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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The safety of the playing surface only degrades over time. The values given in parentheses are for information only. Referenced Documents purchase separately V355 documents listed below are referenced within the subject standard but are not provided as part of the standard. Click for Full Story. Hours of use, climate, and maintenance or lack thereof. It requires the missile to be dropped in a minimum of 10 locations around the field. It should not be used, without some modifications, to test the finished products.

Work Item s – proposed revisions of this standard. Awtm into perspective, the impacts forces allowed on an artificial turf surface are somewhat ludicrous. Bringing the allowable GMax thresholds back to within reasonable limits is the current direction for most field designers and owners. GMax ashm one benchmark at which to rate each field.

Impact Machines: Sports Surface Testing Machine / standard ASTM F, F, F

This is the softness or hardness under foot during play. Beyond The G-Max Test: Active view current version of standard. It 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. These alternate surface materials are not included in the scope of this specification.


Which is why quality natural turf is the benchmark for quality artificial turf.

All of these areas are ff355 where an athlete should expect compliant impact attenuation characteristics, but, it does not imply that an injury cannot be incurred if the surface system complies with this specification. Measuring impact-attenuation is a fundamental tool of athletic field safety testing. The original shock pad system that set all industry ff355 for artificial turf fields.

Typical playing surfaces are wrestling mats, football fields, soccer fields, playgrounds, and so forth.

This test method is applicable to natural and artificial playing surface systems and to components thereof. PowerBase Pro provides the ideal balance between shock absorption and field stiffness for elite athletes and is the only product engineered for NCAA, Pro asrm elite level players.

But there are three main reasons fields get hard over time when installed directly over stone: Link to Active This link will always route to the current Active version of the standard. Test providers can adapt the procedures and guidelines contained herein to tests performed on aztm turf playing system. It drops a 10 lb hemispherical impactor from increasing heights to determine Critical Fall Height.


The turf playing system typically includes field areas within and outside the inbound lines extending to the sport specific limit lines as defined by the appropriate regulating body or appropriate standard, or both.

There are three measurements used to characterize safety and performance of a surface.

It comes in different thicknesses to optimize safety for the turf you select. HIC is the internationally recognized test aztm for head injuries. But even considering these factors, a Brock field will consistently meet the ranges of natural grass. Brock is not comfortable simply meeting industry expectations for Gmax ratings.

Sports Surface Testing Machine

Historical Version s – view previous versions of standard. The Gmax test essentially measures how fast the drop missle stops. Referenced Documents purchase separately The documents listed below are referenced f535 the subject standard but are not provided as part of the standard.

It is possible, and quite common, to have areas of the field with very high Gmax scores, while other areas such as sidelines with low Gmax Scores, so the field average may pass, yet have areas that would be considered unacceptable. Smaller bodies need a different surface than the pros!