For several years, there has been active movement to reduce the Gmax level allowed in ASTM’s F1292 standard for Playground Surfacing. The most recent effort attempted to reduce the allowable Gmax levels. This most recent effort received enough negative votes during the balloting process that the item was removed from consideration. What does that mean? It simply means that if another effort is taken to reduce Gmax levels within this ASTM Standard it will have to start at the beginning of the process. It will need a new rational and basis, and it will have to be formally balloted again at the subcommittee and main committee levels within ASTM F08.
By: Paul W Elliott, PhD, PE Before discussing dead-spots, I want to briefly address field performance. If an architect, or owner, is concerned about the