ASTM E1952-01

Standard Test Method for Thermal Conductivity and Thermal Diffusivity by Modulated Temperature Differential Scanning Calorimetry

SCOPE
1.1 This test method covers the determination of thermal conductivity of homogeneous, non-porous solid materials in the range of 0.10 to 1.0 W/(K*m) by modulated temperature differential scanning calorimeter. This range includes many polymeric, glass, and ceramic materials. Thermal diffusivity, which is elated to thermal conductivity through specific heat capacity and density, may also be derived. Thermal conductivity and diffusivity can be determined at one or more temperatures over the range of 0 to 90°C.  
1.2 Electronic instrumentation or automated data analysis and reduction systems or treatments equivalent to this test method may be used.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.  
1.4  This standard does not purport to address all of the safety problems, 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-Aug-2001
• ICS: 17.200.10 - Heat. Calorimetry
• Technical Committee: E37 - Thermal Measurements
• Drafting Committee: E37.10 - Fundamental, Statistical and Mechanical Properties

Relations

• Replaces: ASTM E1952-98 - Standard Test Method for Thermal Conductivity and Thermal Diffusivity by Modulated Temperature Differential Scanning Calorimetry
• Effective Date: 10-Aug-2001
• Replaced By: ASTM E1952-06 - Standard Test Method for Thermal Conductivity and Thermal Diffusivity by Modulated Temperature Differential Scanning Calorimetry
• Effective Date: 01-Dec-2006
• Referred By: ASTM E1231-19 - Standard Practice for Calculation of Hazard Potential Figures of Merit for Thermally Unstable Materials
• Effective Date: 10-Aug-2001

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E 1952 – 01
Standard Test Method for
Thermal Conductivity and Thermal Diffusivity by Modulated
1
Temperature Differential Scanning Calorimetry
This standard is issued under the fixed designation E 1952; 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.
1. Scope E 968 Practice for Heat Flow Calibration of Differential
2
Scanning Calorimeters
1.1 This test method covers the determination of thermal
E 1142 Terminology Relating to Thermophysical Proper-
determination of thermal conductivity of homogeneous, non-
2
ties
porous solid materials in the range of 0.10 to 1.0W/(K • m) by
E 1231 Practice for Calculation of Hazard Potential
modulated temperature differential scanning calorimeter. This
2
Figures-of-Merit for Thermally Unstable Materials
range includes many polymeric, glass, and ceramic materials.
Thermal diffusivity, which is related to thermal conductivity
3. Terminology
throughspecificheatcapacityanddensity,mayalsobederived.
3.1 Definitions:
Thermal conductivity and diffusivity can be determined at one
3.1.1 Specific technical terms used in this document are
or more temperatures over the range of 0 to 90 °C.
defined in Terminologies E 473 and E 1142.
1.2 Electronic instrumentation or automated data analysis
3.2 Definitions of Terms Specific to This Standard:
and reduction systems or treatments equivalent to this test
3.2.1 modulated temperature differential scanning
method may be used.
calorimeter—a version of differential scanning calorimetry
1.3 The values stated in SI units are to be regarded as the
thatprovidesasinusoidallyvaryingtemperatureprogramtothe
standard. The values given in parentheses are provided for
test specimen in addition to the traditional isothermal or
information purposes only.
temperature ramp programs. Results from analysis shall in-
1.4 This standard does not purport to address all of the
clude apparent and specific heat capacity.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Summary of Test Method
priate safety and health practices and determine the applica-
4.1 The heat capacity of a test specimen may be determined
bility of regulatory limitations prior to use.
using the modulated temperature approach in which an oscil-
latory or periodically repeating temperature program (around
2. Referenced Documents
an average temperature) is imposed upon a test specimen
2.1 ASTM Standards:
2 producing an oscillatory (periodic) heat flow into or out of the
E 473 Terminology Relating to Thermal Analysis
specimen. The heat capacity of the test specimen may be
E 967 Practice for Temperature Calibration of Differential
obtained from the amplitude of the resultant heat flow divided
Scanning Calorimeters and Differential Thermal Analyz-
2 by the amplitude of the oscillatory (periodic) temperature that
ers
produces it. Specific heat capacity is obtained by normalizing
the heat capacity to specimen mass.
4.1.1 The accuracy of the heat capacity thus obtained
1
This test method is under the jurisdiction of Committee E37 on Thermal
depends upon experimental conditions. When a thin test
Measurements and is the direct responsibility of Subcommittee E37.01 on Test
specimen encapsulated in a specimen pan of high thermal
Methods and Recommended Practices.
conductivity is treated with temperature oscillations of long
Current edition approved August 10, 2001. Published October 2001. Originally
published as E 1952 – 98. Last previous edition E 1952 – 98. period (low frequency), the test specimen is assumed to
The process described in this test method is covered by a patent (Marcus, S. M.
achieve a uniform temperature distribution and the resultant
and Reading, M., U. S. Patent 5 335 993, 1994) held by TA Instruments, Inc., 109
heat capacity information will be comparable with those of
Lukens Drive, New Castle DE 19720. Interested parties are invited to submit
other non-oscillatory test methods.
information regarding the identification of acceptable alternatives to this patented
method to the Committee on Standards, ASTM Headquarters, 100 Barr Harbor
4.1.2 When one end of a thick test specimen is exposed to
Drive, West Conshohocken PA 19428-2959. Your comments will receive careful
the temperature oscillations of short period (high frequency),
considerations at a meeting of the responsible technical committee which you may
the test specimen will achieve a temperature distribution over
attend.
2
Annual Book of ASTM Standards, Vol 14.02. its length related to its thermal diffusivity.
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