UNSPSC 41104210: Dissolvers

UNSPSC 41104210 Dissolvers (Commodity) addresses atmospheric monitoring instruments and related equipment for detecting hazardous gases at water and wastewater facilities. State and local governments procure fixed gas sensors, controllers, alarms, calibration materials, replacement parts, and accessories under this code to detect hydrogen sulfide, methane, oxygen depletion, chlorine, ammonia, ozone, chlorine dioxide, and carbon monoxide at lift stations, headworks buildings, chemical storage rooms, confined space entry points, process basins, and underground vaults. Installation assistance, testing, commissioning, documentation, and operator training are typically bundled into the solicitation. Issuing bodies include water and wastewater utilities operating within municipalities; the City of Phoenix Water Services Department represents this buying pattern, with DBE-Neutral program participation and small business subcontractor compliance requirements typical of Federal Transit Administration funded work in the sector.

The City of Phoenix Water Services Department issued IFB 270435 for atmospheric monitoring instruments–fixed installations on August 14, 2026, with sealed offers due September 4, 2026, at 2:00 p.m. The five-year firm-fixed-price contract requires maintenance of replacement parts in local stock with 48-hour delivery capability, technician certification, and annual price increase submissions with 60 days' written notice. Manufacturers specified or approved include ATI, De Nora, Drager, and MSA. A non-mandatory pre-offer conference was held August 25, 2026, via WebEx; written inquiries closed September 1, 2026. The source shows limited recent activity under this code; no additional state or local opportunities appear in the dataset.