UNSPSC 41113116: Gas detector tubes

UNSPSC 41113116 Gas detector tubes is a Commodity code representing detection and monitoring equipment purchased by state and local governments to identify hazardous atmospheric conditions in confined spaces, water treatment facilities, and industrial settings. Recent solicitations show state and local buyers acquiring fixed atmospheric monitoring systems with sensors and controllers that detect hydrogen sulfide, methane, oxygen depletion, chlorine, ammonia, ozone, chlorine dioxide, and carbon monoxide; CO2 fire suppression and gas detection inspection services; and related calibration materials and replacement parts. The issuing bodies span city water and wastewater departments, county public works agencies, environmental services divisions, and state land management offices—a mix that reflects the widespread need for gas detection across municipal utilities, environmental compliance, and facility management functions. Work includes system installation, commissioning, operator training, semiannual and annual preventive maintenance, testing, and parts inventory management.

Recent activity appears concentrated in the Southwest and Southeast, with posted opportunities from the City of Phoenix Water Services Department (Arizona), the City of Tucson Environmental and General Services Division (Arizona), Orange County OC Public Works (California), Gwinnett County (Georgia), and the Texas General Land Office. The City of Phoenix issued IFB-27-0435 on August 14, 2026, seeking atmospheric monitoring instruments and replacement parts with offers due September 4, 2026, under a five-year firm-fixed-price contract; Orange County OC Public Works posted a competitive bid on September 28, 2026 (IFB 0803129604REA) for CO2 fire suppression and gas detection inspection services at a Central Utilities Facility, with bids due October 7, 2026, and a DVBE five-percent preference available; the City of Tucson posted RFP 240011 on September 30, 2026, for gas extraction and removal services requiring EPA certification and documented gas recovery, with proposals due September 19, 2024. The Phoenix and Tucson opportunities reference Federal Transit Administration compliance and small-business participation requirements consistent with DBE-Neutral and DBE programs respectively.