UNSPSC 51441800: Combination diagnostic agents

This classification denotes combination drugs and preparations which produce bio or physiological data or reactions which thereafter provide practitioners means to diagnose illness, hence the term DIAGNOSTICS. Typical combination diagnostic constituents are carbon monoxide, citric acid, cosyntropin, and sodium bicarbonate.

UNSPSC 51441800 Combination diagnostic agents is a Class code that encompasses maintenance, repair, and supply services for specialized diagnostic and inspection equipment used by state and local agencies. Recent state and local solicitations under this code show activity centered on X-ray inspection system maintenance and chemical reagent supply. The Broward County Aviation Department posted an RFI in June 2026 seeking maintenance services for Rapiscan 600 series, 900 series, VOTI XR3D, and Gemini X-ray inspection systems—proprietary equipment used in airport security screening operations. Pasco County, Florida simultaneously solicited vendors to supply large copper sulfate crystals and liquid copper sulfate on an as-needed basis. The issuing bodies are county-level purchasing offices; the code draws from aviation authorities and water or environmental management departments managing chemical treatment programs.

Geographic activity is concentrated in Florida, based on the two recent solicitations from Broward County and Pasco County posted in June 2026. The Broward RFI (BLD2132311F1) closed July 28, 2026, as a sole-source challenge notice inviting vendors to contest or propose comparable alternatives to proprietary Rapiscan equipment maintenance or to demonstrate multi-source availability. The Pasco RFQ (RFQFP261004) closed June 26, 2026, and indicated intent to contract with one or more vendors under an indefinite-quantity arrangement with no estimated value or term specified. Both solicitations represent specialized, niche procurement for equipment-specific services and chemical inputs rather than broad commodity supply.