ASTM F1702-96

Standard Test Method for Measuring Shock-Attenuation Characteristics of Natural Playing Surface Systems Using Lightweight Portable Apparatus

SCOPE
1.1 This test method covers the determination of shock-attenuation characteristics of natural turf grass and soil playing surface systems using lightweight portable apparatus. This test method is applicable for comparing natural surfaces and for assessing the effects of management practices on shock attenuation. This test method also can be used to assess the compatibility of natural surfaces by recording G max values or penetration of successive impacts, or both.  
1.2 This test method provides a procedure for assessing impact characteristics in the field, on actual playing surfaces and on research plots. Numerical data will not be comparable to data obtained using a different missile mass or geometry, using a different drop height, or using a different standard method, for example, Test Method F 355.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 This standard may involve hazardous materials, operations and equipment. 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: 31-Dec-1995
• Technical Committee: F08 - Sports Equipment, Playing Surfaces, and Facilities
• Drafting Committee: F08.64 - Natural Playing Surfaces

Relations

• Replaced By: ASTM F1702-96(2002)e1 - Standard Test Method for Measuring Shock-Attenuation Characteristics of Natural Playing Surface Systems Using Lightweight Portable Apparatus
• Effective Date: 10-May-1996

Standards Content (Sample)

Designation: F 1702 – 96
Standard Test Method for
Measuring Shock-Attenuation Characteristics of Natural
Playing Surface Systems Using Lightweight Portable
1
Apparatus
This standard is issued under the fixed designation F 1702; 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.
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1. Scope ing Surface Systems and Materials
1.1 This test method covers the determination of shock-
3. Terminology
attenuation characteristics of natural turfgrass and soil playing
3.1 Definitions of Terms Specific to This Standard:
surface systems using lightweight portable apparatus. This test
3.1.1 acceleration—the instantaneous time rate of change
method is applicable for comparing natural surfaces and for
of velocity, which may be positive or negative.
assessing the effects of management practices on shock attenu-
3.1.2 G, n—the dimensionless ratio of the acceleration (a)
ation. This test method also can be used to assess the
of the missile during impact to the acceleration due to gravity
compactibility of natural surfaces by recording G values or
max
(g): G 5 a/g.
penetration of successive impacts, or both.
3.1.3 G , n—the maximum value of G encountered dur-
max
1.2 This test method provides a procedure for assessing
ing impact.
impact characteristics in the field, on actual playing surfaces
3.1.4 playing surface, n—the surface of contact with a
and on research plots. Numerical data will not be comparable
player, ball, or any other object or animal utilizing the surface.
to data obtained using a different missile mass or geometry,
A natural playing surface may be turfgrass or other vegetation,
using a different drop height, or using a different standard
soil, sand, other natural organic and inorganic materials, or
method, for example, Test Method F 355.
combinations of these types of surfaces.
1.3 The values stated in SI units are to be regarded as the
3.1.5 playing surface system, n—a composite that includes
standard. The values given in parentheses are for information
the contact surface, energy-absorbing materials, if any, and the
only.
substrates.
1.4 This standard does not purport to address all of the
3.1.6 turf, n—a covering of mowed vegetation, usually a
safety concerns, if any, associated with its use. It is the
turfgrass, growing in association with an upper soil stratum of
responsibility of the user of this standard to establish appro-
intermingled roots and stems.
priate safety and health practices and determine the applica-
3.1.7 turfgrass, n—a species or cultivar of grass, usually of
bility of regulatory limitations prior to use.
spreading habit, which is maintained as a mowed turf.
2. Referenced Documents
4. Summary of Test Method
2.1 ASTM Standards:
4.1 A 2.25-kg missile is dropped from a specific height onto
D 5874 Test Method for Determination of the Impact Value
2 a playing surface. A linear accelerometer mounted on the
(IV) of a Soil
3 missile monitors the acceleration and the time history of
E 105 Practice for Probability Sampling of Materials
impact. The G is detected, and with suitable instrumenta-
max
E 122 Practice for Choice of Sample Size to Estimate a
3 tion, the time history may be recorded optionally. Depth of
Measure of Quality for a Lot or Process
penetration from successive drops may be recorded optionally
E 177 Practice for Use of the Terms Precision and Bias in
3 as an indication of soil compactibility.
ASTM Test Methods
E 691 Practice for Conducting an Interlaboratory Study to
NOTE 1—This test method is based on an impact tester developed by
3
5
Determine the Precision of a Test Method Clegg (1,2). See Test Method D 5874. Such impact testers are commer-
cially available. Commercially available Clegg Impact Soil Testers display
F 355 Test Method for Shock-Absorbing Properties of Play-
results in impact value units, where one impact value equals ten G
max
units, and typically do not display tenths of an impact value unit. For use
1
This test method is under the jurisdiction of ASTM Committee F-8 on Sports
in this standard, the display should be altered by the manufacturer or
Equipment and Facilities and is the direct responsibility of Subcommittee F08.64 on
Natural Turf.
Current edition approved May 10, 1996. Published July 1996.
2
4
Annual Book of ASTM Standards, Vol 04.08.
Annual Book of ASTM Standards, Vol 15.07.
3
5
Annual Book of ASTM Standards, Vol 14.02.
Numbers in parentheses refer to the list of references at the end of this test
method.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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F 1702
authorized personnel to indicate tenths of an impact value or one G
test units on playing surfaces.
max
unit. Also, other suitable recording equipment c
...