UNSPSC 41103309: Flow injection analysis equipment

UNSPSC 41103309 Flow injection analysis equipment, a Commodity code, covers gas flow calibration and verification equipment, zero air generators, and related analytical instrumentation that state and local governments procure for air quality monitoring networks, environmental testing, and laboratory calibration operations. Recent state and local solicitations show demand for precision flow calibrators, mass flow terminals, zero air generators, and supporting analytical components used in EPA-compliant air monitoring and environmental testing. The TCEQ Air Monitoring Division and Illinois Environmental Protection Agency are the dominant issuing bodies, with additional activity from municipal water districts and regional environmental programs. Purchases typically specify NIST traceability, EPA protocol compliance, manufacturer warranties, and integration with existing laboratory infrastructure, reflecting the specialized nature of environmental monitoring equipment.

Texas and Illinois lead recent activity under this code. The Texas Commission on Environmental Quality issued RFBs on June 30, 2026 (gas flow calibrators, due July 7, 2026) and May 27, 2026 (mass flow terminal, due March 31, 2026), both specifying Mesa Laboratories and Fluke Electronics equipment respectively, with Texas bidder preferences available under 34 TAC Rule 20.38. The Illinois Environmental Protection Agency conducted a small-purchase sole-source procurement on March 12, 2026 (zero air generators valued at $59,100.00, due March 20, 2026) through Sabio Environmental, LLC. Eastern Municipal Water District (Riverside County, California) posted an RFP on June 9, 2026 (meter verification, calibration, and certification services, due July 15, 2026). Delivery requirements typically span 14 to 60 calendar days; testing and inspection occur within 30 to 45 days post-receipt; and payment follows 30 days after successful testing or invoice receipt.