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ASTM D5930-01

(Test Method)

Standard Test Method for Thermal Conductivity of Plastics by Means of a Transient Line-Source Technique

Standard Test Method for Thermal Conductivity of Plastics by Means of a Transient Line-Source Technique

SIGNIFICANCE AND USE
The relative simplicity of the test method makes it applicable for a wide range of materials (4, 5). The technique is capable of fast measurements, making it possible to take data before the materials suffer thermal degradation. Alternatively, it is possible to study the effect of compositional changes such as chemical reaction or aging (6). Short measurement times permit generation of large amounts of data with little effort. The line-source probe and the accompanying test specimen are small in size, making it possible to subject the sample to a wide range of test conditions. Because this test method does not contain a numerical precision and bias statement, it shall not be used as a referee test method in case of dispute.
SCOPE
1.1 This test method covers the determination of the thermal conductivity of plastics over a temperature range from -40 to 400oC. The thermal conductivity of materials in the range from 0.08 to 2.0 W/m.K can be measured covering thermoplastics, thermosets, and rubbers, filled and reinforced.
1.2 The values stated in SI units are to be regarded as 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 and health practices and determine the applicability of regulatory limitations prior to use.
Note 1--There is no current ISO document that duplicates this test method.

General Information

Status
Historical
Publication Date
09-Mar-2001
ICS
83.080.20 - Thermoplastic materials
Technical Committee
D20 - Plastics
Drafting Committee
D20.30 - Thermal Properties
Current Stage
Ref Project

Relations

Replaces
ASTM D5930-97 - Standard Test Method for Thermal Conductivity of Plastics by Means of a Transient Line-Source Technique
Effective Date
10-Mar-2001
Replaced By
ASTM D5930-09 - Standard Test Method for Thermal Conductivity of Plastics by Means of a Transient Line-Source Technique
Effective Date
15-Aug-2009

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ASTM D5930-01 - Standard Test Method for Thermal Conductivity of Plastics by Means of a Transient Line-Source TechniqueASTM D5930-01 - Standard Test Method for Thermal Conductivity of Plastics by Means of a Transient Line-Source Technique
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ASTM D5930-01 - Standard Test Method for Thermal Conductivity of Plastics by Means of a Transient Line-Source Technique
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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:D5930–01
Standard Test Method for
Thermal Conductivity of Plastics by Means of a Transient
1
Line-Source Technique
This standard is issued under the fixed designation D 5930; 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.
6
1. Scope* ASTM Test Methods
E 1225 Test Method for Thermal Conductivity of Solids by
1.1 Thistestmethodcoversthedeterminationofthethermal
Means of the Guarded-Comparative-Longitudinal Heat
conductivity of plastics over a temperature range from – 40 to
6
Flow Technique
400°C.Thethermalconductivityofmaterialsintherangefrom
0.08 to 2.0 W/m.K can be measured covering thermoplastics,
3. Terminology
thermosets, and rubbers, filled and reinforced.
3.1 Definitions—Terminology used in this standard is in
1.2 The values stated in SI units are to be regarded as
accordance with Terminology D 883.
standard.
3.2 Definitions of Terms Specific to This Standard:
1.3 This standard does not purport to address the safety
3.2.1 temperature transient, n—the temperature rise associ-
concerns, if any, associated with its use. It is the responsibility
ated with the perturbation of a system, initially at a uniform
of the user of this standard to establish proper safety and
temperature. The system does not attain thermal equilibrium
health practices and determine the applicability of regulatory
during the transient.
limitations prior to use.
3.2.2 thermal conductivity, n—the time rate of steady heat
NOTE 1—There is no current ISO document that duplicates this test
flow/unit area through unit thickness of a homogeneous mate-
method.
rialinadirectionperpendiculartothesurfaceinducedbyaunit
temperature difference.
2. Referenced Documents
3.2.2.1 Discussion—Where other modes of heat transfer are
2.1 ASTM Standards:
present in addition to conduction, such as convection and
C 177 Test Method for Steady-State Heat Flux Measure-
radiation, this property often is referred to as the apparent
ments and Thermal Transmission Properties by Means of
thermal conductivity, l .
2 app
the Guarded-Hot-Plate Apparatus
3.2.2.2 Discussion—Thermal conductivity must be associ-
C 518 Test Method for Steady-State Heat Flux andThermal
ated with the conditions under which it is measured, such as
Transmission Properties by Means of the Heat Flow Meter
temperature and pressure, as well as the compositional varia-
2
Apparatus
tion of the material. Thermal conductivity may vary with
C 1113 Test Method for Thermal Conductivity of Refracto-
direction and orientation of the specimen since some materials
ries by HotWire (Platinum ResistanceThermometerTech-
are not isotropic with respect to thermal conductivity.
3
nique)
3.2.3 thermal diffusivity—aheat-transportpropertygivenby
4
D 618 Practice for Conditioning Plastics for Testing
the thermal conductivity divided by the thermal mass, which is
4
D 883 Terminology Relating to Plastics
a product of the density and the heat capacity.
5
D 2717 Test Method for Thermal Conductivity of Liquids
3.3 Symbols:
E 177 Practice for Use of the Terms Precision and Bias in
3.3.1 C—Probe constant.
3.3.2 l—Thermal conductivity, W/m.K.
3.3.3 Q—Heat output per unit length, W/m.
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
3.3.4 T —The temperature (K) recorded at time t .
2 2
and is the direct responsibility of Subcommittee D20.30 on Thermal Properties.
3.3.5 T —The temperature (K) recorded at time t .
1 1
Current edition approved March 10, 2001. Published May 2001. Originally
published as D 5930–97. Last previous edition D 5930–97. 3.4 Subscript:
2
Annual Book of ASTM Standards, Vol 04.06.
3
Annual Book of ASTM Standards, Vol 15.01.
4
Annual Book of ASTM Standards, Vol 08.01.
5 6
Annual Book of ASTM Standards, Vol 05.02. Annual Book of ASTM Standards, Vol 14.02.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D5930–01
3.4.1 av—average.
3.4.2 app—apparent.
3.4.3 ref—reference.
4. Summary of Test Method
4.1 Line-Source Technique—This is a transient method for
7
determining thermal conductivity (1, 2). Aline source of heat
is located at the center of the specimen being tested. The
apparatus is at a constant initial temperature. During the course
of the measurement, a known amount of heat produced by the
line-source results in a heat wave propagating radially into the
specimen.The rate of heat propagation is related to the thermal
diffusivity of the polymer. The temperature rise of the
...

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1.1 Under certain conditions of stress, and in the presence of environments such as soaps, wetting agents, oils, or detergents, blow-molded polyethylene containers exhibit mechanical failure by cracking at stresses appreciably below those that would cause cracking in the absence of these environments.  
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1.2.2 Procedure B, Stress-Crack Resistance of a Specific Container to Polyoxyethylated Nonylphenol (CAS 68412-54-4), a Stress-Cracking Agent—The conditions of test described in this procedure are designed for testing containers made from Class 3 polyethylene Specification D4976. Therefore, this procedure is recommended for containers made from Class 3 polyethylene only. This procedure is particularly useful for determining the effect of resin on the stress-crack resistance of the container.  
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1.1 This test method covers the quantitative determination of the volatile matter (including water) present in vinyl chloride resins.  
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