Item 1. Specifications Aluminum Sulfate 48% Iron Free Liquid Composition Meets current AWWA Standard B403 and: A. Liquid aluminum sulfate clarity. Liquid alum shall be of such clarity as to permit the reading of flowmeasuring devices without difficulty and free from suspended material. B. Liquid alum shall contain water-soluble aluminum of not less than 4.23 percent as Al or 8.0 percent as Al203, except by agreement between the supplier and purchaser. C. Basic and acidic alum. The range of basicity or acidity of alum is subject to agreement between the supplier and purchaser. D. In liquid alum, the water-insoluble matter shall not exceed 0.7 percent. E. Specific impurity limits. The total water-soluble iron (expressed as Fe203) content of aluminum sulfate shall be no more than 25 ppm. F. Where the ANSI/AWWA Standard has conflicting requirements with that of CWD, the CWD purchase specifications and delivery acceptance procedures shall take precedence over the ANSI/AWWA standard. Specifications Ammonium Sulfate 40%- Liquid • Composition A. Ammonium Sulfate 40% - Technical. The liquid shall be of such clarity as to permit the reading of flowmeasuring devices without difficulty and free from suspended material. B. Iron, mg/L less than 100 mg/L C. Specific Gravity: 1.23 D. pH 2 -7 E. Water Insoluble < 0.01% F. pH of solution: 6.3 range 2.5 – 7.0 Specifications Sodium Bisulfite Meets current AWWA Standard B703 and: • Composition A. Liquid Sodium Bisulfite 38%- Technical. The liquid shall be of such clarity as to permit the reading of flowmeasuring devices without difficulty and free from suspended material. A straw color B. Liquid Sodium Bisulfite Assay shall be 38% ranging in concentration from 30.0 – 45.0 % except by agreement between the supplier and purchaser.
