ASTM D6343-14

Standard Test Methods for Thin Thermally Conductive Solid Materials for Electrical Insulation and Dielectric Applications

SIGNIFICANCE AND USE
4.1 These test methods are useful to determine compliance of thermally conductive sheet electrical insulation with specification requirements established jointly by a producer and a user.  
4.2 These test methods have been found useful for quality assessment. Results of the test methods can be useful in apparatus design.
SCOPE
1.1 This standard is a compilation of test methods for evaluating properties of thermally conductive electrical insulation sheet materials to be used for dielectric applications.  
1.2 Such materials are thin, compliant sheets, typically produced by mixing thermally conductive particulate fillers with organic or silicone binders. For added physical strength these materials are often reinforced with a woven or nonwoven fabric or a dielectric film.  
1.3 These test methods apply to thermally conductive sheet material ranging from about 0.02 to 6-mm thickness.  
1.4 The values stated in SI units are to be regarded as standard.
Note 1: There is no IEC publication or ISO standard equivalent to this standard.  
1.5 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.  See also 18.1.2 and 19.1.2.

General Information

• Status: Historical
• Publication Date: 31-Oct-2014
• ICS: 29.035.99 - Other insulating materials
• Technical Committee: D09 - Electrical and Electronic Insulating Materials
• Drafting Committee: D09.01 - Electrical Insulating Products

Relations

• Replaces: ASTM D6343-10 - Test Methods for Thin Thermally Conductive Solid Materials for Electrical Insulation and Dielectric Applications
• Effective Date: 01-Nov-2014
• Replaced By: ASTM D6343-14(2018) - Standard Test Methods for Thin Thermally Conductive Solid Materials for Electrical Insulation and Dielectric Applications
• Effective Date: 01-Nov-2018

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D6343 − 14
Standard Test Methods for
Thin Thermally Conductive Solid Materials for Electrical
1
Insulation and Dielectric Applications
This standard is issued under the fixed designation D6343; 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.
1. Scope* D374M Test Methods for Thickness of Solid Electrical
Insulation (Metric)
1.1 This standard is a compilation of test methods for
D412 Test Methods forVulcanized Rubber andThermoplas-
evaluating properties of thermally conductive electrical insu-
tic Elastomers—Tension
lation sheet materials to be used for dielectric applications.
D624 Test Method for Tear Strength of Conventional Vul-
1.2 Such materials are thin, compliant sheets, typically
canized Rubber and Thermoplastic Elastomers
produced by mixing thermally conductive particulate fillers
D792 Test Methods for Density and Specific Gravity (Rela-
with organic or silicone binders. For added physical strength
tive Density) of Plastics by Displacement
these materials are often reinforced with a woven or nonwoven
D883 Terminology Relating to Plastics
fabric or a dielectric film.
D1000 Test Methods for Pressure-Sensitive Adhesive-
1.3 These test methods apply to thermally conductive sheet Coated Tapes Used for Electrical and Electronic Applica-
tions
material ranging from about 0.02 to 6-mm thickness.
D1458 Test Methods for Fully Cured Silicone Rubber-
1.4 The values stated in SI units are to be regarded as
Coated Glass Fabric and Tapes for Electrical Insulation
standard.
D1711 Terminology Relating to Electrical Insulation
NOTE 1—There is no IEC publication or ISO standard equivalent to this
D2240 Test Method for Rubber Property—Durometer Hard-
standard.
ness
1.5 This standard does not purport to address all of the
D5470 Test Method for Thermal Transmission Properties of
safety concerns, if any, associated with its use. It is the
Thermally Conductive Electrical Insulation Materials
responsibility of the user of this standard to establish appro-
D6054 Practice for Conditioning Electrical Insulating Mate-
3
priate safety and health practices and determine the applica-
rials for Testing (Withdrawn 2012)
bility of regulatory limitations prior to use. See also 18.1.2 and
19.1.2.
3. Terminology
3.1 Definitions:
2. Referenced Documents
3.1.1 For definitions of terms used in these test methods and
2
2.1 ASTM Standards:
associated with electrical and electronic insulating materials,
D149 Test Method for Dielectric Breakdown Voltage and
use Terminology D1711.
Dielectric Strength of Solid Electrical Insulating Materials
3.1.2 For definitions of terms used in these test methods and
at Commercial Power Frequencies
associated with plastics, use Terminology D883.
D150 Test Methods forAC Loss Characteristics and Permit-
3.2 Definitions of Terms Specific to This Standard:
tivity (Dielectric Constant) of Solid Electrical Insulation
3.2.1 apparent thermal conductivity, n—thetimerateofheat
D257 Test Methods for DC Resistance or Conductance of
flow, under steady conditions, through unit area, per unit
Insulating Materials
temperature gradient in the direction perpendicular to the area,
for a nonhomogeneous material.
3.2.1.1 See 16.1 for a discussion of the terms thermal
1
These test methods are under the jurisdiction of ASTM Committee D09 on
conductivity and apparent thermal conductivity. To avoid
Electrical and Electronic Insulating Materials and are the direct responsibility of
confusion, these test methods use apparent thermal conductiv-
Subcommittee D09.01 on Electrical Insulating Products.
Current edition approved Nov. 1, 2014. Published November 2014. Originally ity for measurements of homogeneous and nonhomogeneous
approved in 1998. Last previous edition approved in 2010 as D6343 – 10. DOI:
materials.
10.1520/D6343-14.
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
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
*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 ----------------------
D6343 − 14
4. Significance and Use 9. Adhesion Strength
4.1 These test methods are useful to determine compliance 9.1 Significance and Use—Materials covered by this test
of thermally conductive sheet electrical insulation with speci- met
...

