Standard Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation

SIGNIFICANCE AND USE
This test method provides useful engineering information for evaluating the mechanical behavior of rigid electrical insulation at elevated temperature. When the proper exposure and test temperatures are chosen, depending on the material and end-use operating temperature, use the test method as one means of indicating relative thermal degradation of rigid insulating materials.
SCOPE
1.1 These test methods cover procedures for testing rigid electrical insulation normally manufactured in flat sheet or plate form. They are generally used as terminal boards, spacers, voltage barriers, and circuit boards.
Note 1—For tests applying to vulcanized fibre reference needs to be made to Test Methods D619.  
Note 2—This standard resembles IEC 60893-2, Specification for Rigid Industrial Laminated Sheets Based On Thermosetting Resins for Electrical Purpose, Methods of Tests.  
1.2 The test methods appear in the following sections:
TestSectionsASTM
Test
Method Acetone extractable matter83 to 84D494 Arc resistance47 D495 Ash56 to 60 ... Bonding strength49 to 54... Burning rate and flame resistance61 to 75... Compressive strength25 D695 Conditioning 4 D6054 Dissipation factor34 to 40D669 Dielectric strength28 to 33D149 Expansion (linear thermal)76D696 Flexural properties12 to 24D790 Hardness (Rockwell)55 D785 Insulation resistance and resistivity41 to 46D257 Permittivity34 to 40D150 Resistance to impact26 D256 Tensile properties 7 to 11D638 Thickness 5 to 6D374 Tracking resistance48 D2132 Warp or twist77 to 82... Water absorption27 D570
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This is a fire-test-response standard. See Sections 61 through 75, which are the procedures for burning rate and flame resistance.
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. Specific precautionary statements are given in 31.1 and 1.6.
1.6 This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.
1.7 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.  
17.1 This test method covers the determination of flexural properties at elevated temperature, and as a function of time of exposure to elevated temperature.

