ASTM F137-03(2007)
(Test Method)Standard Test Method for Flexibility of Resilient Flooring Materials with Cylindrical Mandrel Apparatus
Standard Test Method for Flexibility of Resilient Flooring Materials with Cylindrical Mandrel Apparatus
SIGNIFICANCE AND USE
Flexibility is that property of a material which allows it to be deformed by bending or rolling without cracking, breaking, or other permanent defects, using whatever force is necessary to bend or roll it. Flexibility is an important characteristic of flooring in that it provides for ease of handling in rolling, cutting, and fitting.
SCOPE
1.1 This test method covers the determination of the flexibility of resilient flooring materials by means of cylindrical mandrel apparatus. It is especially applicable to sheet goods and some tiles.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are for information only.
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 to determine the applicability of regulatory limitations prior to use.
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation:F137–03 (Reapproved 2007)
Standard Test Method for
Flexibility of Resilient Flooring Materials with Cylindrical
Mandrel Apparatus
This standard is issued under the fixed designation F 137; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope mm) increasing in increments of 0.5 in. (12.7 mm). The
contacting faces of the rods shall be a minimum of 2.5 in. (63.5
1.1 This test method covers the determination of the flex-
mm) in length.
ibility of resilient flooring materials by means of cylindrical
4.2 Stand or Other Device, to firmly support the mandrel in
mandrel apparatus. It is especially applicable to sheet goods
a horizontal position during the test.
and some tiles.
4.3 ConditioningArea,capableofmaintaining73.4 61.8°F
1.2 The values stated in inch-pound units are to be regarded
(23 6 1°C) and 50 6 5 % relative humidity.
as standard. The values given in parentheses are for informa-
4.4 Die, Knife, or Similar Instrument to prepare test speci-
tion only.
mens with uniform smooth edges.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Test Specimen
responsibility of the user of this standard to establish appro-
5.1 The test specimens shall consist of a portion of the
priate safety and health practices and to determine the
material 2 6 0.05 in. (50 6 1.27 mm) wide and at least 9 in.
applicability of regulatory limitations prior to use.
(225 mm) long.
2. Referenced Documents 5.2 Use a die, knife, or other similar instrument to prepare
the specimen and to produce uniform smooth edges. Do not
2.1 ASTM Standards:
test specimens with nicked or fractured edges.
E 691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
6. Conditioning
3. Significance and Use 6.1 Condition the test specimens for at least 24 h at 73.4 6
1.8°F (23 6 1°C) and 50 6 5 % relative humidity, and test in
3.1 Flexibility is that property of a material which allows it
the same environment.Alternatively, testing may be performed
to be deformed by bending or rolling without cracking,
at room temperature in an uncontrolled environment if carried
breaking, or other permanent defects, using whatever force is
out within 5 min.
necessary to bend or roll it. Flexibility is an important
6.2 Specimens shall be conditioned on a flat surface. If
characteristic of flooring in that it provides for ease of handling
necessary, they can be weighted to remove all curvature.
in rolling, cutting, and fitting.
7. Procedure
4. Apparatus
7.1 Intheactualflexingofthespecimen,placethespecimen
4.1 Flexibility Test Equipment, consisting of mandrels, that
over a mandrel with the wearing surface face out and the major
is, cylindrical rods with circular cross sections having outside
axis of the specimen perpendicular to the major axis of the
diameters of 0.25 in. (6.4 mm) and 0.50 to 5 in. (12.7 to 127
mandrel.
7.2 Bend the material around the mandrel at a uniform rate
ThistestmethodisunderthejurisdictionofASTMCommitteeF06onResilient
through a 180° angle while holding the specimen at each end.
Floor Coverings and is the direct responsibility of Subcommittee F06.20 on Test
Take3to5sto complete the bend. Maintain a good contact
Methods - Products Construction/Materials.
between specimen and mandrel.
Current edition approved Oct. 1, 2007. Published October 2007. Originally
approved in 1971. Last previous edition approved in 2003 as F 137–03.
7.3 Examine the specimen face visually in the bent position
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
for breaks, cracks, or other damage at the completion of the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
bendingoperation.Whenrequiredbythedetailedspecification,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F137–03 (2007)
TABLE 1 Precision Data
straighten the specimen at the same rate at which it was bent
and examine the back for the same faults.
NOTE 1—MaterialsAand B passed at the smallest mandrel with 100 %
7.4 When a mandrel of particular diameter has been speci-
agreement in test results.
fied, as for a purchase specification, use that mandrel. A B C D E
Materials Average Sr SR r R
7.5 Determine the smallest mandrel around which the ma-
Material A 0.25000 0.00000 0.00000 0.00000 0.00000
terial may be bent without showing breaks, cracks, or other
Material B 0.25000 0.00000 0.00000 0.00000 0.00000
Material C 1.13889 0.05893 0.20750 0.16499 0.58100
damage.Todothis,estimatethesizeofthemandreloverwhich
Material D 0.41667 0.00000 0.12910 0.00000 0.36148
the specimen will not break. Then use a series of mandrels,
Material E 0.90278 0.10206 0.27344 0.28577 0.76563
each one consecutively smaller than the first, until breaks or
Material F 1.250000 0/13176 0.26960 0.36893 0.7
...
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