Standard Test Method for
Tensile-Tear Strength of Bituminous Roofing Membranes1
This standard is issued under the fixed designation D 4073; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the determination of the tensiletear strength of bituminous roofing membranes.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
only.
1.3 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.
2. Referenced Documents
2.1 ASTM Standards:
D 95 Test Method for Water in Petroleum Products and
Bituminous Materials by Distillation2
D 2829 Practice for Sampling and Analysis of Built-Up
Roofs3
D 3617 Practice for Sampling and Analysis of New
Built-Up Roof Membranes3
3. Summary of Test Method
3.1 The tensile-tear strength of a membrane in both longitudinal and transverse directions is determined by measuring
the maximum load when notched specimens of specific dimensions are tested to failure at an arbitrary, fixed, tensile strain
rate.
4. Significance and Use
4.1 Determining the tensile-tear strength of laboratory and
field samples of roofing membranes should be useful in
developing performance criteria, and as one basis for comparison of different materials and systems. The effects of temperature, moisture, and aging may be evaluated by appropriate
selection of field samples or conditioning of laboratory
samples, and tests may be conducted in an environmental
chamber.
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