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Publication Date
30-Sep-2009
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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: D229 − 09b AnAmerican National Standard
Standard Test Methods for
Rigid Sheet and Plate Materials Used for Electrical
1
Insulation
This standard is issued under the fixed designation D229; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 1.4 This is a fire-test-response standard. See Sections 61
through 75, which are the procedures for burning rate and
1.1 These test methods cover procedures for testing rigid
flame resistance.
electrical insulation normally manufactured in flat sheet or
1.5 This standard does not purport to address all of the
plateform.Theyaregenerallyusedasterminalboards,spacers,
safety concerns, if any, associated with its use. It is the
voltage barriers, and circuit boards.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
NOTE 1—For tests applying to vulcanized fibre reference needs to be
made to Test Methods D619. bility of regulatory limitations prior to use. Specific precau-
NOTE2—ThisstandardresemblesIEC60893-2,SpecificationforRigid
tionary statements are given in 31.1 and 1.6.
IndustrialLaminatedSheetsBasedOnThermosettingResinsforElectrical
1.6 This standard measures and describes the response of
Purpose, Methods of Tests.
materials, products, or assemblies to heat and flame under
controlled conditions, but does not by itself incorporate all
1.2 The test methods appear in the following sections:
factors required for fire hazard or fire risk assessment of the
ASTM
Test materials, products, or assemblies under actual fire conditions.
Test Sections Method
1.7 Fire testing is inherently hazardous. Adequate safe-
Acetone extractable matter 83 to 84 D494
Arc resistance 47 D495
guards for personnel and property shall be employed in
Ash 56 to 60 .
conducting these tests.
Bonding strength 49 to 54 .
Burning rate and flame resistance 61 to 75 .
Compressive strength 25 D695 2. Referenced Documents
Conditioning 4 D6054
2
2.1 ASTM Standards:
Dissipation factor 34 to 40 D669
Dielectric strength 28 to 33 D149
D149Test Method for Dielectric Breakdown Voltage and
Expansion (linear thermal) 76 D696
DielectricStrengthofSolidElectricalInsulatingMaterials
Flexural properties 12 to 24 D790
at Commercial Power Frequencies
Hardness (Rockwell) 55 D785
Insulation resistance and resistivity 41 to 46 D257
D150Test Methods forAC Loss Characteristics and Permit-
Permittivity 34 to 40 D150
tivity (Dielectric Constant) of Solid Electrical Insulation
Resistance to impact 26 D256
D256Test Methods for Determining the Izod Pendulum
Tensile properties 7 to 11 D638
Thickness 5 to 6 D374
Impact Resistance of Plastics
Tracking resistance 48 D2132
D257Test Methods for DC Resistance or Conductance of
Warp or twist 77 to 82 .
Insulating Materials
Water absorption 27 D570
D374Test Methods for Thickness of Solid Electrical Insu-
1.3 Thevaluesstatedininch-poundunitsaretoberegarded
lation
as standard. The values given in parentheses are mathematical
D494Test Method for Acetone Extraction of Phenolic
conversions to SI units that are provided for information only
Molded or Laminated Products
and are not considered standard.
D495Test Method for High-Voltage, Low-Current, DryArc
Resistance of Solid Electrical Insulation
D570Test Method for Water Absorption of Plastics
1
These test methods are under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and are the direct responsibility of
2
Subcommittee D09.07 on Flexible and Rigid Insulating Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2009. Published November 2009. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1925. Last previous edition approved in 2009 as D229–09a. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D0229-09b. the ASTM website.
*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 ----------------------
D229 − 09b
D617Test Method for Punching Quality of Phenolic Lami- 3. Terminology
3
nated Sheets (Withdrawn 2003)
3.1 Definitions—Rigid electrical insulating materials are
D619TestMethodsforVulcanizedFibreUsedforElectrical
defined in these test methods in accordance with Terminology
Insulation
D883. The terminology applied to mate
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:D229–09a Designation:D229–09b
Standard Test Methods for
Rigid Sheet and Plate Materials Used for Electrical
1
Insulation
This standard is issued under the fixed designation D229; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
1.1 These test methods cover procedures for testing rigid electrical insulation normally manufactured in flat sheet or plate form.
They are generally used as terminal boards, spacers, voltage barriers, and circuit boards.
NOTE 1—For tests applying to vulcanized fibre reference needs to be made to Test Methods D619.
NOTE 2—This standard resembles IEC 60893-2, Specification for Rigid Industrial Laminated Sheets Based On Thermosetting Resins for Electrical
Purpose, Methods of Tests.
1.2 The test methods appear in the following sections:
ASTM
Test
Test Sections Method
Acetone extractable matter 83 to 84 D494
Arc resistance 47 D495
Ash 56 to 60 .
Bonding strength 49 to 54 .
Burning rate and flame resistance 61 to 75 .
Compressive strength 25 D695
Conditioning 4 D6054
Dissipation factor 34 to 40 D669
Dielectric strength 28 to 33 D149
Expansion (linear thermal) 76 D696
Flexural properties 12 to 24 D790
Hardness (Rockwell) 55 D785
Insulation resistance and resistivity 41 to 46 D257
Permittivity 34 to 40 D150
Resistance to impact 26 D256
Tensile properties 7 to 11 D638
Thickness 5 to 6 D374
Tracking resistance 48 D2132
Warp or twist 77 to 82 .
Water absorption 27 D570
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 This is a fire-test-response standard. See Sections 61 through 75, which are the procedures for burning rate and flame
resistance.
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. Specific precautionary statements are given in 31.1 and 1.6.
1.6 This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlled
conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products,
or assemblies under actual fire conditions.
1.7 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these
tests.
1
ThesetestmethodsareunderthejurisdictionofASTMCommitteeD09onElectricalandElectronicInsulatingMaterialsandarethedirectresponsibilityofSubcommittee
D09.07 on Flexible and Rigid Insulating Materials.
Current edition approved JuneOct. 1, 2009. Published JulyNovember 2009. Originally approved in 1925. Last previous edition approved in 2009 as D229 – 09a. DOI:
10.1520/D0229-09Ab.
*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 ----------------------
D229–09b
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
D256 Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D374 Test Methods for Thickness of Solid Electrical Insulation
D494 Test Method for Acetone Extraction of Phenolic Molded or Laminated Products
D495 Test Method for High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation
D570 Test Method for Water Absorption of Plastics
D617 Test Method for Punching Quality of Phenolic Laminated Sheets
D619 Test Methods for Vulcanized Fibre Used for Electrical Insulation
D638 Test Method for Tensile Properties of Plastics
D669 Test Method for Dissipation Factor and Permit
...

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