ASTM D952-02

Standard Test Method for Bond or Cohesive Strength of Sheet Plastics and Electrical Insulating Materials

SCOPE
1.1 This test method covers the determination of the bond strength or ply adhesion strength of sheet plastic and electrical insulating materials. It is applicable to both laminated and nonlaminated thermoplastic and thermosetting materials.
1.2 Test data obtained by this test method is relevant and appropriate for use in engineering design.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
Note 1—There is no known ISO equivalent to this standard.

General Information

• Status: Historical
• Publication Date: 09-Apr-2002
• ICS: 83.140.10 - Films and sheets
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.10 - Mechanical Properties

Relations

• Replaces: ASTM D952-95 - Standard Test Method for Bond or Cohesive Strength of Sheet Plastics and Electrical Insulating Materials
• Effective Date: 10-Apr-2002
• Replaced By: ASTM D952-10 - Standard Test Method for Bond or Cohesive Strength of Sheet Plastics and Electrical Insulating Materials
• Effective Date: 01-May-2010
• Referred By: ASTM F521-22 - Standard Test Methods for Bond Integrity of Transparent Laminates
• Effective Date: 10-Apr-2002
• Referred By: ASTM D710-19 - Standard Specification for Vulcanized Fibre Sheets, Rolls, Rods, and Tubes Used for Electrical Insulation
• Effective Date: 10-Apr-2002
• Referred By: ASTM D619-21 - Standard Test Methods for Vulcanized Fibre Used for Electrical Insulation
• Effective Date: 10-Apr-2002
• Referred By: ASTM D2093-03(2017) - Standard Practice for Preparation of Surfaces of Plastics Prior to Adhesive Bonding
• Effective Date: 10-Apr-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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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.
Designation:D952–02
Standard Test Method for
Bond or Cohesive Strength of Sheet Plastics and Electrical
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Insulating Materials
This standard is issued under the fixed designation D952; 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.
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1. Scope B1.1 Standard for Unified Screw Threads
1.1 This test method covers the determination of the bond
3. Terminology
strength or ply adhesion strength of sheet plastic and electrical
3.1 Definitions—For definitions of technical terms pertain-
insulating materials. It is applicable to both laminated and
ing to plastics used in this test method, see Terminology D883
nonlaminated thermoplastic and thermosetting materials.
or Terminology D4805.
1.2 Test data obtained by this test method is relevant and
appropriate for use in engineering design.
4. Significance and Use
1.3 The values stated in SI units are to be regarded as the
4.1 This test, when applied to laminated plastics, is a
standard. The values given in parentheses are for information
measureoftheinterlaminarorintralaminarstrength,whichever
only.
is smaller, in a direction normal to the plane of the laminate.
1.4 This standard does not purport to address all of the
When applied to nonlaminated plastics, the test is a measure of
safety concerns, if any, associated with its use. It is the
the cohesive strength of the material. The property determined
responsibility of the user of this standard to establish appro-
is fundamental and has not yet been correlated with the results
priate safety and health practices and determine the applica-
of any other method for bond strength.
bility of regulatory limitations prior to use.
4.2 The test may be found to be useful as (1) a research test
NOTE 1—There is no known ISO equivalent to this standard.
when studying the effects of changes in independent variables,
(2) a specification test, or (3) a referee test.
2. Referenced Documents
4.3 Before proceeding with this test method, reference
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2.1 ASTM Standards:
shouldbemadetothespecificationofthematerialbeingtested.
D618 Practice for Conditioning Plastics for Testing
Any test specimen preparation, conditioning, dimensions or
D883 Terminology Relating to Plastics
testing parameters or combination thereof covered in the
D4000 Classification System for Specifying Plastic Materi-
relevant ASTM materials specification shall take precedence
als
over those in this test method. If there are no relevant ASTM
D4066 Classification System for Nylon Injection and Ex-
material specifications then the default conditions apply. Table
trusion Materials (PA)
1 of Classification System D4000 lists the ASTM materials
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D4805 Terminology for Plastics Standards
standards that currently exist.
E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method 5. Apparatus and Materials
2.2 ANSI Standard:
5.1 Testing Machine—Any suitable tensile testing machine
capable of crosshead movement at a constant rate of 1.3
mm/min. (0.05 in/min.) and of sufficient capacity to exceed the
failure load of the material being tested.
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5.2 Loading Fixtures—The loading fixtures shall be self-
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
and is the direct responsibility of Subcommittee D20.10 on Mechanical Properties.
aligning and shall not apply eccentric loads.
Current edition approved April 10, 2002. Published June 2002. Originally
5.3 Metal Blocks—A pair of 51-mm (2-in.) square metal
published as D952 – 48 T. Last previous edition D952 – 95. DOI: 10.1520/D0952-
blocks each having a maximum height of 51 mm (2 in.). Each
02.
2
block shall be configured to permit attachment to the testing
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
machine’s loading fixture (see Fig. 1).
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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Withdrawn. The last approved version of this historical standard is referenced Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
on www.astm.org. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D952–02
TABLE 1 Precision Data
7. Conditioning
Average Coefficient of Variation
7.1 Conditioning—Condition the test specimens at 23 6
A B
Materials Strength, MPa n Within n Between
r R
2°C(73.4 63.6°F)and50 65 %relativehumidityfornotless
(psi) Laborator
...