Specifications include, but are not limited to: 1 Material used to manufacture the Engineered Wood Fiber Surfacing consists of virgin North American hardwoods such as Oak, Maple, Ash, Poplar, Hickory, Beech, Birch, Eucalyptus and Locust. 2 All woods will contain less than 5% bark, leaves, twigs and other foreign materials that hasten decomposition. 3 No chemical treatment or additives are present. 4 Absolutely no recycled wood from pallets or waste wood is acceptable. Recycled wood could result in poor surface stability and it could be contaminated with chemicals that might be harmful to children. SECTION II - DIMENSIONS 5 Engineered Wood Fiber Surfacing shall be randomly sized, approximately ten (10) times longer than wide. 6 Engineered Wood Fiber Surfacing has been tested using ASTM C136 and will meet the following sieve analysis results: 7 Percent Passing Through Sieve: Sieve Size Minimum Passing by Weight, % - 100 3/4 inch 100 3/8 inch 75 No. 4 45 No. 10 15 No. 60 1 No. 200 0.1 8 Ninety-eight percent (98%) of Engineered Wood Fiber Surfacing dimensions shall not exceed 4.00 centimeters in length, 1.30 centimeters in width and 3.25 centimeters in depth. SECTION III - PERMEABILITY 9 Coefficient of permeability is greater than 0.6 cm/sec ASTM D 2434. 10 Moisture absorption of Engineered Wood Fiber Surfacing shall be no greater than one hundred fifty percent (150%) by weight. SECTION IV - GENERAL 11 To meet or exceed the playground surfacing guidelines of the U.S. Consumer Product Safety Commission (using ASTM F355-86 Impact Attenuation Test). 12 Shock absorbing properties of playing surface systems and materials: Temperature Thickness of Drop Height Average Average ° Material Feet "G" Max Severity Index 70° 8" 10' 72 251 70° 8" 12' 81 302 70° 12" 10' 40 113 70° 12" 12' 59 179