ASTM C167-98(2003)

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

SIGNIFICANCE AND USE
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.
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 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.

General Information

• Status: Historical
• Publication Date: 09-Apr-2003
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.32 - Mechanical Properties

Relations

• Replaces: ASTM C167-98 - Standard Test Methods for Thickness and Density of Blanket or Batt Thermal Insulations
• Effective Date: 10-Apr-2003
• Replaced By: ASTM C167-09 - Standard Test Methods for Thickness and Density of Blanket or Batt Thermal Insulations
• Effective Date: 01-Apr-2009
• Referred By: ASTM C411-19 - Standard Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation
• Effective Date: 10-Apr-2003
• Referred By: ASTM C1497-16 - Standard Specification for Cellulosic Fiber Stabilized Thermal Insulation
• Effective Date: 10-Apr-2003
• Referred By: ASTM C1373/C1373M-11(2017) - Standard Practice for Determination of Thermal Resistance of Attic Insulation Systems Under Simulated Winter Conditions
• Effective Date: 10-Apr-2003
• Referred By: ASTM C447-15(2022) - Standard Practice for Estimating the Maximum Use Temperature of Thermal Insulations
• Effective Date: 10-Apr-2003
• Referred By: ASTM C687-18 - Standard Practice for Determination of Thermal Resistance of Loose-Fill Building Insulation
• Effective Date: 10-Apr-2003
• Referred By: ASTM E970-17e1 - Standard Test Method for Critical Radiant Flux of Exposed Attic Floor Insulation Using a Radiant Heat Energy Source
• Effective Date: 10-Apr-2003
• Referred By: ASTM C1071-19 - Standard Specification for Fibrous Glass Duct Lining Insulation (Thermal and Sound Absorbing Material)
• Effective Date: 10-Apr-2003
• Referred By: ASTM C1774-13(2019) - Standard Guide for Thermal Performance Testing of Cryogenic Insulation Systems
• Effective Date: 10-Apr-2003
• Referred By: ASTM C800-19 - Standard Specification for Fibrous Glass Blanket Insulation (Aircraft Type)
• Effective Date: 10-Apr-2003
• Referred By: ASTM C1696-20 - Standard Guide for Industrial Thermal Insulation Systems
• Effective Date: 10-Apr-2003
• Referred By: ASTM C991-23 - Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings
• Effective Date: 10-Apr-2003
• Referred By: ASTM C165-23 - Standard Test Method for Measuring Compressive Properties of Thermal Insulations
• Effective Date: 10-Apr-2003
• Referred By: ASTM C592-22a - Standard Specification for Mineral Fiber Blanket Insulation and Blanket-Type Pipe Insulation (Metal-Mesh Covered) (Industrial Type)
• Effective Date: 10-Apr-2003

