ASTM C653-97(2002)

Standard Guide for Determination of the Thermal Resistance of Low-Density Blanket-Type Mineral Fiber Insulation

SCOPE
1.1 This guide describes the calculation and interpolation of a thermal resistance value for low-density blanket-type insulation material at a particular density and thickness having been selected as representative of the product. It requires measured values of this average density and thickness, as well as apparent thermal conductivity values determined by either Test Method C 177, C 518, or C 1114.
1.2 This guide applies to a density range for mineral-fiber material of roughly 6.4 to 48 kg/m3  (0.4 to 3.0 lb/ft3). It is primarily intended to apply to low-density, mineral-fiber mass insulation batts and blankets, exclusive of any membrane facings. Apparent thermal conductivity data for these products are commonly reported at a mean temperature of 23.9°C (75°F) and a hot-to-cold plate temperature difference of 27.8°C (50°F) or 22.2°C (40°F).
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Feb-1997
• ICS: 91.120.99 - Other standards related to protection of and in buildings
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.30 - Thermal Measurement

Relations

• Replaces: ASTM C653-97 - Standard Guide for Determination of the Thermal Resistance of Low-Density Blanket-Type Mineral Fiber Insulation
• Effective Date: 10-Feb-1997
• Replaced By: ASTM C653-97(2007) - Standard Guide for Determination of the Thermal Resistance of Low-Density Blanket-Type Mineral Fiber Insulation
• Effective Date: 01-Mar-2007
• Referred By: ASTM C991-23 - Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings
• Effective Date: 10-Feb-1997
• Referred By: ASTM C1058/C1058M-10(2023) - Standard Practice for Selecting Temperatures for Evaluating and Reporting Thermal Properties of Thermal Insulation
• Effective Date: 10-Feb-1997
• Referred By: ASTM C687-18 - Standard Practice for Determination of Thermal Resistance of Loose-Fill Building Insulation
• Effective Date: 10-Feb-1997
• Referred By: ASTM C665-23 - Standard Specification for Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing
• Effective Date: 10-Feb-1997

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:C653–97 (Reapproved 2002)
Standard Guide for
Determination of the Thermal Resistance of Low-Density
1
Blanket-Type Mineral Fiber Insulation
This standard is issued under the fixed designation C653; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 Thisguidedescribesthecalculationandinterpolationof 3.1 Definitions—For definitions used in this guide, refer to
a thermal resistance value for low-density blanket-type insula- Terminology C168.
tion material at a particular density and thickness having been 3.2 Definitions of Terms Specific to This Standard:
selected as representative of the product. It requires measured 3.2.1 apparent thermal conductivity, l—the ratio of the
values of this average density and thickness, as well as specimen thickness to thermal resistance of the specimen. It is
apparentthermalconductivityvaluesdeterminedbyeitherTest calculated as follows:
Method C177, C518, or C1114.
2
l5 L/R ~W/m·k!or ~Btu·in./ft ·h·F! (1)
1.2 This guide applies to a density range for mineral-fiber
3 3
material of roughly 6.4 to 48 kg/m (0.4 to 3.0 lb/ft ). It is
3.2.1.1 Discussion—For this type of material an expression
primarily intended to apply to low-density, mineral-fiber mass
for the apparent thermal conductivity as a function of density
insulation batts and blankets, exclusive of any membrane
is:
facings.Apparent thermal conductivity data for these products
l5 a 1 bD 1 c/D (2)
arecommonlyreportedatameantemperatureof23.9°C(75°F)
andahot-to-coldplatetemperaturedifferenceof27.8°C(50°F)
where a, b, c =parameters characteristic of a product, and related to
or 22.2°C (40°F).
the conductivity of the gas, the conductivity of the solid and the
3
1.3 This standard does not purport to address all of the conductivity due to radiation.
safety concerns, if any, associated with its use. It is the
3.3 Symbols:
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
2 2
R = thermal resistance, (m K/W) or (h·ft F/Btu)
bility of regulatory limitations prior to use.
l = apparent thermal conductivity, (W/m·K) or (Btu·in/
2
2. Referenced Documents
h·ft F)
2 2
Q/A = heat flow per unit area, (W/m ) or (Btu/h·ft )
2.1 ASTM Standards:
3 3
D = bulk density of a specimen, (kg/m ) or (lb/ft )
C167 Test Methods for Thickness and Density of Blanket
2 L = measured specimen thickness, (m) or (in.)
or Batt Thermal Insulations
2 T = apparatus plate temperature, (K) or (F)
C168 Terminology Relating to Thermal Insulation
L8 = specimen thickness if the sample from which the
C177 Test Method for Steady-State Heat Flux Measure-
specimen is selected does not recover to label
ments and Thermal Transmission Properties by Means of
thickness, (m) or (in.)
2
the Guarded-Hot-Plate Apparatus
s = estimate of the standard deviation for a set of data
C518 Test Method for Steady-State Thermal Transmission
points
2
Properties by Means of the Heat Flow Meter Apparatus
D = apparatus systematic error
C 1045 Practice for Calculating Thermal Transmission
C = overall uncertainty in a measured R-value
2
Properties from Steady-State Conditions
3.3.1 Subscripts:
C 1114 TestMethodforSteady-StateThermalTransmission
2
Properties by Means of the Thin-Heater Apparatus
= signifies average of a lot
av
= refers to hot surface
H
1
This guide is under the jurisdiction of ASTM Committee C16 on Thermal
Insulation and is the direct responsibility of Subcommittee C16.30 on Thermal
Measurement.
3
Current edition approved Feb. 10, 1997. Published June 1997. Originally Rennex, Brian G., “Thermal Parameters as a Function of Thickness for
published as C653–70. Last previous edition C653–92. Combined Radiation and Conduction for Low-Density Insulation,” Journal of
2
Annual Book of ASTM Standards, Vol 04.06. Thermal Insulation, July 1979.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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C653–97 (2002)
density, D . Density is determined by using Test Method
= refers to cold surface
av
C
C167; take care to avoid the use of damaged material.
= refers to test specimen
T
5.2 In order to account for the variation in l-value due to
= refers to nominal property for the product, as shown
N
on the product label product density variability, measure a minimum of three “l
= refers to a set of data points versus D” data points on three different samples. This repre-
i
= refers to a particular specimen
sentsninedatapointsforthe“lversusD”curve.Again,this“l
s
versus D” curv
...