Acid storage fume hood cabinets shall utilize the same thickness of steel and construction features as other base cabinets except they shall be completely lined with a Polyethylene corrosion resistant liner. The liner shall be 5mm thick, Each door shall have a set of louvers at the top and bottom, and have a 3mm sheet polyethylene liner. Where specified, each cabinet shall be vented into the fume hood with a 40mm vent pipe. It should provide a positive airflow directly into the fume hood exhaust system. Where specified or shown on drawings, epoxy coated wire shelf supported by integral brackets shall be built into the Polyethylene liner.