ASTM D952-15

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

SIGNIFICANCE AND USE
4.1 This test, when applied to laminated plastics, is a measure of the interlaminar or intralaminar strength, whichever is smaller, in a direction normal to the plane of the laminate. When applied to nonlaminated plastics, the test is a measure of the cohesive strength of the material. The property determined is fundamental and has not yet been correlated with the results of any other method for bond strength.  
4.2 The test is potentially useful as (1) a research test when studying the effects of changes in independent variables, (2) a specification test, or (3) a referee test.  
4.3 Before proceeding with this test method, make reference to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions or testing parameters or combination thereof covered in the relevant ASTM materials specification shall take precedence over those in this test method. If there are no relevant ASTM material specifications then the default conditions apply. Table 1 of Classification System D4000 lists the ASTM materials standards that currently exist. (A) νr  is the within-laboratories standard deviation of the mean, expressed as a percentage of the listed average.(B) νR  is the between-laboratories standard deviation of the mean, expressed as a percentage of the listed average.
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: 30-Nov-2015
• ICS: 83.140.10 - Films and sheets
• Technical Committee: D09 - Electrical and Electronic Insulating Materials
• Drafting Committee: D09.07 - Electrical Insulating Materials

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 − 15
Standard Test Method for
Bond or Cohesive Strength of Sheet Plastics and Electrical
1
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.
1. Scope* D6988 GuideforDeterminationofThicknessofPlasticFilm
Test Specimens
1.1 This test method covers the determination of the bond
E691 Practice for Conducting an Interlaboratory Study to
strength or ply adhesion strength of sheet plastic and electrical
Determine the Precision of a Test Method
insulating materials. It is applicable to both laminated and
2.2 ANSI Standard:
nonlaminated thermoplastic and thermosetting materials.
3
B1.1 Standard for Unified Screw Threads
1.2 Test data obtained by this test method is relevant and
appropriate for use in engineering design.
3. Terminology
1.3 The values stated in SI units are to be regarded as the
3.1 Definitions—For definitions of technical terms pertain-
standard. The values given in parentheses are for information
ing to plastics used in this test method, see Terminology D883.
only.
1.4 This standard does not purport to address all of the
4. Significance and Use
safety concerns, if any, associated with its use. It is the
4.1 This test, when applied to laminated plastics, is a
responsibility of the user of this standard to establish appro-
measureoftheinterlaminarorintralaminarstrength,whichever
priate safety, health, and environmental practices and deter-
is smaller, in a direction normal to the plane of the laminate.
mine the applicability of regulatory limitations prior to use.
When applied to nonlaminated plastics, the test is a measure of
NOTE 1—There is no known ISO equivalent to this standard.
the cohesive strength of the material. The property determined
1.5 This international standard was developed in accor- is fundamental and has not yet been correlated with the results
dance with internationally recognized principles on standard- of any other method for bond strength.
ization established in the Decision on Principles for the
4.2 The test is potentially useful as (1) a research test when
Development of International Standards, Guides and Recom-
studying the effects of changes in independent variables, (2)a
mendations issued by the World Trade Organization Technical
specification test, or (3) a referee test.
Barriers to Trade (TBT) Committee.
4.3 Beforeproceedingwiththistestmethod,makereference
to the specification of the material being tested. Any test
2. Referenced Documents
specimen preparation, conditioning, dimensions or testing
2
2.1 ASTM Standards:
parameters or combination thereof covered in the relevant
D618 Practice for Conditioning Plastics for Testing
ASTM materials specification shall take precedence over those
D883 Terminology Relating to Plastics
in this test method. If there are no relevant ASTM material
D4000 Classification System for Specifying Plastic Materi-
specifications then the default conditions apply. Table 1 of
als
Classification System D4000 lists the ASTM materials stan-
D5947 Test Methods for Physical Dimensions of Solid
dards that currently exist.
Plastics Specimens
5. Apparatus and Materials
1
This test method is under the jurisdiction of ASTM Committee D09 on
5.1 Testing Machine—Any suitable tensile testing machine
Electrical and Electronic Insulating Materials and is the direct responsibility of
capable of crosshead movement at a constant rate of 1.3
Subcommittee D09.07 on Electrical Insulating Materials.
mm/min. (0.05 in/min.) and of sufficient capacity to exceed the
Current edition approved Dec. 1, 2015. Published January 2016. Originally
failure load of the material being tested.
approved in 1948. Last previous edition approved in 2010 as D952 – 10.
DOI:10.1520/D0952-15.
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 from American National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
*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

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D952 − 15
TABLE 1 Precision Data
the material. Opposite surfaces need to be as parallel as
Average Coefficient of Variation possible to prevent eccentric loading of the material.
A B
Materials Strength, MPa
...

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.
Designation: D952 − 10 D952 − 15
Standard Test Method for
Bond or Cohesive Strength of Sheet Plastics and Electrical
1
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.
1. 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
D883 Terminology Relating to Plastics
D4000 Classification System for Specifying Plastic Materials
D4805D5947 Terminology for Plastics StandardsTest Methods for Physical Dimensions of Solid Plastics Specimens (Withdrawn
2002)
D6988 Guide for Determination of Thickness of Plastic Film Test Specimens
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
2.2 ANSI Standard:
3
B1.1 Standard for Unified Screw Threads
3. Terminology
3.1 Definitions—For definitions of technical terms pertaining to plastics used in this test method, see Terminology D883 or
Terminology D4805.
4. Significance and Use
4.1 This test, when applied to laminated plastics, is a measure of the interlaminar or intralaminar strength, whichever is smaller,
in a direction normal to the plane of the laminate. When applied to nonlaminated plastics, the test is a measure of the cohesive
strength of the material. The property determined is fundamental and has not yet been correlated with the results of any other
method for bond strength.
4.2 The test may be found to be is potentially useful as (1) a research test when studying the effects of changes in independent
variables, (2) a specification test, or (3) a referee test.
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.10 on Mechanical Properties.
Current edition approved May 1, 2010Dec. 1, 2015. Published June 2010January 2016. Originally approved in 1948. Last previous edition approved in 20022010 as
D952 – 02.D952 – 10. DOI:10.1520/D0952-10.DOI:10.1520/D0952-15.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*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 ----------------------
D952 − 15
4.3 Before proceeding with this test method, reference should be made make reference to the specification of the material being
tested. Any test specimen preparation, conditioning, dimensions or testing parameters or combination thereof covered in the
relevant ASTM materials specification shall take precedence over those in this test method. If there are no relevant ASTM material
specifications then the default conditions apply. Table 1 of Classification System D4000 lists the ASTM materials standards that
currently exist.
5. Apparatus and Materials
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.
5.2 Loading Fixtures—The loading fixtures shall be self-aligning and shall not apply eccentric loads.
5.3 Metal Bl
...