ASTM F137-08(2013)
(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
4.1 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 mathematical conversions to SI units that are provided for information only and are not considered standard.
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 to determine the applicability of regulatory limitations prior to use.
General Information
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 − 08 (Reapproved 2013)
Standard Test Method for
Flexibility of Resilient Flooring Materials with Cylindrical
Mandrel Apparatus
ThisstandardisissuedunderthefixeddesignationF137;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 5. Apparatus
1.1 This test method covers the determination of the flex- 5.1 Flexibility Test Equipment, consisting of mandrels, that
ibility of resilient flooring materials by means of cylindrical is, cylindrical rods with circular cross sections having outside
mandrel apparatus. It is especially applicable to sheet goods diameters of 0.25 in. (6.4 mm) and 0.50 to 5 in. (12.7 to 127
and some tiles. 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
1.2 The values stated in inch-pound units are to be regarded
mm) in length.
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only 5.2 Stand or Other Device, to firmly support the mandrel in
and are not considered standard. a horizontal position during the test.
1.3 This standard does not purport to address all of the
5.3 ConditioningArea,capableofmaintaining73.4 61.8°F
safety concerns, if any, associated with its use. It is the
(23 6 1°C) and 50 6 5 % relative humidity.
responsibility of the user of this standard to establish appro-
5.4 Die, Knife, or Similar Instrument to prepare test speci-
priate safety and health practices and to determine the
mens with uniform smooth edges.
applicability of regulatory limitations prior to use.
6. Test Specimen
2. Referenced Documents
6.1 The test specimens shall consist of a portion of the
2.1 ASTM Standards:
material 2 6 0.05 in. (50 6 1.27 mm) wide and at least 9 in.
E691 Practice for Conducting an Interlaboratory Study to
(225 mm) long.
Determine the Precision of a Test Method
F141 Terminology Relating to Resilient Floor Coverings
6.2 Use a die, knife, or other similar instrument to prepare
the specimen and to produce uniform smooth edges. Do not
3. Terminology
test specimens with nicked or fractured edges.
3.1 For definitions, refer to Terminology F141.
7. Conditioning
4. Significance and Use
7.1 Condition the test specimens for at least 24 h at 73.4 6
4.1 Flexibility is that property of a material which allows it
1.8°F (23 6 1°C) and 50 6 5 % relative humidity, and test in
to be deformed by bending or rolling without cracking,
the same environment.Alternatively, testing may be performed
breaking, or other permanent defects, using whatever force is
at room temperature in an uncontrolled environment if carried
necessary to bend or roll it. Flexibility is an important
out within 5 min.
characteristic of flooring in that it provides for ease of handling
7.2 Specimens shall be conditioned on a flat surface. If
in rolling, cutting, and fitting.
necessary, they can be weighted to remove all curvature.
ThistestmethodisunderthejurisdictionofASTMCommitteeF06onResilient
8. Procedure
Floor Coverings and is the direct responsibility of Subcommittee F06.20 on Test
Methods - Products Construction/Materials.
8.1 Intheactualflexingofthespecimen,placethespecimen
Current edition approved Dec. 1, 2013. Published January 2014. Originally
over a mandrel with the wearing surface face out and the major
approved in 1971. Last previous edition approved in 2008 as F137-08. DOI:
axis of the specimen perpendicular to the major axis of the
10.1520/F0137-08R13.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or mandrel.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
8.2 Bend the material around the mandrel at a uniform rate
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. through a 180° angle while holding the specimen at each end.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F137 − 08 (2013)
TABLE 1 Precision Data
Take3to5sto complete the bend. Maintain a good contact
between specimen and mandrel.
NOTE 1—MaterialsAand B passed at the smallest mandrel with 100 %
agreement in test results.
8.3 Examine the specimen face visually in the bent position
A B C D E
Materials Average Sr SR r R
for breaks, cracks, or other damage at the completion of the
Material A 0.25000 0.00000 0.00000 0.00000 0.00000
bendingoperation.Whenrequiredbythedetailedspecification,
Material B 0.25000 0.00000 0.00000 0.00000 0.00000
straighten the specimen at the same rate at which it was bent
Material C 1.13889 0.05893 0.20750 0.16499 0.58100
and examine the back for the same faults.
Material D 0.41667 0.00000 0.12910 0.00000 0.36148
Material E 0.90278 0.10206 0.27344 0.28577 0.76563
8.4 When a mandrel of particular diameter has been
Material F 1.250000 0/13176 0.26960 0.36893 0.75489
specified, as for a purchase specification, use that mandrel. Material G 1.27778 0.11785 0.28382 0.32998 0.79470
Material H 1.84722 0.13176 0.62491 0.36893 1.74974
8.5 Determine the smallest mandrel around which the ma-
A
Average is the numerical average of test results for all replicates from all
te
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.