1. No riveted construction shall be acceptable. All attachments shall be welded or utilize stainless steel hardware. 2. The main cabinet door shall have a #2 lock. Two keys shall be supplied for each cabinet. 3. All cabinets shall be furnished with a self-latching three-position door stop which shall hold the main door open at approximately 90,135 and 180 degrees. The door stop shall be designed to lock into position and withstand the force of a 30 MPH wind. 4. Aremovabledustfiltershallbemountedontheinsideofthemaindoorcompletelycovering the intake vent. The cabinet air filter shall be of the throwaway type and its minimum area shall be 250 square inches. The filter shall be installed, positioned and firmly held in place so that all intake air is filtered with no by-passing permitted through cracks, clearance spaces or gaps. Positive retention shall be provided on all sides to prevent warping of the filter and prevent the entry of foreign matter around the edges. 5. All cabinets shall have two independent thermostatically controlled exhaust fans. The exhaust fans shall have a minimum rating of 100 CFM per minute. The fans shall be rated for continuous duty and a lifetime of at least three years. A standard fuse of sufficient rating shall be used to protect against surges and short circuits. The fans shall be standard commercially available units
