RFB: GAS DILUTION CALIBRATION SYSTEM W/ZERO AIR GENERATOR

The Cherokee Nation is soliciting bids for a Gas Dilution Calibration System with an integrated Zero Air Generator for use by its Natural Resources Environmental Program in Roland, Oklahoma. The system must include a 10 SLPM and a 50 SCCM NIST-traceable mass flow controller, an internal ozone generator capable of producing 20 to 350 ppb ozone, four gas input ports, one zero air port, support for at least 20 programmable gas concentration points, and communication interfaces including analog, Ethernet, and RS-232 compatible with ESC/Agilairé dataloggers. The zero air generator must deliver contaminant-free air with ozone, nitrogen oxides, and sulfur dioxide levels at or below 0.001 ppm and carbon monoxide and non-methane hydrocarbons at or below 0.01 ppm. All equipment must be new, rack-mountable, and accompanied by a calibration and testing data sheet, with a minimum one-year warranty. Compliance with 40 CFR Part 50 Appendix F and QA Handbook Volume II, Chapter 11, is mandatory, and equipment must meet or exceed the specified technical requirements to be considered responsive. Award will be made on a Lowest Price Technically Acceptable basis, with preference given to TERO-certified Indian-owned contractors, making certification a mandatory prerequisite for eligibility. Bidders must submit a completed mandatory bid response sheet, proof of TERO certification if claiming preference, and full technical specifications if proposing product substitutions. No formal FAR clauses are incorporated, but the solicitation includes Cherokee Nation-specific requirements including debarment and responsibility certifications, a prohibition on verbal communications with agency staff, a 30-day bid withdrawal restriction, and Buy American compliance for all materials. Bids are due by May 5, 2026, and must be submitted in hard copy to the Cherokee Purchasing Department, with no electronic submission method specified. Payment will be processed within ten days of the Cherokee Nation’s receipt of funds, and all costs including shipping must be included in the bid price. The contract value is not estimated or disclosed, and no contracting officer or technical representative is named, with Janice Vaughan serving as the primary point of contact for compliance and conflict of interest disclosures.