UNSPSC 41113111: Ozone analyzers

UNSPSC 41113111 Ozone analyzers is a Commodity code that encompasses specialized air quality monitoring instruments used by environmental agencies, water utilities, and school districts to measure ambient ozone and related atmospheric parameters. State and local governments procure under this code to support compliance monitoring, environmental assessment, and occupational safety across facilities ranging from ambient air quality networks to water treatment plants and educational campuses. The issuing bodies soliciting under this code include state environmental departments, municipal utilities, county school districts, and special-purpose environmental authorities. The scope of work includes not only ozone analyzers but also ancillary atmospheric monitoring equipment such as nephelometers for particulate measurement, hydrogen sulfide cavity ringdown spectrometers, canister samplers for volatile organic compounds, dynamic dilution calibrators, and zero-air supply systems—a broader atmospheric characterization capability than the code name alone suggests. Texas environmental agencies and water utilities dominate recent activity, with the Texas Commission on Environmental Quality issuing multiple RFBs for calibration systems, precursor monitoring equipment, and repair parts for existing air quality networks. Oregon's Department of Environmental Quality and the City of Phoenix also appear as significant recent buyers of specialized atmospheric monitoring equipment.

The State of Oregon Department of Administrative Services is soliciting up to 50 integrating nephelometers certified as Federal Equivalent Method instruments through IFB SDASOBO00018179, with bids due November 17, 2026 and a pre-bid conference on October 21, 2026; the initial purchase order will cover up to 20 units with delivery by April 30, 2027, and the contract will be a ten-year agreement with annual price escalation capped at five percent. The City of Phoenix Water Services Department is seeking atmospheric monitoring instruments for fixed installations at water and wastewater facilities under IFB 27-0435, with offers due September 4, 2026, requiring DBE-N participation compliance and specifying sensors, controllers, alarms, and calibration materials to detect hydrogen sulfide, methane, ozone, and other hazardous gases; the five-year contract includes mandatory replacement parts stocking within 48 hours. The Texas Commission on Environmental Quality has issued multiple RFBs in the past six months—including RFB 582-26-15833-1 for a thermal desorption automated gas chromatograph system to monitor 56 ozone precursor compounds, RFB 582-26-15573 for a hydrogen sulfide cavity ringdown spectrometer, and RFB 582-26-15242 for specialized calibrators and zero-air systems—reflecting sustained investment in ozone and precursor air quality monitoring infrastructure. The Michigan Department of Environment, Great Lakes, and Energy issued RFP 260000002166 for a specialized air monitoring shelter meeting detailed climate-control and electrical specifications, with proposals due July 1, 2026. Geographic concentration spans Texas (multiple TCEQ procurements), Oregon, Arizona (Phoenix), Florida (Pinellas County Schools), Michigan, and Pennsylvania, with Texas showing the highest recent activity frequency.