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3. Wheels: Two (2) wheels with self-lubricating bearings with a minimum load rating of 120 <br /> lbs. per wheel. Wheels shall be attached to the axle via a tamper resistant snap-on method <br /> which contains no metal components. No cotter pins, "Pal nuts" or similar restraining <br /> devices shall be utilized to attach the wheel. All wheels shall be 1.75 inches wide. Wheels <br /> shall be easily removed for replacement with a non-commercially available tool. <br /> Wheel Sizes: Size A: 8 inches <br /> Size B: 10 inches <br /> Size C: 12 inches <br /> 4. Axles: Axles shall be solid steel and electro-plated with black zinc for durability and long <br /> life. Carts should be designed in such a way as to prevent the axle from popping out. An <br /> axle, which is only press fitted and not secured in some additional manner will not be <br /> acceptable. <br /> Axle Sizes: Size A: 5/8 inch <br /> Size B: 6/8 inch <br /> Size C: 7/8 inch <br /> 5. Lids: Lids shall be molded of the same material as the cart body and shall be permanently <br /> attached to the cart body with plastic hinge(s). Metal fasteners are not acceptable. Lids <br /> shall be watertight and slightly domed to facilitate run-off of rainwater. The lid shall be <br /> designed to fold over parallel to the back side of the cart when fully opened. Lids shall be <br /> factory assembled. <br /> 6. Locking Bar: The semi-automated lifting area shall be integrally molded with the body of <br /> the cart. The locking bar shall be able to rotate a full three-hundred sixty(360) degrees and <br /> shall be constructed of zinc-coated steel to prevent rust and corrosion. Plastic locking bars <br /> are unacceptable. <br /> 7. Certification by a certified independent laboratory shall be required of the following <br /> minimum standards and quality assurance measurements: <br /> 7.1 Drop Impact Test - material and weight shall be cold soaked at a temperature of not <br /> less than -20 F for 24 hours and dropped within 60 seconds of leaving the cold <br /> chamber. Carts shall remain watertight after a minimum drop height of 15 feet. <br /> Test loads are as follows: <br /> Size A: 120 lbs. distributed <br /> Size B: 160 lbs. distributed <br /> Size C: 180 lbs. distributed <br />