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Strong <br />and <br />ssoclates, LLC <br />Professional Consultants <br />TESTING REPORT <br />DATE: 10 February 2010 <br />SUBJECT: Trash carts <br />PRODUCT IDENTIFICATION: Cascade 96 gallon container <br />TEST: WIND TUNNEL <br />TEST DESCRIPTION: This test is a measure of the stability of the cart in a high wind. Although <br />not specifically tied to the basic purpose of the cart, most consumers would object to a cart that <br />often tipped over and spilled the contents. <br />MINIMUM PERFORMANCE STANDARD: No standard has been set although some local <br />standards may exist. <br />TEST PROCEDURE: <br />1. A large wind tunnel with a 54 inch diameter exit opening is used for the test. The wind <br />was supplied by a Gates Super HC drive with capability to achieve various velocities. <br />2. Position the cart in the steady wind stream zone. (Approx. 48 inches from the opening.) <br />3. The bottom of the cart is to be level with the exit opening and is to rest on a concrete <br />surface that has a surface texture similar to a roadway. <br />4. Test cart in three orientations toward the wind tunnel opening — front, side and back. <br />5. In each orientation, the cart should be tested against a barrier to simulate performance <br />against a street curb. The barrier should prevent the cart from sliding. <br />6. Measure the air velocity at the leading surface of the cart using a certified volometer. <br />Placement of the volometer in front of the cart and a few inches down from the top of the <br />cart is ideal. <br />7. The wind velocity is raised in increments with sufficient time between changes to <br />monitor whether the cart is stable. The highest wind velocity achieved is recorded. <br />8. The carts are blocked against a barrier that is placed behind the wheels. The point of <br />non -stability (end point) is when the cart tipped over. The wind speed is taken as the <br />average of at least 3 repetitions. <br />9. Modifications in cart characteristics or positioning may also be tested and noted. <br />TEST RESULTS: <br />Orientation Towards Wind Tunnel <br />Front I Side <br />Highest Stable Wind 49 mph 51 mph <br />Speed (Blocked) <br />11117 <br />J'43' <br />Brent Strong <br />Professor, Manufacturing Engineering Technology <br />Brigham Young University, Provo, UT 84602 <br />Back <br />60 mph <br />8254 Creative Place Sandy, Utah 801/733-7575 <br />