ASTM D6343-10

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

SIGNIFICANCE AND USE
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.
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 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.
1.5 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.

General Information

• Status: Historical
• Publication Date: 31-Oct-2010
• ICS: 29.035.99 - Other insulating materials
• Technical Committee: D09 - Electrical and Electronic Insulating Materials

Relations

• Replaces: ASTM D6343-99(2004) - Test Methods for Thin Thermally Conductive Solid Materials for Electrical Insulation and Dielectric Applications
• Effective Date: 01-Nov-2010
• Replaced By: ASTM D6343-14 - Standard Test Methods for Thin Thermally Conductive Solid Materials for Electrical Insulation and Dielectric Applications
• Effective Date: 01-Nov-2014

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 − 10
StandardTest 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 D257 Test Methods for DC Resistance or Conductance of
Insulating Materials
1.1 This standard is a compilation of test methods for
D374M Test Methods for Thickness of Solid Electrical
evaluating properties of thermally conductive electrical insu-
Insulation (Metric)
lation sheet materials to be used for dielectric applications.
D412 Test Methods forVulcanized Rubber andThermoplas-
1.2 Such materials are thin, compliant sheets, typically
tic Elastomers—Tension
produced by mixing thermally conductive particulate fillers
D624 Test Method for Tear Strength of Conventional Vul-
with organic or silicone binders. For added physical strength
canized Rubber and Thermoplastic Elastomers
these materials are often reinforced with a woven or nonwoven
D792 Test Methods for Density and Specific Gravity (Rela-
fabric or a dielectric film.
tive Density) of Plastics by Displacement
1.3 These test methods apply to thermally conductive sheet D883 Terminology Relating to Plastics
D1000 Test Methods for Pressure-Sensitive Adhesive-
material ranging from about 0.02 to 6-mm thickness.
Coated Tapes Used for Electrical and Electronic Applica-
1.4 The values stated in SI units are to be regarded as
tions
standard.
D1458 Test Methods for Fully Cured Silicone Rubber-
NOTE 1—There is no IEC publication or ISO standard equivalent to this
Coated Glass Fabric and Tapes for Electrical Insulation
standard.
D1711 Terminology Relating to Electrical Insulation
1.5 This standard does not purport to address all of the
D2240 Test Method for Rubber Property—Durometer Hard-
safety concerns, if any, associated with its use. It is the
ness
responsibility of the user of this standard to establish appro-
D5470 Test Method for Thermal Transmission Properties of
priate safety and health practices and determine the applica-
Thermally Conductive Electrical Insulation Materials
bility of regulatory limitations prior to use. See also 18.1.2 and
D6054 Practice for Conditioning Electrical Insulating Mate-
3
19.1.2.
rials for Testing (Withdrawn 2012)
2. Referenced Documents
3. Terminology
2
2.1 ASTM Standards:
3.1 Definitions of Terms Specific to This Standard:
D149 Test Method for Dielectric Breakdown Voltage and
3.1.1 apparent thermal conductivity, n—thetimerateofheat
DielectricStrengthofSolidElectricalInsulatingMaterials
flow, under steady conditions, through unit area, per unit
at Commercial Power Frequencies
temperature gradient in the direction perpendicular to the area,
D150 Test Methods forAC Loss Characteristics and Permit-
for a nonhomogeneous material.
tivity (Dielectric Constant) of Solid Electrical Insulation
3.1.1.1 See 16.1 for a discussion of the terms thermal
conductivity and apparent thermal conductivity. To avoid
1
confusion, these test methods use apparent thermal conductiv-
These test methods are under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and are the direct responsibility of ity for measurements of homogeneous and nonhomogeneous
Subcommittee D09.19 on Dielectric Sheet and Roll Products.
materials.
Current edition approved Nov. 1, 2010. Published December 2010. Originally
3.1.2 See Terminologies D1711 and D883 for definitions of
approved in 1998. Last previous edition approved in 2004 as D6343 – 99(2004).
other terms used in these test methods.
DOI: 10.1520/D6343-10.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D6343 − 10
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- methodareoptionallycoatedwithapressuresensitiveadhesive
fication requirements established jointly by a producer and a on one or both sides. In some cases performance in a particular
user. application can be affected by the adhesion strength.
4.
...

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.
An American National Standard
Designation:D6343–99 (Reapproved 2004) Designation: D6343 – 10
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
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
orsiliconebinders.Foraddedphysicalstrengththesematerialsareoftenreinforcedwithawovenornonwovenfabricoradielectric
film.
1.3 These test methods apply to thermally conductive sheet material ranging from about 0.02 to 6-mm thickness.
1.4 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.
1.5 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.
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 ElastomersTension
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 PropertyDurometer Hardness
D5470 Test Method for Thermal Transmission Properties of Thermally Conductive Electrical Insulation Materials
D6054 Practice for Conditioning Electrical Insulating Materials for Testing
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 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.
3.1.1.1 See16.1foradiscussionoftheterms thermal conductivityand apparent thermal conductivity.Toavoidconfusion,these
test methods use apparent thermal conductivity for measurements of homogeneous and nonhomogeneous materials.
1
ThesetestmethodsareunderthejurisdictionofASTMCommitteeD09onElectricalandElectronicInsulatingMaterialsandarethedirectresponsibilityofSubcommittee
D09.19 on Dielectric Sheet and Roll Products.
Current edition approved March 10, 1999. Published June 1999. Originally approved in 1998. Last previous edition approved in 1998 as D6343–98. DOI:
10.1520/D6343-99R04.
Current edition approved Nov. 1, 2010. Published December 2010. Originally approved in 1998. Last previous edition approved in 2004 as D6343 – 99(2004). DOI:
10.1520/D6343-10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6343 – 10
3.1.2 See Terminologies D1711 and D883 for definitions of other terms used in these test methods.
4. Significance and Use
4.1 These test methods are useful to determine compliance of thermally conductive sheet electrical
...