Find the most up-to-date version of ASTM F at Engineering Penn State’s Center for Sports Surface Research. How is Gmax tested? • American Society for Testing and Materials. (ASTM). – Synthetic Turf. • F • F Buy ASTM F TEST METHOD FOR IMPACT ATTENUATION OF PLAYING SURFACE SYSTEMS, OTHER PROTECTIVE SPORT SYSTEMS, AND .
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For use under artificial turf. The Gmax test essentially measures how fast the drop missle astk. Link to Active This link will always route to the current Active version of the standard. Note 1—This test method may also be used to measure the shock-attenuation properties of materials used as protective padding, such as the padding on trampoline frames, football goal posts, gymnasium wall, shoulder pads, body padding, and so forth.
It drops a 10 lb hemispherical impactor from increasing heights to determine Qstm Fall Height. It is also useful in assessing the playability of a field. This abstract is a brief summary of the referenced standard.
A moderate head injury consists of a loss of asstm, where a major head injury results in a skull fracture! By partnering with leading testing facilities and universities around the world, Brock has been able to push the safety standards for the artificial turf industry forward.
Brock is not comfortable simply meeting industry expectations for Gmax ratings.
The higher the g-max value, the poorer the shock-attenuation performance of the surface. Active view current version of standard.
The higher the Critical Fall Height, the more protective the surface is for head injuries.
Sports Surface Testing Machine
And for good reason. All of these areas are regions where an athlete should expect compliant impact attenuation characteristics, but, aastm does not imply that an injury cannot be incurred if the surface system complies with this specification. Click for Full Story. The turf playing system typically includes field areas within and outside the ast, lines extending to the sport specific limit lines as defined by the appropriate regulating body or appropriate standard, or both.
Impact Machines: Sports Surface Testing Machine / standard ASTM F, F, F
It requires the missile to be dropped in a minimum of 10 locations around the field. Adtm is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Reduce risk of injuries by putting performance safety layers under the field.
This is our playground product. These alternate surface materials are not included in the scope of this specification. 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.
It should not be used, without some modifications, to test the finished products.
This specification covers a test method and the corresponding performance requirement for the maximum impact attenuation in all t355 of turf playing systems installed for North American football fields that is intended to establish a method for identifying and reporting areas within an existing playing system where shock-absorbing properties exceed recommended threshold values. GMax is one benchmark at which to rate each field. This test simulates impact attenuation of a playing surface.
It comes in different thicknesses to optimize safety for the turf you select.
The GMax of a field is determined by dropping the missile 3 times in the same location and averaging the second two drops. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Put into perspective, the impacts forces allowed on an artificial turf surface are aetm ludicrous.
This is the softness or hardness under foot during play. PowerBase Pro provides asgm ideal balance zstm shock absorption and field stiffness for elite athletes and is the only product engineered for NCAA, Pro and elite qstm players. The safety of the playing surface only degrades over time. All are considered concussions. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations asfm to use.
This test method is applicable to natural and artificial playing surface systems and to components thereof. Smaller bodies need a different surface than the pros!
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Historical Version s – view previous versions of standard. Hours of use, climate, and maintenance or lack thereof. This test simulates the heel strike of an adult running athlete in stride. The original shock pad system that set all industry standards for artificial turf fields.
But there are three main reasons fields get hard over time when installed directly over stone: The values given in parentheses are for information only. Bringing the allowable GMax thresholds back to within reasonable limits is the current direction for most field designers and owners.