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:C167–98 (Reapproved 2003)
Standard Test Methods for
Thickness and Density of Blanket or Batt Thermal
Insulations
This standard is issued under the fixed designation C 167; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the 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 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 appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
C 168 Terminology Relating to Thermal Insulation
3. Terminology
3.1 Definitions—Terminology C 168 shall be considered as
applicable to the terms used in these test methods.
4. Significance and Use
4.1 Proper measurements of thickness and density of blan-
ket or batt insulations are essential for determining thermal
insulation properties. For a particular batt or blanket product,
FIG. 1 Depth Gage for Thickness Measurements
thickness and density are usually directly related to thermal
insulating value.
4.2 These test methods are of significant value in manufac-
a friction device to grip the pin unless purposely moved. The
turing quality control, to ensure that claimed insulation values pin shall be of sufficient length for the material to be measured.
of products are maintained.
5.2 Steel rule, graduated in 0.05-in. or 1-mm intervals.
5.3 Scales, of sufficient capacity and sensitivity to weigh the
5. Apparatus
test specimen to an accuracy of 60.5 %.
5.1 Depth Gage, of the type shown in Fig. 1. The disk shall
6. Sampling
be fabricated of a suitable clear plastic material, so that the
operator can see when contact is made with the insulation. The
6.1 A test sample shall consist of one representative roll or
disk shall be perpendicular to the pin at all times and shall have bundle of insulation.
6.2 Sampling of Bundles—For bundles which contain 20
or more batts, five batts shall be selected. Otherwise, either the
three-batt or five-batt selection technique may be used. Batts
These test methods are under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and are the direct responsibility of Subcommittee C16.32 on
which are folded in half shall count as two batts for purposes
Mechanical Properties.
of choosing and employing the selection method.
Current edition approved April 10, 2003. Published July 2003. Originally
6.2.1 Three-Batt Method—Select the center batt and the
approved in 1941. Last previous edition approved in 1998 as C 167 – 98.
Annual Book of ASTM Standards, Vol 04.06. second batt in from each end of the package.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C167–98 (2003)
6.2.2 Five-Batt Method—Divide the package sequentially
into five groups of batts as equal in number as possible. Select
the first batt from each group. Be careful to select one and only
one batt from the two end batts within the package.
6.2.3 Cut batts which are longer than 48 in. to 48 6 0.25 in.
(122 6 0.63 cm) in length.
6.3 Sampling of Cut Rolls—Five batts will be cut of
roll-width by 48 6 0.25 in. (122 6 0.63 cm) in length.
6.3.1 Cut one batt from the center of the roll, two batts from
the ends of the roll, and the fourth and fifth from the quarter
points along the length.
6.3.2 For blankets wider than 24 in., cut each of the five
batts 24 6 0.25 in. (61 6 0.63 cm) wide by 48 6 0.25 in. (122
6 0.63 cm) long.
6.4 Sampling for Full Roll Method—This method can be
used in place of 6.3 when the roll is wider than 24 in. (61 cm)
or longer than 50 ft (16.4 m). Prior to unrolling the material,
weigh the entire roll to the nearest 0.25 pound (0.11 kg). Two
methods may be used to obtain the full roll weight. The first
method removes the insulation product from the packaging
prior to weighing. The material will expand and may unroll
FIG. 2 Thickness Measurement Locations
slightly, care must be taken to ensure that the full roll is
weighed accurately. The second method weighs the packaged
the partially pulled roll to the end of the testing space, and
insulation product, then weighs the packaging material only.
continue to pull the material over itself.
The packaging material weight is subtracted from packaged
product weight to obtain net material weight.
NOTE 3—Use 7.1 if sampling procedure in 6.3 is used.
7.3 Measurement of Bundles and Cut Roll—Insertthepinof
7. Procedure
the thickness gage vertically into the material at the first
7.1 Expansion of Bundles and Cut Roll—Hold the first batt
measuring point with a twisting motion until it contacts the
vertically off the floor by grasping it with both hands on its
hard surface beneath. Lower the disk until it lightly and
long dimension so that the lower edge is 18 6 1 in. (460 6 25
uniformlycontactsthespecimen.Analternativeprocedureisto
mm) above the floor. Release the batt, allowing it to strike the
use a disk whose mass exerts a specified pressure of at least 0.4
floor. Repeat the above for a second time. Next, holding the
lbf/ft (20 Pa) on the specimen. With the gage disk locked
batt by the other long edge, drop twice as above. Place the
against the pin, lift the gage unit from the test specimen. While
specimen on a flat, hard surface. Repeat the above for the
holding the gage in locked position, place the disk against the
remaining four specimens. Allow specimens to reach equilib-
zero end of the rule with the pin projecting along the calibrated
rium by waiting at least 5 min before making thickness
surface of the rule. Observe and record the reading at the
measurements within 1 in. (25 mm) in any direction of five
pointed end of the pin to the nearest 0.05 in. (1 mm). Repeat
points as indicated in Fig. 2.
the above for each of the remaining measuring points as shown
NOTE 1—If 23-in. (580-mm) wide samples are tested, use a quarter or in Fig. 2.
half of that dimension to establish the test points.
7.4 Measurement of Full Roll—Record the roll length to the
NOTE 2—Some materials may require4hor more to reach equilibrium.
nearest 1 in. (2.54) cm. Take measurements on each side of the
7.2 Expansion of Full Roll—Unroll the insulation. Flip the roll. If the roll has been cut in half, take a third roll length
test roll over its entire length so the bottom surface is now on measurement along the midpoint of the roll width. Record roll
top. Next grasp one end and pull the material over itself until width at three locations to the nearest 0.125 in. (0.32 cm).
the original surface is again facing up. If there is insufficient Width measurements will be taken 10 ft (3.05 m) from each
room to pull the material over itself (less than twice the end, and in the middle of the roll length. Using a pin gauge,
unrolled length), the material may be repositioned by sliding recordthicknesstothenearest0.05in.(1mm)asshowninFig.
FIG. 3 Thickness Measurement Locations – Full Roll
C167–98 (2003)
3. Refer to Section 7.3 for use of pin gauge.Two 15 ft (4.57 m) 10.2 Thickness of Bundles—An interlaboratory comparison
long sections shall be measured. These sections shall be 10 of six participating laboratories was conducted in 1991 on
(3.05 m) in from each end. A total of twenty thickness fibrous glass insulat
...