The g-max values obtained by these procedures are indicative of the impact attenuation characteristics of playing surfaces used for sports such as American football, soccer, baseball, lacrosse, rugby, etc. Optional time history data can be used to further describe these properties.

1. Scope

1.1 This test method is used to determine the impact-attenuation characteristics of natural turfgrass and soil playing surface systems with a lightweight portable apparatus. This test method can be used to compare the impact attenuation characteristics of natural playing surface systems, as well as assessing the effects of management practices on the impact attenuation characteristics. This test method also can be used to assess the compactibility of natural playing surfaces by recording g-max values or penetration of successive impacts, or both.

1.2 This test method provides a procedure for assessing impact attenuation characteristics in the field, on both actual playing surfaces and research plots. Numerical data will not be comparable to data obtained using a different missile mass or geometry, different drop height, or different standard method, for example, Test Method .

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 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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D5874 Test Method for Determination of the Impact Value (IV) of a Soil

E105 Practice for Probability Sampling of Materials

E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process

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

F355 Test Method for Impact Attenuation of Playing Surface Systems and Materials

F1936 Specification for Impact Attenuation of Turf Playing Systems as Measured in the Field

F2650 Terminology Relating to Impact Testing of Sports Surfaces and Equipment

F2651 Terminology Relating to Soil and Turfgrass Characteristics of Natural Playing Surfaces

Keywords

Clegg tester; g-max; impact attenuation; impact soil tester; impact test hammer; impact value; natural turf; playing surface system; soil; turfgrass; Clegg impact value; Compactibility; Cushioning properties; Impact testing--sports applications/equipment; Lightweight apparatus--specifications; Natural grass field system; Playing surfaces (athletic); Shock absorption/attenuation; Sports facilities playing surfaces;

ICS Code

ICS Number Code 19.060 (Mechanical testing)

Citing ASTM Standards

[Back to Top]