Specifications include, but are not limited to: Sodium Chloride: for ice and snow removal, shall meet the requirements outlined below and shall be obtained from natural deposits or man produced. A minimum of 95% NaCl chemical composition is needed; Sieve Size - 12.5 (1/2"), 9.5 (3/8), 4.75 (No. 4), 2.36 (No. 8), .600 (No. 30); To be palletized and packaged in 2,500 lb. Bulk bags with 3 mil polyethylene liner that shall be adequately secured to provide a waterproof closure.