ASTM F2199-20

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Designation: F2199 − 18 F2199 − 20
Standard Test Method for
Determining Dimensional Stability and Curling Properties of
Resilient Flooring after Exposure to Heat
This standard is issued under the fixed designation F2199; 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.
1. Scope
1.1 This test method covers the determination of the change in linear dimensions of resilient floor tile/plank products after
exposure to heat and reconditioning to ambient temperature.
1.2 This test method allows one to also measure curling that can occur after a specimen has been exposed to heat and
reconditioned back to ambient temperature.
1.3 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.
1.4 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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 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.
2. Referenced Documents
2.1 ASTM Standards:
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
F141 Terminology Relating to Resilient Floor Coverings
F2055 Test Method for Size and Squareness of Resilient Floor Tile by Dial Gage Method
F2421 Test Method for Measurement of Resilient Floor Plank by Dial Gauge
3. Terminology
3.1 Definitions are in accordance with Terminology F141 unless otherwise indicated.
4. Significance and Use
4.1 The final appearance of an installed floor depends upon several factors. These include but are not limited to size and
squareness in the case of tiles/planks, the quality of joint cut, the quality and preparation of the subfloor and the skill of the installer.
Long term appearance of the installed floor is also dependent on but not limited to the ability of the tile/plank to resist shrinkage
due to internal stress relief. This test method is used to measure the ability of the floor to retain its original dimensions following
exposure to heat, simulating a long service life at reasonable and expected temperatures.
5. Apparatus
5.1 Mechanical Convection-Type Oven, or equivalent, capable of maintaining a default temperature of 180 6 3.6 °F (82 6 2
°C), with inside dimensions large enough to hold several tile/planks horizontally on aluminum exposure plates. Other temperature
settings may be utilized, if specifically referenced in a resilient flooring specification. Temperature must be maintained to the same
63.6 °F(2 °C) accuracy of desired set point.
This test method is under the jurisdiction of ASTM Committee F06 on Resilient Floor Coverings and is the direct responsibility of Subcommittee F06.20 on Test Methods.
Current edition approved July 15, 2018June 1, 2020. Published August 2018June 2020. Originally approved in 2002. Last previous edition approved in 20142018 as
F2199-09 (2014). -18. DOI: 10.1520/F2199-18.10.1520/F2199-20.
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volume information, refer to the standard’s Document Summary page on the ASTM website.
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F2199 − 20
5.2 Specimen Exposure Plates, consisting of flat 14-gauge, 0.0625-in. (1.6-mm), thick aluminum. The aluminum exposure
plates may be contained in a rack, either fixed in or removable from the rack, and should be at least 1 in. (25.4 mm) larger in each
linear dimension than the linear dimension of the specimen tested. If contained in a rack, the spacing between each plate should
be at least 0.625-in. (16-mm). The rack shall be constructed with all four sides open.
5.3 Block and Dial Gauge Assembly, as described in Test Method F2055. See Fig. 1. If testing planks longer than 24 in. (610
mm), Test Method F2421 shall be utilized for size measurements.
5.4 Forced Air Cooling (Fan, Blower, etc.), may be used for accelerating specimen conditioning before heating and after cooling
exposure to ensure proper equilibrium of test specimen (see 6.1 and 7.1).
5.5 Micrometer, The micrometer shall be pillar-mounted, or other suitable device accurate to at least 0.001 in. (0.025 mm).
5.6 Feeler Gauge, Feeler gauges shall be down to 0.001 in. (0.025 mm).
5.7 Calibrated Shim or Spacer Block, of appropriate dimensions.
5.7.1 The calibrated shim or spacer block allows one to measure plank width differences utilizing the block and dial gauge
apparatus (see Fig. 2 as an example).
5.8 Reference Plates, Different tile/plank sizes, with respective reference plates, can be specified, provided the size and
squareness apparatus is designed to handle the testing and measurement of the different sizes.
