Standard Test Method for Size and Squareness of Resilient Floor Tile by Dial Gage Method

SIGNIFICANCE AND USE
Both dimension and squareness of resilient floor tile are important considerations, because installed flooring may exhibit an objectionable appearance when either or both characteristics deviate from established tolerances. This test method provides a means of determining actual dimensions and squareness by using a single apparatus and procedure. This test method may be used as a substitute for Test Methods F 536 and F 540, which allow for similar measurements on resilient floor tile up to 12 in. (305 mm) in size.
SCOPE
1.1 This test method covers the determination of both dimensions (length and width) and squareness of resilient floor tile. This test method is intended for use with square tiles ranging from a nominal 9 in. to 40 in. in dimension.
1.2 The values stated in inch-pound 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.

General Information

Status
Historical
Publication Date
09-Sep-2000
Drafting Committee
Current Stage
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ASTM F2055-00 - Standard Test Method for Size and Squareness of Resilient Floor Tile by Dial Gage Method
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F2055–00
Standard Test Method for
Size and Squareness of Resilient Floor Tile by Dial Gage
Method
This standard is issued under the fixed designation F 2055; 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 both
dimensions (length and width) and squareness of resilient floor
tile. This test method is intended for use with square tiles
ranging from a nominal 9 in. (226 mm) to 40 in. (1016 mm) in
dimension.
1.2 The values stated in inch-pound 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 appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Referenced Documents
FIG. 1 Tile Measurement Apparatus
2.1 ASTM Standards:
F 141 Terminology Relating to Resilient Floor Coverings
F 536 Test Method for Size of Resilient Floor Tile by Dial
mounted on a flat bedplate in a configuration that, by rotation
Gage Method
of the sample, allows the measurement of all four sides of
F 540 Test Method for Squareness of Resilient FloorTile by
resilient tile samples (see Fig. 1). One edge of the bedplate is
Dial Gage Method
elevated to create a test surface which is offset or tilted 15 6
1 degrees from horizontal.This offset applies minimal pressure
3. Significance and Use
to the test specimen against the longer index strip to ensure
3.1 Both dimension and squareness of resilient floor tile are
repeatable measurement. A reference plate representing target
important considerations, because installed flooring may ex-
tile size and squareness is used to zero all dial gages (see Fig.
hibit an objectionable appearance when either or both charac-
2).
teristics deviate from established tolerances. This test method
4.2 Dial Gages—The four dial gages are mounted in guide
providesameansofdeterminingactualdimensionsandsquare-
slots that are machined into the bedplate to allow for measure-
ness by using a single apparatus and procedure. This test
ment of various tile sizes while remaining within 10% of the
methodmaybeusedasasubstituteforTestMethodsF 536and
corner of the tile edge (for the two corner gages and one
F 540, which allow for similar measurements on resilient floor
squareness gage) or within the central 10% of the tile edge (for
tile up to 12 in. (305 mm) in size.
the center gage only). Dial gages may report measurements
using either electrical or mechanical means, but they shall be
4. Apparatus
graduated to read 0.001 in. (0.02 mm) and have a stem travel
4.1 The apparatus shall consist of four dial gages (refer-
greater than 0.25 in. (6 mm). The contact foot of the dial-gage
enced A through D in Fig. 1) and two reference index strips
stem shall be flat 0.50–0.75 6 0.001 in. (12.7–19.1 mm 6 0.2
mm) in diameter and exert a total force of not more than 3.0 6
0.1 ozf (0.83 6 0.003 N). Dial gages shall be securely
ThistestmethodisunderthejurisdictionofASTMCommitteeF06onResilient
positioned so that when the reference plate is in place, the
Floor Coverings and is the direct responsibility of Subcommitte F06.20 on Test
contact foot is extended approximately 50% of its full travel.
Methods—Products Construction/Materials.
4.3 Index Strips—The apparatus contains 2 fixed index
Current edition approved Sept. 10, 2000. Published November 2000.
Annual Book of ASTM Standards, Vol 15.04. strips.Ahorizontal index strip shall be mounted parallel to and
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F2055
7.2 Measuring Size and Squareness—Identify one edge of
the sample tile as “Edge #1” by attaching a label to the face of
the tile near that edge. Place the tile into the apparatus and
carefully move it into position such that it will depress all four
dial gages and is in firm contact with both index strips. Record
the measurements on all four gages to the nearest 0.001 in.
(0.02 mm).
7.3 Removethetilefromthebedplateandrotateit90°inthe
clockwise direction. Repeat the process described in 7.2 and
record the four gage readings. Repeat for each of the two
remaining sides.
7.4 After all samples have been measured, place the refer-
ence gage back on the bedplate to verify that no movement of
A: Tile Target Dimension 6 0.001 in. (0.02 mm)
dial gages has occurred. A movement of
...

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