IFB-16465A - 16465A Liquid Sodium Hydroxide (Caustic Soda)

Summary of Specifications:
The Water Board is soliciting Bids for Liquid Sodium Hydroxide (Caustic Soda – 50%). 

The sodium hydroxide (caustic soda, NaOH) solution in water shall contain approximately 50% (or 20% by special request) sodium hydroxide by weight and shall be electrolytic diaphragm grade or higher. The liquid caustic soda shall contain no soluble material, insoluble material or organic substance in quantities capable of producing deleterious or injurious effects on the health of those consuming water that has been treated properly with caustic soda. It shall be clear with no color. 

The liquid caustic soda shall meet or exceed all the requirements of AWWA Standard Specification B501-03, or the most current version, and be certified as meeting the ASNI/NSF 60 standards for drinking water additives. Certification by NSF International or Underwriters Laboratories, Inc. is acceptable for meeting the ASNI/NSF 60 standards. Certification by independent laboratories other than those cited above may be acceptable. Acceptance or rejection or a certification by a laboratory other than those listed is at Denver Water’s sole discretion.