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: D6343 − 10 D6343 − 14
Standard Test Methods for
Thin Thermally Conductive Solid Materials for Electrical
1
Insulation and Dielectric Applications
This standard is issued under the fixed designation D6343; 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.
1. Scope Scope*
1.1 This standard is a compilation of test methods for evaluating properties of thermally conductive electrical insulation sheet
materials to be used for dielectric applications.
1.2 Such materials are thin, compliant sheets, typically produced by mixing thermally conductive particulate fillers with organic
or silicone binders. For added physical strength these materials are often reinforced with a woven or nonwoven fabric or a dielectric
film.
1.3 These test methods apply to thermally conductive sheet material ranging from about 0.02 to 6-mm thickness.
1.4 The values stated in SI units are to be regarded as standard.
NOTE 1—There is no IEC publication or ISO standard equivalent to this standard.
1.5 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. See also 18.1.2 and 19.1.2.
2. Referenced Documents
2
2.1 ASTM Standards:
D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at
Commercial Power Frequencies
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D374M Test Methods for Thickness of Solid Electrical Insulation (Metric)
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D883 Terminology Relating to Plastics
D1000 Test Methods for Pressure-Sensitive Adhesive-Coated Tapes Used for Electrical and Electronic Applications
D1458 Test Methods for Fully Cured Silicone Rubber-Coated Glass Fabric and Tapes for Electrical Insulation
D1711 Terminology Relating to Electrical Insulation
D2240 Test Method for Rubber Property—Durometer Hardness
D5470 Test Method for Thermal Transmission Properties of Thermally Conductive Electrical Insulation Materials
3
D6054 Practice for Conditioning Electrical Insulating Materials for Testing (Withdrawn 2012)
3. Terminology
3.1 Definitions:
1
These test methods are under the jurisdiction of ASTM Committee D09 on Electrical and Electronic Insulating Materials and are the direct responsibility of Subcommittee
D09.19 on Dielectric Sheet and Roll Products.
Current edition approved Nov. 1, 2010Nov. 1, 2014. Published December 2010November 2014. Originally approved in 1998. Last previous edition approved in 20042010
as D6343 – 99D6343 – 10.(2004). DOI: 10.1520/D6343-10.10.1520/D6343-14.
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.
3
The last approved version of this historical standard is referenced on www.astm.org.
*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 ----------------------
D6343 − 14
3.1.1 For definitions of terms used in these test methods and associated with electrical and electronic insulating materials, use
Terminology D1711.
3.1.2 For definitions of terms used in these test methods and associated with plastics, use Terminology D883.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 apparent thermal conductivity, n—the time rate of heat flow, under steady conditions, through unit area, per unit
temperature gradient in the direction perpendicular to the area, for a nonhomogeneous material.
3.2.1.1 See 16.1 for a discussion of the terms thermal conductivity and apparent thermal conductivity. To avoid conf
...