ASTM D5683/D5683M-95(2011)e1
(Test Method)Standard Test Method for Flexibility of Roofing and Waterproofing Materials and Membranes
Standard Test Method for Flexibility of Roofing and Waterproofing Materials and Membranes
SIGNIFICANCE AND USE
This test method is designed to aid those interested in the engineering properties of roofing and waterproofing sheet materials and membranes.
This test method enables a researcher to measure the relative flexibility of roofing and waterproofing sheet materials and membranes under standard conditions in the laboratory.
The data obtained from this test method will not permit prediction of the service life of a membrane. Membrane flexibility is important during application, and changes in flexibility are believed to be linked to the performance of roofing and waterproofing membranes, but the actual link between test data and performance is unknown and is dependent on the materials and exposure.
SCOPE
1.1 This test method measures the flexibility of roofing or waterproofing sheet materials or membranes by bending the test material over a block containing arcs of specific radii at a standard temperature.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
General Information
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
´1
Designation:D5683/D5683M −95 (Reapproved 2011)
Standard Test Method for
Flexibility of Roofing and Waterproofing Materials and
Membranes
This standard is issued under the fixed designation D5683/D5683M; 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 revised in February 2011.
Section 8, if refrigerated chamber is utilized; however, the plastic bag may
1. Scope
be omitted.
1.1 This test method measures the flexibility of roofing or
waterproofing sheet materials or membranes by bending the
5. Significance and Use
test material over a block containing arcs of specific radii at a
5.1 This test method is designed to aid those interested in
standard temperature.
the engineering properties of roofing and waterproofing sheet
1.2 The values stated in either SI units or inch-pound units
materials and membranes.
are to be regarded separately as standard. The values stated in
5.2 This test method enables a researcher to measure the
each system may not be exact equivalents; therefore, each
relative flexibility of roofing and waterproofing sheet materials
system shall be used independently of the other. Combining
and membranes under standard conditions in the laboratory.
values from the two systems may result in non-conformance
with the standard.
5.3 The data obtained from this test method will not permit
prediction of the service life of a membrane. Membrane
2. Referenced Documents
flexibility is important during application, and changes in
2.1 ASTM Standards:
flexibility are believed to be linked to the performance of
D1079 Terminology Relating to Roofing and Waterproofing
roofing and waterproofing membranes, but the actual link
between test data and performance is unknown and is depen-
3. Terminology
dent on the materials and exposure.
3.1 For definitions of terms used in this test method, refer to
6. Apparatus
Terminology D1079.
6.1 Water Bath—A bath with the capacity of at least 10 L
4. Summary of Test Method
[2.5 gal] and capable of maintaining a temperature of 4.4 6
4.1 Bend the five specimens of roofing or waterproofing
0.1°C [40 6 0.2°F].
sheet materials or membrane, conditioned at 4.4°C [40°F], (see
6.2 Polyethylene Bags—A sealable plastic bag for condi-
Note 1), over a block (see Fig. 1) designed to provide arcs of
tioning each group of test specimens. Commercial 1-gal
1 1
equal length with 6-mm [ ⁄4-in.], 13-mm [ ⁄2-in.], 19-mm
sealable polyethylene scrap or food storage bags can perform
[ ⁄4-in.], and 25-mm [1-in.] radii, and the smallest radius is
this function.
reported where cracking is not observed in any specimen.
6.3 Test Block—The test block (see Fig. 1) may be made
NOTE 1—Other test temperatures may be used in addition to the tests
from any hard durable material that conforms to the dimen-
required at 4.4°C [40°F], and refrigerated conditioning chambers may be
used instead of the water bath specified. Follow procedures outlined in sions shown in Fig. 1. It is designed to provide equal arc
1 1
lengths for arcs with 6-mm [ ⁄4-in.], 13-mm [ ⁄2-in.], 19-mm
[ ⁄4-in.], and 25-mm [1-in.] radii.
This test method is under the jurisdiction ofASTM Committee D08 on Roofing
and Waterproofing and is the direct responsibility of Subcommittee D08.20 on
7. Sampling
Roofing Membrane Systems.
Current edition approved Jan. 1, 2011. Published February 2011. Originally
7.1 This test method requires a total of one 152 by 305-mm
approved in 1995. Last previous edition approved in 2005 as D5683 – 95 (2005).
[6 by 12-in.] sample from the sheet material or membrane.
DOI: 10.1520/D5683-95R11E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.2 Cut five 25 by 152-mm [1 by 6-in.] specimens in the
contact ASTM Customer Service at service@astm.org. Fo
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