Laserfiche WebLink
residual and far no less than twenty-four (24) hours at <br />140 degree F. <br />2. The City reserves the right to run performance tests once <br />a month. <br />3. Any product which, in the City's opinion, does not meet <br />the specified performance requirements or fails to <br />comply with the specifications will be disqualified. <br />D. COVERAGE <br />i. These specifications cover blends of phosphate compounds used to stabilize or <br />sequester soluble iron and manganese in potable water. <br />E. PHYSICAL FORM <br />i. Product shall be a granular form. Powdered material will not be accepted. <br />F, PHYSICAL STANDARDS <br />i. Phosphate blend shall comply with the following physical requirements: <br />1. Color: White <br />2. Solubility: Completely miscible in water <br />3. Percent Phosphate as PO4 Minimum of 80% <br />4. Physical Form: Granular <br />G. CHEMICAL STANDARDS <br />i. Phosphate blend shall contain only NSP approved phosphorous ingredients. <br />ii. No amines or other chelating agents shall be used. <br />iii. Blended pliospliate product formulation shall be only sodium salts of <br />phosphate c.onipc: timis, <br />iv. No potassium salts shall be used. <br />V. Impurities in polyphosphate products shall not exceed the following <br />concentrations: <br />Arsenic as AS � <br />mm0.001 mg/1 m <br />Copper as CU <br />....... <br />0.2 m /lm <br />Heavy Metals (total as Pb) <br />_..� ..... <br />0.001 MR/1 <br />Iron FE <br />0.1 mg/1 <br />Manganese as MN <br />< .05 mg/1 mm <br />'_Organics .. C .. �w <br />None <br />as SI02 <br />1.0 <br />_Silica <br />Zinc as ZN <br />..._.��� a 1 <br />0.01 <br />