Impact absorption, new and old AstroTurf at West Virginia University.
D004864:Equipment and Supplies / Q000592:standards*; D006244:Hardness; D006245:Hardness Tests; D006838:Hydrocarbons; D009757:Nylons; D006109:Poaceae; D013177:Sports; D013499:Surface Properties; D014495:Universities; D014903:West Virginia
D006838:Hydrocarbons; D009757:Nylons