ASTM D2305-02

Standard Test Methods for Polymeric Films Used for Electrical Insulation

SIGNIFICANCE AND USE
Many electrical and physical properties of films vary significantly with changes in temperature and humidity. Properties of thin plastic films can change very rapidly; therefore, the specimen should be in the stated conditioning environment when the test is being performed. When the test is performed in a different environment, note these conditions and the time of exposure to this new environment.
SCOPE
1.1 These test methods cover the testing of homogeneous organic polymer films not over 2.4 mm (95 mils) thick that are to be used for electrical insulation.
1.2 These test methods are not necessarily applicable to testing films in combinations with a coating, another film, or with other types of substrate, such as fabrics or papers.
1.3 The values stated in SI units are the standard. The values in parentheses are provided for information only.
1.4 The procedures appear in the following sections:
ProcedureSectionsConditioning 5 and 6 Dielectric Breakdown Voltage Dielectric Strength 20 to 25 Extractables 64 to 69 Heat-Seal Strength 58 to 63 Permittivity and Dissipation Factor 41 to 46 Resistance Method for Measuring the Tendency Corrode Metals37 to 40Sampling 4Shrinkage 47 to 52Strain Relief 12 to 19Surface Resistivity 26 to 30 Tensile Properties11Thickness 7 to 10 Volume Resistivity 31 to 36 Water Absorption 52 to 57
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. For a specific warning statement see 23.1.
Note 1 - These test methods are similar to IEC 60674-2.

General Information

• Status: Historical
• Publication Date: 09-Mar-2002
• ICS: 29.035.20 - Plastics and rubber insulating materials
• Technical Committee: D09 - Electrical and Electronic Insulating Materials
• Drafting Committee: D09.07 - Electrical Insulating Materials

Relations

• Replaces: ASTM D2305-99 - Standard Test Methods for Polymeric Films Used for Electrical Insulation
• Effective Date: 10-Mar-2002
• Replaced By: ASTM D2305-10 - Standard Test Methods for Polymeric Films Used for Electrical Insulation
• Effective Date: 01-Oct-2010
• Referred By: ASTM D5047-17 - Standard Specification for Polyethylene Terephthalate Film and Sheeting
• Effective Date: 10-Mar-2002
• Referred By: ASTM D8065/D8065M-16 - Standard Classification System and Basis for Specification for Specifying Plastic Films
• Effective Date: 10-Mar-2002
• Referred By: ASTM D5213-19 - Standard Specification for Polymeric Resin Film for Electrical Insulation and Dielectric Applications
• Effective Date: 10-Mar-2002

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
An American National Standard
Designation:D2305–02
Standard Test Methods for
1
Polymeric Films Used for Electrical Insulation
This standard is issued under the fixed designation D2305; 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 D149 Test Method for Dielectric Breakdown Voltage and
Dielectric Strength of Solid Electrical Insulating Materials
1.1 These test methods cover the testing of homogeneous
at Commercial Power Frequencies
organic polymer films not over 2.4 mm (95 mils) thick that are
D150 Test Methods for AC Loss Characteristics and Per-
to be used for electrical insulation.
mittivity (Dielectric Constant) of Solid Electrical Insula-
1.2 These test methods are not necessarily applicable to
tion
testing films in combinations with a coating, another film, or
D257 Test Methods for DC Resistance or Conductance of
with other types of substrate, such as fabrics or papers.
Insulating Materials
1.3 ThevaluesstatedinSIunitsarethestandard.Thevalues
D374 Test Methods for Thickness of Solid Electrical Insu-
in parentheses are provided for information only.
lation
1.4 The procedures appear in the following sections:
D570 Test Method for Water Absorption of Plastics
Procedure Sections
D882 Test Method for Tensile Properties of Thin Plastic
Conditioning 5 and 6
Dielectric Breakdown Voltage & Dielectric Strength 20 to 25
Sheeting
Extractables 64 to 69
D883 Terminology Relating to Plastics
Heat-Seal Strength 58 to 63
D1000 Test Methods for Pressure-Sensitive Adhesive-
Permittivity and Dissipation Factor 41 to 46
Resistance Method for Measuring the Tendency to
Coated Tapes Used for Electrical and Electronic Applica-
Corrode Metals 37 to 40
tions
Sampling 4
D1531 Test Methods for Relative Permittivity (Dielectric
Shrinkage 47 to 52
Strain Relief 12 to 19
Constant) and Dissipation Factor by Fluid Displacement
Surface Resistivity 26 to 30
Procedures
Tensile Properties 11
Thickness 7 to 10 D1676 Test Methods for Film-Insulated Magnet Wire
Volume Resistivity 31 to 36
D1711 Terminology Relating to Electrical Insulation
Water Absorption 52 to 57
D5032 Practice for Maintaining Constant Relative Humid-
1.5 This standard does not purport to address all of the
ity by Means of Aqueous Glycerin Solutions
safety concerns, if any, associated with its use. It is the
D6054 Practice for Conditioning Electrical Insulating Ma-
responsibility of the user of this standard to establish appro-
terials for Testing
priate safety and health practices and determine the applica-
E691 Practice for Conducting an Interlaboratory Study to
bility of regulatory limitations prior to use. For a specific
Determine the Precision of a Test Method
warning statement see 23.1.
2.2 IEC Standard:
Publication 60674–2 Specification for Plastic Films for
NOTE 1—These test methods are similar to IEC 60674–2.
3
Electrical Purposes
2. Referenced Documents
3. Terminology
2
2.1 ASTM Standards:
3.1 Definitions:
3.1.1 Definitions are in accordance with Terminologies
1
D1711 and D883 unless otherwise specified.
These test methods are under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and are the direct responsibility of
3.2 Definitions of Terms Specific to This Standard:
Subcommittee D09.07 on Flexible and Rigid Insulating Materials.
3.2.1 sheet, n—material greater than 75 mm in width.
Current edition approved March 10, 2002. Published June 2002. Originally
3.2.2 strain relief, n—relaxation at a specified elevated
published as D2305 – 64 T. Last previous edition D2305 – 99. DOI: 10.1520/
D2305-02. temperature of induced strains.
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 Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
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D2305–02
3.2.3 strip, n—material 75 mm or less in width. than 50 µm (2 mils) and to the nearest 1 µm (0.04 mil) for
specimens 50 µm (2 mils) or more in thickness.
4. Sampling
10. Precision and Bias
4.1 Remove the outer three or more layers down from the
roll or stack of material before sampling.
10.1 Precision—A formal round robin test in accordance
4.2 If the film is known or suspected to be anisotropic for a
with Practice E691 has not been conducted. P
...