Specifications include, but are not limited to: 1. Sodium Hydroxide shall be furnished in strict compliance with current version of AWWA Standard B501 (except as modified below) and shall be NSF certified as a drinking water treatment chemical (as manufactured and as repackaged, if applicable). a. All bids must be accompanied by a complete analysis of constituents along with a copy of the NSF certification. b. Material provided shall be a 25 percent, membrane grade caustic soda. 2. Physical and Chemical Properties: • Sodium Hydroxide, NaOH 24% - 26% • Sodium Oxide, Na2O 18.5% - 20.5% • Specific Gravity 1.25-1.30 3. Sodium Hydroxide not meeting the specifications outlined herein shall be rejected. 4. Deliveries are to be made in 55 gallon drums. 5. Empty drums from previous delivery shall be picked up during next delivery.