Supply approximately 57,797 lbs. per year (approx. 4,950 gallons) of Ortho/Polyphosphate Blended Liquid (Corrosion Inhibitor) to Fort Pierce Utilities Authority (FPUA) as required. The quantity is a good faith estimate based on previous and/or anticipated usage. FPUA reserves the right to purchase more or less than that quantity to conform to the actual need. 2. CHEMICAL AND PHYSICAL REQUIREMENTS The Ortho/Polyphosphate Blended Liquid shall have an Ortho/polyphosphate ratio of 50/50. The product shall be a stable, colorless, clear liquid that is free of impurities. The product shall have a neat pH of between 4.0 -7.0 and a specific gravity of 1.40 ± 0.05. The product shall be ANSI/NSF Standard 60 approved for use as a corrosion inhibitor in potable water.

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