test Method for
Determination of Installed Thickness of Pneumatically
1
Applied Loose-Fill Building Insulation
This standard is issued under the fixed designation C1374; 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 C520 Test Methods for Density of Granular Loose Fill
Insulations
1.1 This test method covers determination of the installed
C739 Specification for Cellulosic Fiber Loose-Fill Thermal
thickness of pneumatically applied loose-fill building insula-
Insulation
tions prior to settling by simulating an open attic with
C764 Specification for Mineral Fiber Loose-Fill Thermal
horizontal blown applications.
Insulation
1.2 This test method is a laboratory procedure for use by
E691 Practice for Conducting an Interlaboratory Study to
manufacturers of loose-fill insulation for product design, label
Determine the Precision of a Test Method
development, and quality control testing. The apparatus used
produces installed thickness results at a given mass/unit area.
3. Terminology
1.3 This test method is not the same as the design density
3.1 Definitions—Unless otherwise stated, the definitions
procedures described in Test Methods C520 or Specifications
listed in Terminology C168 are applicable herein.
C739 or C764.
3.2 Definitions of Terms Specific to This Standard:
1.4 The values stated in inch-pound units are to be regarded
3.2.1 installed thickness, n—the average thickness, as mea-
as standard. The values given in parentheses are mathematical
sured immediately after application of blown insulation mate-
conversions to SI units that are provided for information only
rial when applied at a given mass/unit area.
and are not considered standard.
4. Summary of Test Method
1.5 This standard does not purport to address all of the
2 2
safety concerns, if any, associated with its use. It is the 4.1 A standardized test chamber of 80 ft (7.4 m ) is used as
responsibility of the user of this standard to establish appro- a receptacle to receive a calculated mass/unit area of pneumati-
priate safety, health, and environmental practices and deter-
cally applied insulation.
mine the applicability of regulatory limitations prior to use.
4.2 The mass of insulation to be blown into the test chamber
1.6 This international standard was developed in accor-
is calculated from the bag label information.
dance with internationally recognized principles on standard-
4.3 The mass of insulation prescribed in 4.2 is uniformly
ization established in the Decision on Principles for the
blown into the test chamber.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4.4 The thickness of the blown insulation is determined at
Barriers to Trade (TBT) Committee.
13 predetermined locations.
4.5 The thickness average of three tests is the installed
2. Referenced Documents
thickness for the mass/unit area being tested.
2
2.1 ASTM Standards:
5. Significance and Use
C168 Terminology Relating to Thermal Insulation
5.1 This test method was designed to give the manufacturer
of loose-fill insulation products a way of determining what the
1
This test method is under the jurisdiction of ASTM Committee C16 on Thermal
initial installed thickness should be in a horizontal open attic
Insulation and is the direct responsibility of Subcommittee C16.32 on Mechanical
for pneumatic applications.
Properties.
Current edition approved Sept. 1, 2018. Published September 2018. Originally
5.2 The installed thickness value developed by this test
approved in 1997. Last previous edition approved in 2014 as C1374 – 14. DOI:
method is intended to provide guidance to the installer in order
10.1520/C1374-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or to achieve a minimum mass/unit area for a given R-value.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.3 For the purpose of product design, testing should be
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. done at a variety of R-values. At least three R-values should be
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C1374 − 18
FIG. 1 Installed Thickness Test Chamber
used: the lowest R-value on the product label, the highest
R-value on the product label, and an R-value near the midpoint
of the R-value range.
FIG. 2 Dowel Placement in Chamber Floor
NOTE 1—For quality control purpos
...

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: C1374 − 14 C1374 − 18
Standard Test Method for
Determination of Installed Thickness of Pneumatically
1
Applied Loose-Fill Building Insulation
This standard is issued under the fixed designation C1374; 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 determination of the installed thickness of pneumatically applied loose-fill building insulations prior
to settling by simulating an open attic with horizontal blown applications.
1.2 This test method is a laboratory procedure for use by manufacturers of loose-fill insulation for product design, label
development, and quality control testing. The apparatus used produces installed thickness results at a given mass/unit area.
1.3 This test method is not the same as the design density procedures described in Test Methods C520 or Specifications C739
or C764.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
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 safety, health, and healthenvironmental 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:
C168 Terminology Relating to Thermal Insulation
C520 Test Methods for Density of Granular Loose Fill Insulations
C739 Specification for Cellulosic Fiber Loose-Fill Thermal Insulation
C764 Specification for Mineral Fiber Loose-Fill Thermal Insulation
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Terminology
3.1 Definitions—Unless otherwise stated, the definitions listed in Terminology C168 are applicable herein.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 installed thickness, n—the average thickness, as measured immediately after application of blown insulation material
when applied at a given mass/unit area.
4. Summary of Test Method
2 2
4.1 A standardized test chamber of 80 ft (7.4 m ) is used as a receptacle to receive a calculated mass/unit area of pneumatically
applied insulation.
4.2 The mass of insulation to be blown into the test chamber is calculated from the bag label information.
1
This test method is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.32 on Mechanical
Properties.
Current edition approved April 15, 2014Sept. 1, 2018. Published May 2014September 2018. Originally approved in 1997. Last previous edition approved in 20092014
as C1374–03(2009).C1374 – 14. DOI: 10.1520/C1374-14. 10.1520/C1374-18.
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 ----------------------
C1374 − 18
FIG. 1 Installed Thickness Test Chamber
4.3 The mass of insulation prescribed in 4.2 is uniformly blown into the test chamber.
4.4 The thickness of the blown insulation is determined at 13 predetermined locations.
4.5 The thickness average of three tests is the installed thickness for the mass/unit area being tested.
5. Significance and Use
5.1 This test method was designed to give the manufacturer of loose-fill insulation products a way of determining what the
initial installed thickness should be in a horizontal open attic for pneumatic applications.
5.2 The installed thickness value developed by this test method is intended to provide guidance to the installer in order to
achieve a minimum mass/unit area for a given R-value.
5.3 For
...