6. Test Specimen
6.1 The test specimen consists generally of a resilient floor tile or plank. Run test in duplicate. Typical floor tile/plank
dimensions are 12 by 12 in. (305 by 305 mm), 24 by 24 in. (610 by 610 mm), 5 by 48 in. (127 by 610 mm), 5 by 12 in. (127 by
305 mm) or 5 by 24 in. (127 by 610 mm); for a cut down plank. Other sizes in square or rectangular dimensions may also be tested
FIG. 1 Apparatus for Measuring Side Length, Straightness
Key
1 edge 1 A template 610 by 610 mm
2 edge 2 A template 508 by 508 mm
3 edge 3 A template 305 by 305 mm
4 edge 4 A template 229 by 229 mm
a Within 10 % of the corner of the tile edge.
b Within the central 10 % of the tile edge.
c Within 10 % of the corner of the tile edge.
d Within 10 % of the corner of the tile edge
F2199 − 20
FIG. 2 Example Shim Block/Plank Measurement Set-up
provided the block and dial gauge can accommodate size capability and calibration requirements. If testing planks longer than 24
in. (610 mm), Test Method F2421 shall be utilized for size measurements greater than 24 in. (610 mm).
7. Conditioning
7.1 A conditioned room maintained at a temperature of 73.4 6 1.8 °F (23 6 1 °C) and 50 6 5 % relative humidity.
7.2 Conditioning Before Exposure: Condition the specimens at 73.4 6 1.8 °F (23 6 1 °C) and 50 6 5 % relative humidity for
not less than 24 h prior to starting the test unless otherwise specified.
8. Procedure
8.1 Different tile/plank sizes, with respective reference plates, can be specified provided the size and squareness apparatus is
designed to handle the testing and measurement of the different sizes.
8.2 Conditions for Measurement—Measure the tile specimen (8.4, 8.5, 8.8, 8.9) in the conditioning room (7.1).
8.3 Calibration of Block and Dial Gauge Indicators—Calibrate the block and dial gauge indicators as indicated in Test Methods
F2055 or F2421, respectively.
8.4 Initial Measurements – Dimensional Stability:
8.4.1 Initial Measurement—Place the specimen, after conditioning (7.2), on the block and dial gauge assembly (5.3) face up and
measure in the machine direction (MD), if identifiable, and the across machine direction (AMD), if identifiable, according to the
procedure in Test Methods F2055 or F2421. These points shall be marked as reference locations on the specimen so that the final
measurements will be made at the same exact locations. Three measurements in the across manufacturing direction (AMD) of the
flooring material, and minimum two measurements in the manufacturing (MD) direction are required. For narrow planks (where
two measurement gauges cannot be utilized for measurements – See Fig. 2) take first MD reading then turn sample 180 degrees
for second MD reading. The squareness measurement step is not required.
8.5 Initial Measurement – Curling:
8.5.1 Use a feeler gauge and measure the space between the support plate and the bottom of the product at the corners. If using
feeler gauges, read to the nearest 0.001 in. (0.025 mm). An alternative to using feeler gauges is the use of a micrometer (5.5). If
using a micrometer, read the height difference from the surface plate to the top of the specimen at the reference locations, at the
corners, unless otherwise instructed. Read to the nearest 0.001 in. (0.025 mm). (Warning–When handling test specimens and
making measurements, to avoid distortion, do not apply undue force to the test specimen.
8.6 Heat Exposure—Start the heat exposure portion of the test within 1 h or making the initial dimensional measurements.
8.6.1 Place the tile/plank specimen face up in the exposure rack (5.2) on the aluminum exposure plates. Position the plates on
racks in the heated cabinet (5.1) at 180 6 3.6 °F (82 6 2 °C) for 6 6 0.25 h (standard default temperature unless otherwise cited
in a flooring specification document). Expose the four open sides of the rack to the direction of the airflow within the cabinet so
that the circulating air passes freely over the tile specimens.
8.6.2 If a different temperature or time, or both, is utilized, the test sheet must accurately reflect conditions used to test the curl
and dimensional stability. The same tolerances for temperature and time, as required for default conditions, would apply to any
different set of temperature/time conditions utilized.
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8.7 Conditioning after Exposure—Remove the specimen plate assembly from the oven cabinet (5.1). Allow th
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