ASTM C167-18

Standard Test Methods for Thickness and Density of Blanket or Batt Thermal Insulations

SIGNIFICANCE AND USE
4.1 Proper measurements of thickness and density of blanket or batt insulations are essential for determining thermal insulation properties. For a particular batt or blanket product, thickness and density are usually directly related to thermal insulating value.  
4.2 These test methods are of significant value in manufacturing quality control, to ensure that claimed insulation values of products are maintained.
SCOPE
1.1 These test methods cover the determination of thickness and density of flexible, felted, or woven thermal insulating blankets, rolls, or batts composed of fibrous materials, with or without surface covering or reinforcement.  
1.2 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.  
1.3 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.  
1.4 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-Oct-2018
• ICS: 91.100.60 - Thermal and sound insulating materials
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C167 − 18
Standard Test Methods for
Thickness and Density of Blanket or Batt Thermal
1
Insulations
This standard is issued under the fixed designation C167; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 4. Significance and Use
1.1 These test methods cover the determination of thickness
4.1 Proper measurements of thickness and density of blan-
and density of flexible, felted, or woven thermal insulating ket or batt insulations are essential for determining thermal
blankets, rolls, or batts composed of fibrous materials, with or insulation properties. For a particular batt or blanket product,
without surface covering or reinforcement. thickness and density are usually directly related to thermal
insulating value.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical 4.2 These test methods are of significant value in manufac-
conversions to SI units that are provided for information only turing quality control, to ensure that claimed insulation values
and are not considered standard. of products are maintained.
1.3 This standard does not purport to address all of the
5. Apparatus
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.1 Depth Gauge,ofthetypeshowninFig.1.Thediskshall
priate safety, health, and environmental practices and deter-
be fabricated of a suitable plastic material. The disk shall have
mine the applicability of regulatory limitations prior to use.
a mass of 9.3 6 0.3 grams and shall exert a pressure of 0.4
2
1.4 This international standard was developed in accor-
lbf/ft (20 Pa). The disk shall be 3-in. 6 0.08-in. (76 mm 6
dance with internationally recognized principles on standard-
2mm) in diameter. The disk shall be perpendicular to the pin at
ization established in the Decision on Principles for the
all times and shall have a friction device or thumb grip to
Development of International Standards, Guides and Recom-
secure the pin unless purposely moved. The pin shall be made
1
mendations issued by the World Trade Organization Technical
at a maximum ⁄8-in. (3 mm) diameter. The pin shall be of
Barriers to Trade (TBT) Committee.
sufficient length for the material to be measured.
5.2 Steel rule, graduated in 0.05-in. or 1-mm intervals.
2. Referenced Documents
2
5.3 Scales, of sufficient capacity and sensitivity to weigh the
2.1 ASTM Standards:
test specimen to an accuracy of 60.5 %.
C168 Terminology Relating to Thermal Insulation
3. Terminology
6. Sampling
3.1 Definitions—Terminology C168 shall be considered as
6.1 A test sample shall consist of one representative roll or
applicable to the terms used in these test methods.
package of insulation.
3.2 Definitions of Terms Specific to This Standard:
6.2 Sampling of Packages—For packages which contain 20
3.2.1 package—an individually wrapped group or bag of
or more batts, five batts shall be selected. For packages which
batts or a single roll of thermal insulation material.
contain less than 20 batts, either the three-batt or five-batt
selection technique may be used. Batts which are folded in half
1
These test methods are under the jurisdiction of ASTM Committee C16 on shall count as two batts for purposes of choosing and employ-
Thermal Insulation and are the direct responsibility of Subcommittee C16.32 on
ing the selection method.
Mechanical Properties.
6.2.1 Three-Batt Method—Select the center batt and the
Current edition approved Nov. 1, 2018. Published November 2018. Originally
second batt in from each end of the package.
approved in 1941. Last previous edition approved in 2015 as C167 – 15. DOI:
10.1520/C0167-18.
6.2.2 Five-Batt Method—Divide the package sequentially
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
into five groups of batts as equal in number as possible. Select
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
the first batt from each group. Be careful to select one and only
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. one batt from the two end batts within the package.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C167 − 18
FIG. 1 Depth Gauge for Thickness Measurements
6.2.3 Cut batts which are longer than 48 in. to 48 6 0.25 in. insulation produ
...

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: C167 − 15 C167 − 18
Standard Test Methods for
Thickness and Density of Blanket or Batt Thermal
1
Insulations
This standard is issued under the fixed designation C167; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 These test methods cover the determination of thickness and density of flexible, felted, or woven thermal insulating blankets,
rolls, or batts composed of fibrous materials, with or without surface covering or reinforcement.
1.2 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.
1.3 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.
1.4 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
3. Terminology
3.1 Definitions—Terminology C168 shall be considered as applicable to the terms used in these test methods.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 package—an individually wrapped group or bag of batts or a single roll of thermal insulation material.
4. Significance and Use
4.1 Proper measurements of thickness and density of blanket or batt insulations are essential for determining thermal insulation
properties. For a particular batt or blanket product, thickness and density are usually directly related to thermal insulating value.
4.2 These test methods are of significant value in manufacturing quality control, to ensure that claimed insulation values of
products are maintained.
5. Apparatus
5.1 Depth Gauge, of the type shown in Fig. 1. The disk shall be fabricated of a suitable plastic material. The disk shall have
2
a mass of 9.3 6 0.3 grams and shall exert a pressure of 0.4 lbf/ft (20 Pa). The disk shall be 3-in. 6 0.08-in. (76 mm 6 2mm)
in diameter. The disk shall be perpendicular to the pin at all times and shall have a friction device or thumb grip to secure the pin
1
unless purposely moved. The pin shall be made at a maximum ⁄8-in. (3 mm) diameter. The pin shall be of sufficient length for
the material to be measured.
5.2 Steel rule, graduated in 0.05-in. or 1-mm intervals.
1
These test methods are under the jurisdiction of ASTM Committee C16 on Thermal Insulation and are the direct responsibility of Subcommittee C16.32 on Mechanical
Properties.
Current edition approved Sept. 1, 2015Nov. 1, 2018. Published October 2015November 2018. Originally approved in 1941. Last previous edition approved in 20092015
as C167 – 09.C167 – 15. DOI: 10.1520/C0167-15.10.1520/C0167-18.
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 ----------------------
C167 − 18
FIG. 1 Depth Gauge for Thickness Measurements
5.3 Scales, of sufficient capacity and sensitivity to weigh the test specimen to an accuracy of 60.5 %.
6. Sampling
6.1 A test sample shall consist of one representative roll or package of insulation.
6.2 Sampling of Packages—For packages which contain 20 or more batts, five batts shall be selected. For packages which
contain less than 20 batts, either the three-batt or five-batt selection technique may be used. Batts which are folded in half shall
count as two batts for purposes of choosing and employing the selection method.
6.2.1 Three-Batt Method—Select the center batt and the second
...