ASTM F3248-17
(Test Method)Standard Test Method for Determining Vertical Deformation and Area Deflection of Area Elastic, Point Elastic, Combined Elastic and Mixed Elastic Sport and Dance Surfaces
Standard Test Method for Determining Vertical Deformation and Area Deflection of Area Elastic, Point Elastic, Combined Elastic and Mixed Elastic Sport and Dance Surfaces
SIGNIFICANCE AND USE
4.1 The dynamic interaction between the athlete and the surface is significant to the performance and comfort of the athlete. Therefore, the ability of the surface to deform under load is important. Too high a vertical deformation can affect the athlete through instability of the foot. Area elastic and combination elastic floors may be further characterized by evaluating the area deflection properties of the surface. Floors with low area deflection levels prevent or remove vibrations through damping mechanisms or design components.
4.2 Vertical deformation is a widely used and recognized property of sports surfaces. Governing bodies, trade associations, and a number of international standards recognize the significance of vertical deformation. A partial list of these organizations includes: FIBA, MFMA, ASTM, EN. Even FIFA utilizes a variation of this property. Area deflection is still commonly specified within North America and one governing body (FIBA) and one trade association (MFMA) currently use this property to certify systems within the required testing for their performance programs.
4.3 Vertical deformation and area deflection testing are performed with a Stuttgart Artificial Athlete (SAA) which can be created by slightly modifying the BAA (Berlin Artificial Athlete) from Test Method F2569. Laboratory experiments are to be conducted at the standard 23 ± 2°C (72 ± 4°F), but tests at additional temperatures may be performed at the request of the client. When evaluating the deflective properties of sports surfaces in the field, testing is to be conducted at the ambient temperature. Deviations from the standard temperature may cause significantly different performance levels.
SCOPE
1.1 This method covers the quantitative measurement and normalization of deflections generated within a sports surface as an indication of the stability and comfort provided by the system.
1.2 Vertical deformation provides a measure for the vertical motion generated within the sports surface system directly below the point of impact which has been normalized to a standard impact force.
1.3 Area deflection provides a measure of the vibrations generated during an impact and their strength at a pre-determined distance from the point of impact.
1.4 This method is not applicable to natural turf, synthetic turf or playground safety surfaces.
1.5 This method is applicable to indoor and outdoor surfaces including but not limited to: wood and synthetic courts, walk/jog/run tracks, tennis courts, dance surfaces, aerobics and general fitness surfaces.
1.6 The methods described are applicable in both laboratory and field settings.
1.7 Area deflection testing is optional, and only applicable to area-elastic, combined elastic and mixed elastic sport surfaces. These include wood surfaces, synthetic surfaces on a sprung wood subfloor, and point elastic surfaces with an internal area elastic component.
1.8 The values stated in SI units are to be regarded as standard. Units provided in parenthesis are informational only.
1.9 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.
1.10 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.
General Information
Relations
Standards Content (Sample)
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.
Designation:F3248 −17
Standard Test Method for
Determining Vertical Deformation and Area Deflection of
Area Elastic, Point Elastic, Combined Elastic and Mixed
1
Elastic Sport and Dance Surfaces
This standard is issued under the fixed designation F3248; 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.
INTRODUCTION
This standard provides the methods to measure the deflective properties of a sports surface. These
deflective properties provide estimates on the stability and comfort from a sport surface. Vertical
deformationisapropertythatprovidesaquickandcost-effectivemeansofestimatingthestabilitythat
a sport surface provides during lower extremity loading.Area deflection is a property that provides a
quick and cost-effective estimate of the vibration properties of a sports surface.Area deflection testing
is limited to area elastic, combination elastic, and mixed elastic flooring systems. It is not applicable
to natural turf, synthetic turf, or playground surfaces.
1. Scope sprung wood subfloor, and point elastic surfaces with an
internal area elastic component.
1.1 This method covers the quantitative measurement and
normalization of deflections generated within a sports surface 1.8 The values stated in SI units are to be regarded as
as an indication of the stability and comfort provided by the standard. Units provided in parenthesis are informational only.
system.
1.9 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.2 Vertical deformation provides a measure for the vertical
responsibility of the user of this standard to establish appro-
motion generated within the sports surface system directly
priate safety, health, and environmental practices and deter-
below the point of impact which has been normalized to a
mine the applicability of regulatory limitations prior to use.
standard impact force.
1.10 This international standard was developed in accor-
1.3 Area deflection provides a measure of the vibrations
dance with internationally recognized principles on standard-
generated during an impact and their strength at a pre-
ization established in the Decision on Principles for the
determined distance from the point of impact.
Development of International Standards, Guides and Recom-
1.4 This method is not applicable to natural turf, synthetic
mendations issued by the World Trade Organization Technical
turf or playground safety surfaces.
Barriers to Trade (TBT) Committee.
1.5 This method is applicable to indoor and outdoor sur-
2. Referenced Documents
faces including but not limited to: wood and synthetic courts,
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walk/jog/run tracks, tennis courts, dance surfaces, aerobics and
2.1 ASTM Standards:
general fitness surfaces.
F2569 Test Method for Evaluating the Force Reduction
Properties of Surfaces for Athletic Use
1.6 The methods described are applicable in both laboratory
and field settings.
2.2 Other Standards:
EN 14809 Surfaces for sports areas – Determination of
1.7 Area deflection testing is optional, and only applicable
vertical deformation
to area-elastic, combined elastic and mixed elastic sport
DIN 18032-2 Halls for Gymnastics, Games and Multipur-
surfaces. These include wood surfaces, synthetic surfaces on a
pose Use, Part 2: Sports Floors Requirements, Testing
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This test method is under the jurisdiction of ASTM Committee F08 on Sports
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Equipment, Playing Surfaces, and Facilities and is the direct responsibility of For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Subcommittee F08.52 on Miscellaneous Playing Surfaces. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Dec. 1, 2017. Published January 2018. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
F3248-17. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F3248−17
TM
MFMA PUR Standard Performance and Uniformity Rat- surfaces in the field, testing is to be conducted at the ambient
ing: Maple Flooring Manufacturer’s Association, Inc. temperature. Deviations from the standard temperature may
FIBA Official Basketball Rules 20155 International Basket- cause significantly different performance levels.
ball Federation
5. Apparatus
3. Terminology
5.1 This standard utilizes the SAA (S
...
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