ASTM D229-19e1
(Test Method)Standard Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation
Standard Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation
SIGNIFICANCE AND USE
18.1 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.
1.2 Use Test Methods D619 (withdrawn) or Specification D710 for tests applying to vulcanized fibre.
1.3 Some of the test methods contained in this standard are similar to those contained in IEC 60893-2, which applies to rigid industrial laminated sheets based on thermosetting resins for electrical purposes.
1.4 The test methods appear in the following sections:
Test
Sections
ASTM
Test
Method
Acetone extractable matter
82 to 83
D494
Arc resistance
47
D495
Ash
56 to 60
...
Bonding strength
49 to 54
...
Flammability methods I and II
61 to 74
...
Coefficient of linear thermal expansion
76
D696
Compressive strength
25
D695
Conditioning
4
D6054
Dissipation factor
34 to 40
D669
Dielectric strength
28 to 33
D149
Expansion (linear thermal)
75
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
76 to 81
...
Water absorption
27
D570
1.5 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.
1.6 This is a fire-test-response standard. See Sections 61 through 74, which are the procedures for assessing ignitability and burning time under specific test conditions
1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 31.1 and 1.8.
1.8 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.
1.9 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.
1.10 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation: D229 − 19
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 U.S. Department of Defense.
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ε NOTE—The title of Table 1 was editorially corrected in August 2019.
1. Scope* conversions to SI units that are provided for information only
and are not considered standard.
1.1 These test methods cover procedures for testing rigid
electrical insulation normally manufactured in flat sheet or 1.6 This is a fire-test-response standard. See Sections 61
plate form. They are generally used as terminal boards, spacers, through 74, which are the procedures for assessing ignitability
voltage barriers, and circuit boards. and burning time under specific test conditions
1.7 This standard does not purport to address all of the
1.2 Use Test Methods D619 (withdrawn) or Specification
safety concerns, if any, associated with its use. It is the
D710 for tests applying to vulcanized fibre.
responsibility of the user of this standard to establish appro-
1.3 Some of the test methods contained in this standard are
priate safety, health, and environmental practices and deter-
similar to those contained in IEC 60893-2, which applies to
mine the applicability of regulatory limitations prior to use.
rigid industrial laminated sheets based on thermosetting resins
Specific precautionary statements are given in 31.1 and 1.8.
for electrical purposes.
1.8 This standard measures and describes the response of
1.4 The test methods appear in the following sections:
materials, products, or assemblies to heat and flame under
ASTM controlled conditions, but does not by itself incorporate all
Test
factors required for fire hazard or fire risk assessment of the
Test Sections Method
materials, products, or assemblies under actual fire conditions.
Acetone extractable matter 82 to 83 D494
Arc resistance 47 D495
1.9 Fire testing is inherently hazardous. Adequate safe-
Ash 56 to 60 .
guards for personnel and property shall be employed in
Bonding strength 49 to 54 .
Flammability methods I and II 61 to 74 .
conducting these tests.
Coefficient of linear thermal expansion 76 D696
Compressive strength 25 D695 1.10 This international standard was developed in accor-
Conditioning 4 D6054
dance with internationally recognized principles on standard-
Dissipation factor 34 to 40 D669
ization established in the Decision on Principles for the
Dielectric strength 28 to 33 D149
Development of International Standards, Guides and Recom-
Expansion (linear thermal) 75 D696
Flexural properties 12 to 24 D790
mendations issued by the World Trade Organization Technical
Hardness (Rockwell) 55 D785
Barriers to Trade (TBT) Committee.
Insulation resistance and resistivity 41 to 46 D257
Permittivity 34 to 40 D150
Resistance to impact 26 D256
2. Referenced Documents
Tensile properties 7 to 11 D638
2
Thickness 5 to 6 D374 2.1 ASTM Standards:
Tracking resistance 48 D2132
D149 Test Method for Dielectric Breakdown Voltage and
Warp or twist 76 to 81 .
Dielectric Strength of Solid Electrical Insulating Materials
Water absorption 27 D570
at Commercial Power Frequencies
1.5 The values stated in inch-pound units are to be regarded
D150 Test Methods for AC Loss Characteristics and Permit-
as standard. The values given in parentheses are mathematical
tivity (Dielectric Constant) of Solid Electrical Insulation
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 Electrical Insulating Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2019. Published March 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1925. Last previous edition approved in 2013 as D229 – 13. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D0229-19E01. 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
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D229 − 19
D256 Test Methods for Determining the Izod
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