ASTM F2421-19
(Test Method)Standard Test Method for Measurement of Resilient Floor Plank by Dial Gage
Standard Test Method for Measurement of Resilient Floor Plank by Dial Gage
SIGNIFICANCE AND USE
4.1 The combination of both dimensional properties and squareness of resilient floor plank is an important consideration 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 length and width dimensions along with squareness, by using a single apparatus and procedure.
SCOPE
1.1 This test method establishes the procedures for determination of both dimension (length and width) and squareness of resilient floor plank. This test method is intended for use with rectangular plank up to 36 in. (915 mm).
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are provided in applicable sections of this test method.
1.4 The values stated in inch-pounds units are to be regarded as the standard. The values given in parentheses are for information only.
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.
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Designation: F2421 − 19
Standard Test Method for
1
Measurement of Resilient Floor Plank by Dial Gage
This standard is issued under the fixed designation F2421; 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 3. Terminology
1.1 This test method establishes the procedures for determi- 3.1 Definitions: For definitions of terms used in this test
nation of both dimension (length and width) and squareness of method, refer to Terminology F141.
resilient floor plank. This test method is intended for use with
rectangular plank up to 36 in. (915 mm). 4. Significance and Use
1.2 The values stated in inch-pound units are to be regarded 4.1 The combination of both dimensional properties and
as standard. The values given in parentheses are mathematical squarenessofresilientfloorplankisanimportantconsideration
conversions to SI units that are provided for information only because installed flooring may exhibit an objectionable appear-
and are not considered standard. ance when either or both characteristics deviate from estab-
lished tolerances. This test method provides a means of
1.3 This standard does not purport to address all of the
determining length and width dimensions along with
safety concerns, if any, associated with its use. It is the
squareness, by using a single apparatus and procedure.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
5. Apparatus
mine the applicability of regulatory limitations prior to use.
4
Specific precautionary statements are provided in applicable 5.1 The apparatus shall consist of five dial gages and two
sections of this test method.
reference index strips mounted on a flat bedplate in a configu-
1.4 The values stated in inch-pounds units are to be re- ration that, by rotation and flipping of the sample, allows the
garded as the standard. The values given in parentheses are for measurement of all four sides of resilient plank samples. (See
information only. Fig. 1). One edge of the bedplate is elevated to create a test
surface, which is offset or tilted 15+/-1 degrees from horizon-
1.5 This international standard was developed in accor-
tal. The offset applies minimal pressure to the test specimen
dance with internationally recognized principles on standard-
against the longer index strip to ensure repeatable measure-
ization established in the Decision on Principles for the
4
ment. A reference plate representing target plank size and
Development of International Standards, Guides and Recom-
squareness (see Fig. 2) is used to zero all dial gages.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
5.2 Dial Gages—The five dial gages are mounted in guide
slots, which are machined into the bedplate to allow for
2. Referenced Documents
measurement of various plank sizes. For the two corner gages
2
2.1 ASTM Standards: (B & D) and the squareness gage (A) the position must be at
F141 Terminology Relating to Resilient Floor Coverings
least within 10 % of the corner edge relative to the respective
3
2.2 ANSI Standards: length and width of the plank. For the center gages (C & E) the
ANSI/ASQC Z1.4-1993 Sampling Procedures and Tables
position must be at least within 10 % of the centerline relative
for Inspection by Attributes to the respective length and width of the plank.Any dial gages
may report measurements using either electrical or mechanical
means, but shall be graduated to read to the 0.001 in. (0.025
1
This test method is under jurisdiction of ASTM F06 Committee on Resilient
mm) and have a stem travel greater than 0.25 in. (6.4 mm).The
Floor Coverings and is the direct responsibility of subcommittee F06.20 on Test
Methods
contact foot of the dial-gage stem shall be flat, 0.50 to 0.75 6
Current edition approved Jan. 1, 2019. Published February 2019. Originally
0.001 in. (12.7-19.1 mm 6 0.025 mm) in diameter and exert a
approved in 2005. Last previous edition approved in 2011 as F2421–05 (2011).
total force of not more than 3.0 6 0.1ozf (0.83 6 0.003 N).
DOI: 10.1520/F2421-19.
2
Dial gages shall be positioned securely so that when the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3 4
Available from American National Standards Institute, 25 West 43rd St., New Available from Frazier Precision Instrument Company, Inc., 925 N Sweeney
York, NY 10036. Drive, Hagerstown, MD, 21
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2421 − 05 (Reapproved 2011) F2421 − 19
Standard Test Method for
1
Measurement of Resilient Floor Plank by Dial Gage
This standard is issued under the fixed designation F2421; 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 establishes the procedures for determination of both dimension (length and width) and squareness of
resilient floor plank. This test method is intended for use with rectangular plank up to 36 in. (915 mm).
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific precautionary statements are provided in applicable sections of this test
method.
1.4 The values stated in inch-pounds units are to be regarded as the standard. The values given in parentheses are for information
only.
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
2.1 ASTM Standards:
F141 Terminology Relating to Resilient Floor Coverings
3
2.2 ANSI Standards:
ANSI/ASQC Z1.4-1993 Sampling Procedures and Tables for Inspection by Attributes
3. Terminology
3.1 Definitions: For definitions of terms used in this test method, refer to Terminology F141.
4. Significance and Use
4.1 The combination of both dimensional properties and squareness of resilient floor plank is an important consideration
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 dimensional and squareness length and width dimensions
along with squareness, by using a single apparatus and procedure.
5. Apparatus
4
5.1 The apparatus shall consist of five dial gages and two reference index strips mounted on a flat bedplate in a configuration
that, by rotation and flipping of the sample, allows the measurement of all four sides of resilient plank samples. (See Fig. 1). One
edge of the bedplate is elevated to create a test surface, which is offset or tilted 15+/-1 degrees from horizontal. The offset applies
4
minimal pressure to the test specimen against the longer index strip to ensure repeatable measurement. A reference plate
representing target plank size and squareness (see Fig. 2) is used to zero all dial gages.
1
This test method is under jurisdiction of ASTM F06 Committee on Resilient Floor Coverings and is the direct responsibility of subcommittee F06.20 on Test Methods
- Products Construction/Materials
Current edition approved Nov. 1, 2011Jan. 1, 2019. Published November 2011February 2019. Originally approved in 2005. Last previous edition approved in 20052011
as F2421–05. –05 (2011). DOI: 10.1520/F2421-05R11.10.1520/F2421-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute, 25 West 43rd St., New York, NY 10036.
4
Available from Frazier Precision Instrument Company, Inc., 925 N Sweeney Drive, Hagerstown, MD, 21740, USA.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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F2421 − 19
FIG. 1 Plank Measurement Apparatus
FIG. 2 Reference Plate
5.2 Dial Gages—The five dial gages are mounted in guide slots, which are machined into the bedplate to allow for measurement
of various plank sizes. For the two corner gages (B & D) and the squareness gage (A) the position must be at l
...
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