NIGP 84504: Combustion Efficiency Measurement Apparatuses (for Flue Gases, Exhaust Gases, etc.)

NIGP 84504 Combustion Efficiency Measurement Apparatuses (For Flue Gases, Exhaust Gases, Etc.), an Item code, encompasses gas detection and combustion monitoring equipment that state and local governments install at water treatment facilities, wastewater infrastructure, and energy-recovery installations. Work solicited under this code includes purchase and installation of sensors, flow probes, controllers, and calibration systems designed to measure combustion air profiles, detect hazardous gases such as hydrogen sulfide and methane, and optimize combustion efficiency in fixed installations. State and local buyers include city water and wastewater departments and municipal utility authorities responsible for environmental compliance and operational safety. Recent solicitations require vendors to maintain local parts inventory, provide operator training and commissioning support, and hold certifications for maintenance and repairs. Equipment specifications often target named manufacturers—ATI, De Nora, Drager, MSA—or city-approved equivalents, with five-year contract terms and firm fixed pricing for the initial year.

The City of Phoenix Water Services Department and the City of Tampa Solid Waste & Environmental Program Management division posted the two most recent opportunities under this code. Phoenix issued IFB 270435 on August 14, 2026, for atmospheric monitoring instruments at water and wastewater facilities, with sealed offers due September 4, 2026, under a DBE-N participation requirement and 49 CFR Part 26 subcontracting obligations. Tampa posted an intent to single-source NELS air flow probes and calibration services to NELS Consulting Services Inc. on December 31, 2025, with a January 6, 2026 response deadline; the McKay Bay Waste-to-Energy Facility project totals $227,000 for equipment and $53,900 for calibration across two phases. Activity concentrates in Arizona and Florida, with procurement driven by facility upgrades, regulatory compliance mandates, and deferred combustion-optimization initiatives.