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<br /> <br /> <br /> <br />vii. Evaluation <br />1. Sample product analysis <br />2. Reference interview and possible sample analysis <br />3. Verification of ingredients. <br />viii. Testing <br />1. The City reserves the right to submit samples of the <br />polyphosphate product to an independent laboratory of <br />the City’s choice for chemical, biological, and physical <br />analysis and testing. <br />2. Any product which, in the City’s opinion, contains <br />hazardous or deleterious substance or fails to comply <br />with these specifications will be disqualified. <br />3. The cost of this analysis and testing will be incurred by <br />the vendor with the understanding that a maximum of <br />ten samples per year will be submitted. <br />4. Guaranteed minimum available phosphate percentage <br />as PO4 is to be Eighty Percent (80%). <br />ix. Other evaluation: <br />1. List of data that confirms products effect on (a) copper, <br />(b) sequestration <br />2. List of data that confirms company’ experience in other <br />cities and technical support. <br />x. Certified Analysis <br />1. The supplier shall provide a certified chemical analysis <br />of a pyrophosphate product sample taken from the <br />production facility from which he proposes to supply the <br />City of South Bend. <br />2. He shall further certify analysis to be representative of <br />the product he proposes to provide the City. <br />xi. Performance Requirements <br />1. When applied at a rate yielding not more than four (4) <br />parts of pyrophosphate as PO4 to each part of iron and <br />manganese, the product shall be capable of holding iron <br />and manganese in solution for no fewer than five (5) <br />days at seventy (70) degrees Fahrenheit in the presence <br />of one-half milligram per liter (0.5 mg/1) free chlorine