ASTM D7105/D7105M-06(2019)e1

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:D7105/D7105M −06 (Reapproved 2019)
Standard Test Method for
Determining the Adhesive and Cohesive Strength Between
Materials in Roofing or Waterproofing Membranes and
Systems
This standard is issued under the fixed designation D7105/D7105M; 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.
ε NOTE—Units information was editorially corrected in May 2019.
1. Scope D1079Terminology Relating to Roofing and Waterproofing
1.1 This test method measures the force needed to cause
3. Terminology
separation of the components of a roofing or a waterproofing
membrane system normal (perpendicular) to the plane of the 3.1 Definitions:
3.1.1 See D1079 for definitions of terms used in this test
membrane. The separation may be adhesive at the weakest
method.
bond, or cohesive within the weakest material. If the failure is
cohesive, the adhesive strength is greater than the cohesive
4. Summary of Test Method
strength.
4.1 Thistestmethodsubjectsspecimensfromthelaboratory
1.2 The values stated in either SI units or inch-pound units
prepared or field samples to a force perpendicular to the plane
are to be regarded separately as standard. The values stated in
of the membrane. The test measures:
each system are not necessarily exact equivalents; therefore, to
4.1.1 The cohesive strength of an adhesive layer when
ensure conformance with the standard, each system shall be
separation takes place within the adhesive layer,
used independently of the other, and values from the two
4.1.2 The adhesive strength when the separation takes place
systems shall not be combined.
at an adhered surface, or
1.3 The standard does not purport to address all of the
4.1.3 The cohesive strength of the weakest material when
safety concerns, if any, associated with its use. It is the
the separation takes place within a material other than an
responsibility of the user of this standard to establish appro-
adhesive.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
5. Significance and Use
1.4 This international standard was developed in accor-
5.1 This test method is useful to define the force needed to
dance with internationally recognized principles on standard-
cause separation of the roofing or waterproofing system or
ization established in the Decision on Principles for the
components perpendicular to the plane of the system, and to
Development of International Standards, Guides and Recom-
define the weakest plane in the system.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
6. Apparatus
2. Referenced Documents
6.1 Testing Machine—A universal testing machine with
2.1 ASTM Standards: automaticloadandstrainequipmentandaconstantspeedcross
D312/D312MSpecification for Asphalt Used in Roofing head movement of 0.8 mm/s [2 in./min.] 61%.
6.2 Mounting Clips—The specimen mounting clips (for
small specimens) are 50 mm [2 in.] square perforated galva-
ThistestmethodisunderthejurisdictionofASTMCommitteeD08onRoofing
nized steel, 0.5 mm [0.020 in.] thick, with at least a 75 mm [3
and Waterproofing and is the direct responsibility of Subcommittee D08.20 on
Roofing Membrane Systems.
in.]longsteelpin2.7mm[12gauge]diameter.Thepinshallbe
Current edition approved May 1, 2019. Published June 2019. Originally
fastened to the center of the plate perpendicular to the plane of
approved in 2006. Last previous edition approved in 2013 as D7105 – 06 (2013).
the plate.
DOI: 10.1520/D7105_D7105M-06R19E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.3 Mounting Blocks—The wood or metal specimen blocks
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
(for larger specimens) are 150 mm [6 in.] square and 13 to 32
Standards volume information, refer to the standard’s Document Summary page on
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the ASTM website. mm [ ⁄2 to 1- ⁄4 in.] thick (depending on the force to be
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D7105
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