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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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 comes in different thicknesses to optimize safety for the turf you select.

Click for Full Story. The turf playing system typically includes awtm 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. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Sports Surface Testing Machine

The test method, aptly called zstm free-fall drop test, shall be performed at eight different test point locations for four specific types of surface systems, namely: PowerBase Pro provides the ideal balance between shock absorption and field stiffness for elite athletes and is the only product engineered for NCAA, Pro and elite level players.

Active view current version of standard. It is also useful in assessing the playability of a field. The values given in parentheses are for information only.

ASTM F355 – 16E1

D355 GMax of a field is determined by dropping the missile 3 times in the same location and averaging the second two drops. Smaller bodies need a different surface than the pros!

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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. But even considering these factors, aastm Brock field will consistently meet the ranges of natural grass.

GMax Test – Brock International

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. Work Item s – proposed revisions of this standard. This test method is applicable to natural and artificial playing surface systems and to components thereof.

A moderate head injury consists of a loss of consciousness, where a major head injury results in a skull fracture! The safety of the playing surface only degrades over time. Beyond The G-Max Test: Link to Active This link will always route to the current Active version of the standard. For use under artificial turf. Which is why quality natural turf is the benchmark for quality artificial turf. It drops a 10 lb hemispherical impactor from increasing heights to determine Critical Fall Height.

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.

But there are three main reasons fields get hard over time when installed directly over stone: Reduce risk of injuries by putting performance safety layers under the field.

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

This test simulates impact attenuation of a playing surface. HIC is the internationally recognized test standard for head injuries. It is informational only and not aastm official part of the standard; the full text of the standard itself must be referred to for its use and application.

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Put into perspective, the impacts forces allowed on an artificial turf surface are somewhat ludicrous.

Hours of use, climate, and maintenance or lack thereof. The higher the Critical Fall Height, the more protective the surface is for head injuries. These alternate surface materials are not included in the scope of this specification. The original shock pad system that set all industry standards for artificial turf fields. It is the responsibility ashm the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

According to the Penn State Center for Turfgrass Science, impact attenuation of a playing surface is asttm by an accelerometer mounted inside the missiles, that indicates surface hardness and is reported as Gmax. And for good reason.

The Gmax test essentially measures how fast the drop missle stops. All are considered concussions. Link to Active This link will always route to the current Active version of the standard. This test simulates the heel strike of an adult running athlete in stride. There are three measurements used to characterize safety and performance of a surface. It also includes a protocol for determining test point locations on fields that are lined for multiple sports.

This abstract is a brief summary of the referenced standard. C355 Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.