UNSPSC 41113100: Gas analyzers and monitors

UNSPSC 41113100 Gas analyzers and monitors, a Class code, encompasses portable and stationary instruments for measuring gas composition, emissions, and air quality across environmental monitoring, wastewater treatment, vehicle emissions testing, and laboratory applications. State and local governments are procuring equipment including open-path CO₂ and methane analyzers for ecosystem research, portable emissions measurement systems (PEMS) for on-road vehicle testing, methane detection systems with sensor arrays for facility compliance, portable particulate matter monitors for field inspections, combustion analyzers, and replacement components and service agreements for existing analyzer systems. Issuing bodies include universities (Auburn University, University of Wisconsin-Madison), state environmental agencies (California Air Resources Board), county transportation authorities (Orange County Transportation Authority), municipalities (City of Tampa, City of Fort Worth, City of Detroit), county governments (Santa Clara County, Greenville County), public water and wastewater districts (Eastern Municipal Water District), and independent school districts.

Recent procurement activity spans multiple states with particular concentration in California—where CARB has issued multiple RFQs for PEMS quality control stations, gas dividers, and system controllers for on-road emissions testing compliance (RFQ #2025191 posted May 8, 2026, due May 21, 2026; RFQ #2025210 posted April 23, 2026, due May 6, 2026)—and Florida (City of Tampa's intent to single-source ChemScan analyzer replacement parts and services, posted April 14, 2026). Additional representative opportunities include Orange County Transportation Authority's IFB 250322 for methane detection system service and maintenance across five transit facilities with a four-year estimated value of $260,000 (due June 1, 2026); Auburn University's RFB for open-path CO₂/H₂O and CH₄ analyzers for College of Forestry research (due March 20, 2026); City of Fort Worth's RFQt for portable real-time particulate matter monitoring equipment for field-based environmental inspections (RFQt #26-0142, due March 23, 2026); and University of Wisconsin-Madison's bid for a simultaneous thermal and gas analysis system (due July 17, 2026). Service and maintenance contracts dominate the procurement mix, with prevailing wage and compliance documentation requirements common in transit and municipal procurements.